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TuxCare security update for io.netty (12 CVEs)

Type: advisorySources: OSV

TuxCare rebuilt 43 io.netty packages to address 12 CVEs. Fixed in 4.1.63.Final-tuxcare.2.

Products
io.netty:netty-all, io.netty:netty-bom, io.netty:netty-buffer, io.netty:netty-codec, io.netty:netty-codec-dns, io.netty:netty-codec-haproxy, io.netty:netty-codec-http, io.netty:netty-codec-http2, io.netty:netty-codec-memcache, io.netty:netty-codec-mqtt, io.netty:netty-codec-redis, io.netty:netty-codec-smtp, io.netty:netty-codec-socks, io.netty:netty-codec-stomp, io.netty:netty-codec-xml, io.netty:netty-common, io.netty:netty-dev-tools, io.netty:netty-example, io.netty:netty-handler, io.netty:netty-handler-proxy, io.netty:netty-microbench, io.netty:netty-parent, io.netty:netty-resolver, io.netty:netty-resolver-dns, io.netty:netty-resolver-dns-native-macos, io.netty:netty-tarball, io.netty:netty-testsuite, io.netty:netty-testsuite-autobahn, io.netty:netty-testsuite-http2, io.netty:netty-testsuite-native, io.netty:netty-testsuite-native-image, io.netty:netty-testsuite-native-image-client, io.netty:netty-testsuite-native-image-client-runtime-init, io.netty:netty-testsuite-osgi, io.netty:netty-transport, io.netty:netty-transport-blockhound-tests, io.netty:netty-transport-native-epoll, io.netty:netty-transport-native-kqueue, io.netty:netty-transport-native-unix-common, io.netty:netty-transport-native-unix-common-tests, io.netty:netty-transport-rxtx, io.netty:netty-transport-sctp, io.netty:netty-transport-udt
Affected versions
4.1.63.Final, 4.1.63.Final-tuxcare.1
Fixed versions
4.1.63.Final-tuxcare.2
CVEs
CVE-2021-37137, CVE-2021-43797, CVE-2022-24823, CVE-2022-41881, CVE-2022-41915, CVE-2023-34462, CVE-2023-44487, CVE-2024-29025, CVE-2024-47535, CVE-2025-25193, CVE-2025-55163, CVE-2025-58057
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 16:06 UTC · Revision 1

Source evidence

TuxCare security update for io.netty (12 CVEs)

core-osv · Original source

Published 4 Aug 2026, 14:52 UTC

TuxCare rebuilt 43 io.netty packages to address 12 CVEs. Fixed in 4.1.63.Final-tuxcare.2.

osv:CLSA-2025-1764202056

io.netty:netty-all

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-bom

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-buffer

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-dns

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-haproxy

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-http

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-http2

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-memcache

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-mqtt

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-redis

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-smtp

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-socks

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-stomp

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-codec-xml

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-common

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-dev-tools

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-example

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-handler

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-handler-proxy

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-microbench

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-parent

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-resolver

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-resolver-dns

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-resolver-dns-native-macos

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-tarball

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-testsuite

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-testsuite-autobahn

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-testsuite-http2

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-testsuite-native

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-testsuite-native-image

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-testsuite-native-image-client

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-testsuite-native-image-client-runtime-init

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-testsuite-osgi

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-transport

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-transport-blockhound-tests

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-transport-native-epoll

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-transport-native-kqueue

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-transport-native-unix-common

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-transport-native-unix-common-tests

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-transport-rxtx

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-transport-sctp

Fixed versions: 4.1.63.Final-tuxcare.2

io.netty:netty-transport-udt

Fixed versions: 4.1.63.Final-tuxcare.2

Complete source record
{
  "id": "173b6fb7b5cc16cb17aa38ee5713901fe4bd4368f96375323e7972cd2fa461e5",
  "url": "https://osv.dev/vulnerability/CLSA-2025-1764202056",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "TuxCare security update for io.netty (12 CVEs)",
    "summary": "TuxCare rebuilt 43 io.netty packages to address 12 CVEs. Fixed in 4.1.63.Final-tuxcare.2.",
    "evidence": "osv:CLSA-2025-1764202056",
    "products": [
      {
        "name": {
          "value": "io.netty:netty-all",
          "evidence": "/affected/0/package/name"
        },
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          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/0/ranges"
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        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/0/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-bom",
          "evidence": "/affected/1/package/name"
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        "prerequisites": [],
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          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/1/ranges"
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            "evidence": "/affected/1/versions"
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            "evidence": "/affected/1/versions"
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        ]
      },
      {
        "name": {
          "value": "io.netty:netty-buffer",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/2/ranges"
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            "value": "4.1.63.Final",
            "evidence": "/affected/2/versions"
          },
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            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/3/ranges"
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        "affected_versions": [
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            "evidence": "/affected/3/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/3/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-dns",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/4/ranges"
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        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/4/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-haproxy",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/5/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/5/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-http",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/6/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/6/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-http2",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/7/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/7/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-memcache",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/8/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/8/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/8/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-mqtt",
          "evidence": "/affected/9/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/9/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/9/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/9/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-redis",
          "evidence": "/affected/10/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/10/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/10/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/10/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-smtp",
          "evidence": "/affected/11/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/11/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/11/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/11/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-socks",
          "evidence": "/affected/12/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/12/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/12/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/12/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-stomp",
          "evidence": "/affected/13/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/13/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/13/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/13/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-codec-xml",
          "evidence": "/affected/14/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/14/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/14/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/14/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-common",
          "evidence": "/affected/15/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/15/ranges"
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        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/15/versions"
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          {
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            "evidence": "/affected/15/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-dev-tools",
          "evidence": "/affected/16/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/16/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/16/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/16/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-example",
          "evidence": "/affected/17/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/17/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/17/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/17/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-handler",
          "evidence": "/affected/18/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/18/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/18/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/18/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-handler-proxy",
          "evidence": "/affected/19/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/19/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/19/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/19/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-microbench",
          "evidence": "/affected/20/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/20/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/20/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/20/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-parent",
          "evidence": "/affected/21/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/21/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/21/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/21/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-resolver",
          "evidence": "/affected/22/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/22/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/22/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/22/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-resolver-dns",
          "evidence": "/affected/23/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/23/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/23/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/23/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-resolver-dns-native-macos",
          "evidence": "/affected/24/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/24/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/24/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/24/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-tarball",
          "evidence": "/affected/25/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/25/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/25/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/25/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.netty:netty-testsuite",
          "evidence": "/affected/26/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "4.1.63.Final-tuxcare.2",
            "evidence": "/affected/26/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "4.1.63.Final",
            "evidence": "/affected/26/versions"
          },
          {
            "value": "4.1.63.Final-tuxcare.1",
            "evidence": "/affected/26/versions"
          }
        ]
      },
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        {
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                  "introduced": "4.1.63.Final"
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                {
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              ]
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          "package": {
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      ],
      "modified": "2026-10-15T09:46:13.930460795Z",
      "provider": "osv",
      "upstream": [
        "CVE-2021-37137",
        "CVE-2021-43797",
        "CVE-2022-24823",
        "CVE-2022-41881",
        "CVE-2022-41915",
        "CVE-2023-34462",
        "CVE-2023-44487",
        "CVE-2024-29025",
        "CVE-2024-47535",
        "CVE-2025-25193",
        "CVE-2025-55163",
        "CVE-2025-58057"
      ],
      "references": []
    },
    "related_cves": [
      {
        "value": "CVE-2021-37137",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2021-43797",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2022-24823",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2022-41881",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2022-41915",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2023-34462",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2023-44487",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2024-29025",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2024-47535",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2025-25193",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2025-55163",
        "evidence": "/upstream"
      },
      {
        "value": "CVE-2025-58057",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 326837,
  "published_at": "2026-08-04T14:52:06+00:00"
}