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TuxCare security update for io.undertow (1 CVE)

Type: advisorySources: OSV

TuxCare rebuilt 9 io.undertow packages to address 1 CVE. Fixed in 2.0.26.Final-tuxcare.1.

Products
io.undertow:karaf, io.undertow:undertow-benchmarks, io.undertow:undertow-core, io.undertow:undertow-dist, io.undertow:undertow-examples, io.undertow:undertow-parent, io.undertow:undertow-parser-generator, io.undertow:undertow-servlet, io.undertow:undertow-websockets-jsr
Affected versions
2.0.26.Final
Fixed versions
2.0.26.Final-tuxcare.1
CVEs
CVE-2023-4639
Confirmed fixed CVEs
Not specified
Updated in this feed
30 Oct 2026, 16:54 UTC · Revision 1

Source evidence

TuxCare security update for io.undertow (1 CVE)

core-osv · Original source

Published 15 Sept 2026, 07:31 UTC

TuxCare rebuilt 9 io.undertow packages to address 1 CVE. Fixed in 2.0.26.Final-tuxcare.1.

osv:CLSA-2026-1789457514

io.undertow:karaf

Fixed versions: 2.0.26.Final-tuxcare.1

io.undertow:undertow-benchmarks

Fixed versions: 2.0.26.Final-tuxcare.1

io.undertow:undertow-core

Fixed versions: 2.0.26.Final-tuxcare.1

io.undertow:undertow-dist

Fixed versions: 2.0.26.Final-tuxcare.1

io.undertow:undertow-examples

Fixed versions: 2.0.26.Final-tuxcare.1

io.undertow:undertow-parent

Fixed versions: 2.0.26.Final-tuxcare.1

io.undertow:undertow-parser-generator

Fixed versions: 2.0.26.Final-tuxcare.1

io.undertow:undertow-servlet

Fixed versions: 2.0.26.Final-tuxcare.1

io.undertow:undertow-websockets-jsr

Fixed versions: 2.0.26.Final-tuxcare.1

Complete source record
{
  "id": "06a15257f9cee1449ee6f641effe1c2f29bddff9e424306f1fa5061df1de6327",
  "url": "https://osv.dev/vulnerability/CLSA-2026-1789457514",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "TuxCare security update for io.undertow (1 CVE)",
    "summary": "TuxCare rebuilt 9 io.undertow packages to address 1 CVE. Fixed in 2.0.26.Final-tuxcare.1.",
    "evidence": "osv:CLSA-2026-1789457514",
    "products": [
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          "evidence": "/affected/0/package/name"
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            "evidence": "/affected/0/ranges"
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          }
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      {
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          "evidence": "/affected/6/package/name"
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            "evidence": "/affected/6/versions"
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        ]
      },
      {
        "name": {
          "value": "io.undertow:undertow-servlet",
          "evidence": "/affected/7/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.0.26.Final-tuxcare.1",
            "evidence": "/affected/7/ranges"
          }
        ],
        "affected_versions": [
          {
            "value": "2.0.26.Final",
            "evidence": "/affected/7/versions"
          }
        ]
      },
      {
        "name": {
          "value": "io.undertow:undertow-websockets-jsr",
          "evidence": "/affected/8/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "2.0.26.Final-tuxcare.1",
            "evidence": "/affected/8/ranges"
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        ],
        "affected_versions": [
          {
            "value": "2.0.26.Final",
            "evidence": "/affected/8/versions"
          }
        ]
      }
    ],
    "severity": "unknown",
    "structured": {
      "id": "CLSA-2026-1789457514",
      "aliases": [
        "CLSA-2026-1789457514"
      ],
      "affected": [
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              ]
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          ],
          "package": {
            "name": "io.undertow:karaf",
            "purl": "pkg:maven/io.undertow/karaf",
            "ecosystem": "TuxCare:Maven"
          },
          "versions": [
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          ],
          "database_specific": {
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          }
        },
        {
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          ],
          "package": {
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            "purl": "pkg:maven/io.undertow/undertow-benchmarks",
            "ecosystem": "TuxCare:Maven"
          },
          "versions": [
            "2.0.26.Final"
          ],
          "database_specific": {
            "source": "https://github.com/cloudlinux/tuxcare-osv/tree/main/data/els_lang/maven/CLSA-2026-1789457514.json",
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          ],
          "package": {
            "name": "io.undertow:undertow-core",
            "purl": "pkg:maven/io.undertow/undertow-core",
            "ecosystem": "TuxCare:Maven"
          },
          "versions": [
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          ],
          "database_specific": {
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              "fixed_version": "2.0.26.Final-tuxcare.1"
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          }
        },
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              ]
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          ],
          "package": {
            "name": "io.undertow:undertow-dist",
            "purl": "pkg:maven/io.undertow/undertow-dist",
            "ecosystem": "TuxCare:Maven"
          },
          "versions": [
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          ],
          "package": {
            "name": "io.undertow:undertow-examples",
            "purl": "pkg:maven/io.undertow/undertow-examples",
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          },
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              "fixed_version": "2.0.26.Final-tuxcare.1"
            }
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
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                {
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          ],
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          "versions": [
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            }
          }
        }
      ],
      "modified": "2026-10-15T09:47:43.853956172Z",
      "provider": "osv",
      "upstream": [
        "CVE-2023-4639"
      ],
      "references": []
    },
    "related_cves": [
      {
        "value": "CVE-2023-4639",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": null
  },
  "source_id": "core-osv",
  "document_id": 328539,
  "published_at": "2026-09-15T07:31:54+00:00"
}