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radare2 — security advisory

Type: advisorySources: OSVAdvisory ID: UBUNTU-CVE-2026-4174

A vulnerability has been found in Radare2 5.9.9. This issue affects the function walk_exports_trie of the file libr/bin/format/mach0/mach0.c of the component Mach-O File Parser. Such manipulation leads to resource consumption. The attack can only be performed from a local environment. The exploit has been disclosed to the public and may be used. The existence of this vulnerability is still disputed at present. Upgrading to version 6.1.2 is capable of addressing this issue. The name of the patch is 4371ae84c99c46b48cb21badbbef06b30757aba0. You should upgrade the affected component. The code maintainer states that, "[he] wont consider this bug a DoS".

Products
radare2
Affected versions
0.9.6-3.1ubuntu1, 1.6.0+dfsg-1, 2.0.0+dfsg-1, 2.1.0+dfsg-1, 2.3.0+dfsg-1, 2.3.0+dfsg-2, 2.3.0+dfsg-2ubuntu0.1~esm1, 3.2.1+dfsg-5build1, 4.0.0+dfsg-1, 4.2.1+dfsg-1, 4.2.1+dfsg-2, 4.2.1+dfsg-2ubuntu0.1~esm1, 5.5.0+dfsg-1.1ubuntu2, 5.5.0+dfsg-1.1ubuntu3, 5.5.0+dfsg-1.1ubuntu3+esm1, 5.5.0+dfsg-1ubuntu1, 5.9.8+dfsg-2, 5.9.8+dfsg-2ubuntu0.25.10.1, 5.9.8+dfsg-2ubuntu0.25.10.2, 6.0.4+dfsg-1, 6.0.7+ds-1, 6.1.6+ds-2, 6.1.6+ds-3, 6.1.8+ds-1
Fixed versions
Not specified
CVEs
CVE-2026-4174
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 02:11 UTC · Revision 1

Source evidence

UBUNTU-CVE-2026-4174

core-osv · Original source

Published 16 Mar 2026, 14:19 UTC

A vulnerability has been found in Radare2 5.9.9. This issue affects the function walk_exports_trie of the file libr/bin/format/mach0/mach0.c of the component Mach-O File Parser. Such manipulation leads to resource consumption. The attack can only be performed from a local environment. The exploit has been disclosed to the public and may be used. The existence of this vulnerability is still disputed at present. Upgrading to version 6.1.2 is capable of addressing this issue. The name of the patch is 4371ae84c99c46b48cb21badbbef06b30757aba0. You should upgrade the affected component. The code maintainer states that, "[he] wont consider this bug a DoS".

osv:UBUNTU-CVE-2026-4174

radare2

Fixed versions: Not specified

radare2

Fixed versions: Not specified

radare2

Fixed versions: Not specified

radare2

Fixed versions: Not specified

radare2

Fixed versions: Not specified

radare2

Fixed versions: Not specified

radare2

Fixed versions: Not specified

Complete source record
{
  "id": "838c8782a5fb3894b3d0f769e6e95e694fbbed5069e6b455b10539954a5f7555",
  "url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-4174",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "UBUNTU-CVE-2026-4174",
    "summary": "A vulnerability has been found in Radare2 5.9.9. This issue affects the function walk_exports_trie of the file libr/bin/format/mach0/mach0.c of the component Mach-O File Parser. Such manipulation leads to resource consumption. The attack can only be performed from a local environment. The exploit has been disclosed to the public and may be used. The existence of this vulnerability is still disputed at present. Upgrading to version 6.1.2 is capable of addressing this issue. The name of the patch is 4371ae84c99c46b48cb21badbbef06b30757aba0. You should upgrade the affected component. The code maintainer states that, \"[he] wont consider this bug a DoS\".",
    "evidence": "osv:UBUNTU-CVE-2026-4174",
    "products": [
      {
        "name": {
          "value": "radare2",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "0.9.6-3.1ubuntu1",
            "evidence": "/affected/0/versions"
          }
        ]
      },
      {
        "name": {
          "value": "radare2",
          "evidence": "/affected/1/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "1.6.0+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.0.0+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.1.0+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.3.0+dfsg-1",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.3.0+dfsg-2",
            "evidence": "/affected/1/versions"
          },
          {
            "value": "2.3.0+dfsg-2ubuntu0.1~esm1",
            "evidence": "/affected/1/versions"
          }
        ]
      },
      {
        "name": {
          "value": "radare2",
          "evidence": "/affected/2/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "3.2.1+dfsg-5build1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "4.0.0+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "4.2.1+dfsg-1",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "4.2.1+dfsg-2",
            "evidence": "/affected/2/versions"
          },
          {
            "value": "4.2.1+dfsg-2ubuntu0.1~esm1",
            "evidence": "/affected/2/versions"
          }
        ]
      },
      {
        "name": {
          "value": "radare2",
          "evidence": "/affected/3/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.5.0+dfsg-1ubuntu1",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "5.5.0+dfsg-1.1ubuntu2",
            "evidence": "/affected/3/versions"
          },
          {
            "value": "5.5.0+dfsg-1.1ubuntu3",
            "evidence": "/affected/3/versions"
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          {
            "value": "5.5.0+dfsg-1.1ubuntu3+esm1",
            "evidence": "/affected/3/versions"
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        ]
      },
      {
        "name": {
          "value": "radare2",
          "evidence": "/affected/4/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.9.8+dfsg-2",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "5.9.8+dfsg-2ubuntu0.25.10.1",
            "evidence": "/affected/4/versions"
          },
          {
            "value": "5.9.8+dfsg-2ubuntu0.25.10.2",
            "evidence": "/affected/4/versions"
          }
        ]
      },
      {
        "name": {
          "value": "radare2",
          "evidence": "/affected/5/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "6.0.7+ds-1",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "6.1.6+ds-2",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "6.1.6+ds-3",
            "evidence": "/affected/5/versions"
          },
          {
            "value": "6.1.8+ds-1",
            "evidence": "/affected/5/versions"
          }
        ]
      },
      {
        "name": {
          "value": "radare2",
          "evidence": "/affected/6/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [],
        "affected_versions": [
          {
            "value": "5.9.8+dfsg-2",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "6.0.4+dfsg-1",
            "evidence": "/affected/6/versions"
          },
          {
            "value": "6.0.7+ds-1",
            "evidence": "/affected/6/versions"
          }
        ]
      }
    ],
    "severity": "low",
    "structured": {
      "id": "UBUNTU-CVE-2026-4174",
      "aliases": [
        "UBUNTU-CVE-2026-4174"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
        },
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P"
        },
        {
          "type": "Ubuntu",
          "score": "medium"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "radare2",
            "purl": "pkg:deb/ubuntu/radare2?arch=source&distro=xenial",
            "ecosystem": "Ubuntu:16.04:LTS"
          },
          "versions": [
            "0.9.6-3.1ubuntu1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4174.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libradare2-0.9.6",
                "binary_version": "0.9.6-3.1ubuntu1"
              },
              {
                "binary_name": "libradare2-common",
                "binary_version": "0.9.6-3.1ubuntu1"
              },
              {
                "binary_name": "radare2",
                "binary_version": "0.9.6-3.1ubuntu1"
              },
              {
                "binary_name": "radare2-plugins",
                "binary_version": "0.9.6-3.1ubuntu1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "radare2",
            "purl": "pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Fbionic",
            "ecosystem": "Ubuntu:Pro:18.04:LTS"
          },
          "versions": [
            "1.6.0+dfsg-1",
            "2.0.0+dfsg-1",
            "2.1.0+dfsg-1",
            "2.3.0+dfsg-1",
            "2.3.0+dfsg-2",
            "2.3.0+dfsg-2ubuntu0.1~esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4174.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libradare2-2.3",
                "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
              },
              {
                "binary_name": "libradare2-common",
                "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
              },
              {
                "binary_name": "radare2",
                "binary_version": "2.3.0+dfsg-2ubuntu0.1~esm1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "radare2",
            "purl": "pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Ffocal",
            "ecosystem": "Ubuntu:Pro:20.04:LTS"
          },
          "versions": [
            "3.2.1+dfsg-5build1",
            "4.0.0+dfsg-1",
            "4.2.1+dfsg-1",
            "4.2.1+dfsg-2",
            "4.2.1+dfsg-2ubuntu0.1~esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4174.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libradare2-4.2.1",
                "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
              },
              {
                "binary_name": "libradare2-common",
                "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
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              {
                "binary_name": "radare2",
                "binary_version": "4.2.1+dfsg-2ubuntu0.1~esm1"
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        },
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              "events": [
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                }
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          ],
          "package": {
            "name": "radare2",
            "purl": "pkg:deb/ubuntu/radare2?arch=source&distro=esm-apps%2Fnoble",
            "ecosystem": "Ubuntu:Pro:24.04:LTS"
          },
          "versions": [
            "5.5.0+dfsg-1ubuntu1",
            "5.5.0+dfsg-1.1ubuntu2",
            "5.5.0+dfsg-1.1ubuntu3",
            "5.5.0+dfsg-1.1ubuntu3+esm1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4174.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libradare2-5.0.0t64",
                "binary_version": "5.5.0+dfsg-1.1ubuntu3+esm1"
              },
              {
                "binary_name": "libradare2-common",
                "binary_version": "5.5.0+dfsg-1.1ubuntu3+esm1"
              },
              {
                "binary_name": "radare2",
                "binary_version": "5.5.0+dfsg-1.1ubuntu3+esm1"
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          }
        },
        {
          "ranges": [
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              "type": "ECOSYSTEM",
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                {
                  "introduced": "0"
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            }
          ],
          "package": {
            "name": "radare2",
            "purl": "pkg:deb/ubuntu/radare2?arch=source&distro=questing",
            "ecosystem": "Ubuntu:25.10"
          },
          "versions": [
            "5.9.8+dfsg-2",
            "5.9.8+dfsg-2ubuntu0.25.10.1",
            "5.9.8+dfsg-2ubuntu0.25.10.2"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4174.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libradare2-5.0.0t64",
                "binary_version": "5.9.8+dfsg-2ubuntu0.25.10.2"
              },
              {
                "binary_name": "libradare2-common",
                "binary_version": "5.9.8+dfsg-2ubuntu0.25.10.2"
              },
              {
                "binary_name": "radare2",
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              }
            ]
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        },
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          "ranges": [
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                }
              ]
            }
          ],
          "package": {
            "name": "radare2",
            "purl": "pkg:deb/ubuntu/radare2?arch=source&distro=stonking",
            "ecosystem": "Ubuntu:26.10"
          },
          "versions": [
            "6.0.7+ds-1",
            "6.1.6+ds-2",
            "6.1.6+ds-3",
            "6.1.8+ds-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4174.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libradare2-6.0.0t64",
                "binary_version": "6.1.8+ds-1"
              },
              {
                "binary_name": "libradare2-common",
                "binary_version": "6.1.8+ds-1"
              },
              {
                "binary_name": "radare2",
                "binary_version": "6.1.8+ds-1"
              }
            ]
          }
        },
        {
          "ranges": [
            {
              "type": "ECOSYSTEM",
              "events": [
                {
                  "introduced": "0"
                }
              ]
            }
          ],
          "package": {
            "name": "radare2",
            "purl": "pkg:deb/ubuntu/radare2?arch=source&distro=resolute",
            "ecosystem": "Ubuntu:26.04:LTS"
          },
          "versions": [
            "5.9.8+dfsg-2",
            "6.0.4+dfsg-1",
            "6.0.7+ds-1"
          ],
          "database_specific": {
            "source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-4174.json"
          },
          "ecosystem_specific": {
            "binaries": [
              {
                "binary_name": "libradare2-6.0.0t64",
                "binary_version": "6.0.7+ds-1"
              },
              {
                "binary_name": "libradare2-common",
                "binary_version": "6.0.7+ds-1"
              },
              {
                "binary_name": "radare2",
                "binary_version": "6.0.7+ds-1"
              }
            ]
          }
        }
      ],
      "modified": "2026-10-17T12:58:15.763421527Z",
      "provider": "osv",
      "upstream": [
        "CVE-2026-4174"
      ],
      "references": [
        "https://ubuntu.com/security/CVE-2026-4174",
        "https://www.cve.org/CVERecord?id=CVE-2026-4174",
        "https://github.com/radareorg/radare2/issues/25482"
      ]
    },
    "related_cves": [
      {
        "value": "CVE-2026-4174",
        "evidence": "/upstream"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 358472,
  "published_at": "2026-03-16T14:19:00+00:00"
}