osv-2026-532
Vulnerability from osv_ossfuzz
Published
2026-04-05 00:06
Modified
2026-04-05 00:06
Summary
Heap-buffer-overflow in regsub
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=499446092

Crash type: Heap-buffer-overflow READ 1
Crash state:
regsub
format_replace
format_expand1
References
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "66c324d7ef714e0658ae8525b3f8e4419f211fbe:42dafcc62a9361eeaff286172f0e35d4ece12b5a",
        "introduced_range": "6324dae114a1f8c9e1454914a70cba0ded7f5b34:a30fc69f868fa0adf85b0957fe3f67357fe73d73"
      },
      "ecosystem_specific": {
        "severity": "MEDIUM"
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "tmux",
        "purl": "pkg:generic/tmux"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "7620c03b7278ed631efa98455c5e116538c23ed7"
            },
            {
              "fixed": "3badbc50e0d1c45ebfca2d2d1fad059a055584a5"
            },
            {
              "fixed": "42dafcc62a9361eeaff286172f0e35d4ece12b5a"
            }
          ],
          "repo": "https://github.com/tmux/tmux.git",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=499446092\n\n```\nCrash type: Heap-buffer-overflow READ 1\nCrash state:\nregsub\nformat_replace\nformat_expand1\n```\n",
  "id": "OSV-2026-532",
  "modified": "2026-04-05T00:06:36.291504Z",
  "published": "2026-04-05T00:06:36.291055Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=499446092"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "Heap-buffer-overflow in regsub"
}


Log in or create an account to share your comment.




Tags
Taxonomy of the tags.




Sightings

Author Source Type Date

Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.