osv-2026-717
Vulnerability from osv_ossfuzz
Published
2026-05-12 00:11
Modified
2026-05-12 00:11
Summary
Stack-use-after-scope in enter_block_callback
Details

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=511831392

Crash type: Stack-use-after-scope READ 4
Crash state:
enter_block_callback
md_process_all_blocks
md_parse
To clipboard 

{
  "affected": [
    {
      "database_specific": {
        "fixed_range": "345666722d965072c2c94bbb08b2ae91385c1592:4f0b252c8e8952d53156949777ebfe3f9355def3",
        "introduced_range": "07712a59a4cdb66170d608125ce3a191ffa3d4c7:345666722d965072c2c94bbb08b2ae91385c1592"
      },
      "ecosystem_specific": {
        "severity": null
      },
      "package": {
        "ecosystem": "OSS-Fuzz",
        "name": "md4c",
        "purl": "pkg:generic/md4c"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "ed89abed05845225cdfe2c94a49ec13a37b7578f"
            },
            {
              "fixed": "4f0b252c8e8952d53156949777ebfe3f9355def3"
            }
          ],
          "repo": "https://github.com/mity/md4c",
          "type": "GIT"
        }
      ],
      "versions": []
    }
  ],
  "details": "OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=511831392\n\n```\nCrash type: Stack-use-after-scope READ 4\nCrash state:\nenter_block_callback\nmd_process_all_blocks\nmd_parse\n```\n",
  "id": "OSV-2026-717",
  "modified": "2026-05-12T00:11:13.428832Z",
  "published": "2026-05-12T00:11:13.428437Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=511831392"
    }
  ],
  "schema_version": "1.7.5",
  "summary": "Stack-use-after-scope in enter_block_callback"
}


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.