CVE-2024-22051: CommonMarker · Integer Overflow or Wraparound
Source CVE Database V5
Not known to be exploited · CVSS 9.8 Critical · fixed in 0.23.4 : patch affected systems as a priority.
Data as of 26 Oct 2026, 13:47 UTC
- EPSS
- 1.4% chance of exploitation in 30 days – higher than 73% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 0.23.4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 4 Jan 2024
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
AI-suggested
Upgrade CommonMarker to version 0.23.4 or later, where this integer overflow vulnerability is fixed. No other mitigations are indicated by the vendor advisory.
Description
CommonMarker versions prior to 0.23.4 are at risk of an integer overflow vulnerability. This vulnerability can result in possibly unauthenticated remote attackers to cause heap memory corruption, potentially leading to an information leak or remote code execution, via parsing tables with marker rows that contain more than UINT16_MAX columns.
References
- github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x (opens in a new tab)
- github.com/gjtorikian/commonmarker/security/advisories/GHSA-fmx4-26r3-wxpf (opens in a new tab)
- github.com/gjtorikian/commonmarker/commit/ab4504fd17460627a6ab255bc3c63e8e5fc6aed3 (opens in a new tab)
- github.com/advisories/GHSA-fmx4-26r3-wxpf (opens in a new tab)
- vulncheck.com/advisories/vc-advisory-GHSA-fmx4-26r3-wxpf (opens in a new tab)