Integer overflow in Github Cmark-Gfm

CVE-2024-22051

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.

Vulnerability class: Integer Overflow

EPSS: 0.015 (70.7th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

Affected products

Weakness classification (CWE)

Public proof-of-concept exploits

References

Frequently asked questions

What is CVE-2024-22051?
CVE-2024-22051 is a critical-severity vulnerability in Github Cmark-Gfm, classified under Integer Overflow or Wraparound. CVSS score: 9.8/10. Published 2024-01-04.
How severe is CVE-2024-22051?
Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-22051 known to be exploited?
2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.