CVE-2024-22051: cmark-gfm Integer Overflow — Fix

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.

Is your site exposed to CVE-2024-22051?

Run a free security scan — no signup, results in seconds.

CVSS v3.1 Score

9.8

CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-190 Integer Overflow

Affected Products

Vendor	Product	Versions
github	cmark-gfm	< 0.28.3.gfm.21
github	cmark-gfm	0.29.0.gfm.0 — 0.29.0.gfm.3
gjtorikian	commonmarker	< 0.23.4

References

Advisories & Patches

https://github.com/gjtorikian/commonmarker/commit/ab4504fd17460627a6ab255bc3c63e8e5fc6aed3 https://github.com/gjtorikian/commonmarker/security/advisories/GHSA-fmx4-26r3-wxpf https://github.com/gjtorikian/commonmarker/commit/ab4504fd17460627a6ab255bc3c63e8e5fc6aed3 https://github.com/gjtorikian/commonmarker/security/advisories/GHSA-fmx4-26r3-wxpf

Other References

https://github.com/advisories/GHSA-fmx4-26r3-wxpf https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x https://vulncheck.com/advisories/vc-advisory-GHSA-fmx4-26r3-wxpf https://github.com/advisories/GHSA-fmx4-26r3-wxpf https://github.com/github/cmark-gfm/security/advisories/GHSA-mc3g-88wq-6f4x https://vulncheck.com/advisories/vc-advisory-GHSA-fmx4-26r3-wxpf

Frequently Asked Questions

What is 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. It has a CVSS v3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-22051? +

CVE-2024-22051 has a CVSS v3.1 score of 9.8 out of 10, rated CRITICAL. This is a critical vulnerability that should be patched immediately.

What products are affected by CVE-2024-22051? +

CVE-2024-22051 affects products from github, gjtorikian, specifically: cmark-gfm, commonmarker. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-22051? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-2574

Out-of-bounds array write in Xpdf 4.05 and earlier, due to incorrect integer overflow checking in the PostScript function interpreter code.

CVE-2025-46333

z2d is a pure Zig 2D graphics library. Versions of z2d after `0.5.1` and up to and including `0.6.0`, when …

CVE-2024-30212

If a SCSI READ(10) command is initiated via USB using the largest LBA (0xFFFFFFFF) with it's default block size of …

CVE-2025-52935

Integer Overflow or Wraparound vulnerability in dragonflydb dragonfly (src/redis/lua/struct modules). This vulnerability is associated with program files lua_struct.C. This issue …

CVE-2025-7709

An integer overflow exists in the FTS5 https://sqlite.org/fts5.html extension. It occurs when the size of an array of tombstone pointers …

CVE-2025-34297

KissFFT versions prior to the fix commit 1b083165 contain an integer overflow in kiss_fft_alloc() in kiss_fft.c on platforms where size_t …

CVE-2024-22051