Vulnerability in commonmarker (CVE-2024-22051)
Summary
Vulnerability in commonmarker (CVE-2024-22051). Successful exploitation can lead to full system takeover. Mitigation: upgrade to 0.23.4 or later.
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Auto-generated summary
Assembled by SecPulse from the source data (CVSS, CWE, affected versions) using templates — no AI involved. Check the original description and references below for exact details.
A vulnerability tracked as CVE-2024-22051 has been found in commonmarker.
Successful exploitation can lead to full system takeover. CVSS score: 9.8/10.
What to do: upgrade commonmarker to 0.23.4 or later.
If unsure, ask your IT team or search "commonmarker CVE-2024-22051" on the vendor's site.
CVE-2024-22051 (commonmarker) — CWE-190 / CVSS v3 9.8
Attack vector: remote (network-reachable) / unauthenticated / no user interaction
Patched: 0.23.4 — apply immediately
Workaround: The vulnerability exists in the table markdown extensions of cmark-gfm.
Plan: 1) Audit SBOM/dependencies, 2) Stage→prod upgrade, 3) Add WAF/proxy monitoring on affected endpoints, 4) Hunt IOCs in logs.
Refs: see the GHSA / vendor advisory / patched release linked on this page.
A vulnerability (CWE-190) exists in commonmarker.
Check the vendor advisory for the affected versions of commonmarker.
Severity: Critical (CVSS 9.8/10). Successful exploitation can lead to full system takeover.
Update to 0.23.4.
Workaround: The vulnerability exists in the table markdown extensions of cmark-gfm.
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run grep -r 'commonmarker' . against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response actions
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
grep -r 'commonmarker' . | grep -v node_modulesリポジトリと本番環境の依存ファイル (package-lock.json / requirements.txt / go.sum / Gemfile.lock 等) で
commonmarkerを grep し、稼働しているサービス・バージョンを把握する。 -
2Apply temporary workaround mitigate
The vulnerability exists in the table markdown extensions of `cmark-gfm`.パッチが適用されるまでの応急処置として、The vulnerability exists in the table markdown extensions of
cmark-gfm. を実施。回避策の副作用 (機能低下) を確認した上で。 -
3Apply patch patch
Upgrade commonmarker to 0.23.4ステージング環境で 0.23.4 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスを含めること。
-
4Post-deployment verification verify
Confirm patched version is live in productionパッチ適用後、ステージングで PoC または同等の悪用パターンを再現して脆弱性が閉じたことを確認。本番ではアクセスログ・WAF でアラート再発が無いか継続監視。
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2024-22051 ruby-commonmarker
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com
- advisory vulncheck.com
- advisory github.com
- package github.com
- patch github.com
- web github.com
- web rubygems.org