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CVE-2024-26151
Vulnerability in mjml (CVE-2024-26151)
Summary
vulnerability in mjml (CVE-2024-26151). Data can be tampered with by attackers. Mitigation: upgrade to `0.11.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2024-26151** has been found in mjml.
Data can be tampered with by attackers. CVSS score: ?/10.
What to do: upgrade mjml to **0.11.0** or later.
If unsure, ask your IT team or search "mjml CVE-2024-26151" on the vendor's site.
CVE-2024-26151 (mjml) — CWE-20 /
Attack vector: remote (network-reachable)
Patched: `0.11.0` — apply immediately
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.
❓ What is the problem
**A vulnerability** (CWE-20) exists in mjml.
📍 Affected scope
mjml — .
🔥 Severity
Severity: ?. Data can be tampered with by attackers
🔧 How to fix
Update to **0.11.0**.
🛡️ Workaround
Until the patch is applied: disable the affected feature, apply WAF rules, or restrict access via network ACLs.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'mjml' .` against your dependency files (package-lock.json, requirements.txt, go.sum) to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
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1Identify exposure identify
grep -r 'mjml' . | 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 `mjml` を grep し、稼働しているサービス・バージョンを把握する。
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6Apply patch patch
Upgrade mjml to 0.11.0ステージング環境で 0.11.0 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と、Step 3 で見つけた異常検知の続報チェックを含めること。
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7Post-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 Step 3 と同じログクエリでアラート再発が無いか継続監視。
Affected packages
PyPI
mjml
[{"type":"ECOSYSTEM","events":[{"introduced":"0.10.0"},{"fixed":"0.11.0"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2024-26151
- advisory https://github.com/advisories/GHSA-578p-fxmm-6229
- package https://github.com/FelixSchwarz/mjml-python
- package https://pypi.org/project/mjml
- web https://github.com/FelixSchwarz/mjml-python/security/advisories/GHSA-578p-fxmm-6229
- web https://github.com/FelixSchwarz/mjml-python/issues/52
- web https://github.com/FelixSchwarz/mjml-python/commit/84c495da20a91640a1ca551ace17df7f3be644aa
- web https://github.com/FelixSchwarz/mjml-python/commit/8d410b7a500703080bb14ed7e3d2663fe16767e6
- web https://github.com/FelixSchwarz/mjml-python/releases/tag/v0.11.0