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CVE-2026-44307
Path Traversal in Mako (CVE-2026-44307)
Summary
path traversal in Mako (CVE-2026-44307). Risk of unauthorized operations or information disclosure. Exploitable via ``Template.__init__``. Mitigation: upgrade to `1.3.12` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-44307** has been found in Mako.
Attackers can target a specific entry point like ``Template.__init__`` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: ?/10.
What to do: upgrade Mako to **1.3.12** or later.
If unsure, ask your IT team or search "Mako CVE-2026-44307" on the vendor's site.
CVE-2026-44307 (Mako) — CWE-22 /
Attack surface: `Template.__init__` / `posixpath` / `os.path` / `ntpath`
Patched: `1.3.12` — 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
**Path traversal** (CWE-22) exists in Mako. Attackers reach the vulnerable code path via ``Template.__init__`` without authentication.
📍 Affected scope
Mako — . Attack surface: `Template.__init__` / `posixpath` / `os.path` / `ntpath`.
🔥 Severity
Severity: ?. Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to **1.3.12**.
🛡️ 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 'Mako' .` 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 'Mako' . | 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 `Mako` 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 Mako to 1.3.12ステージング環境で 1.3.12 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
pip
Mako
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.3.12"}]}]
References
- web https://github.com/sqlalchemy/mako/commit/72e10c573ca0fbcbddd4455abca8ce92a61780d7
- web https://github.com/sqlalchemy/mako/issues/435
- web https://github.com/sqlalchemy/mako/releases/tag/rel_1_3_12
- web https://github.com/sqlalchemy/mako/security/advisories/GHSA-2h4p-vjrc-8xpq
- web https://nvd.nist.gov/vuln/detail/CVE-2026-44307
- web https://github.com/advisories/GHSA-2h4p-vjrc-8xpq