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CVE-2026-23942
medium
CVSS 5.4
Path Traversal in path-traversal (CVE-2026-23942)
Summary
path traversal in path-traversal (CVE-2026-23942). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-23942** has been found in path-traversal.
Risk of unauthorized operations or information disclosure. CVSS score: 5.4/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "path-traversal CVE-2026-23942" on the vendor's site.
CVE-2026-23942 (path-traversal) — CWE-22 / CVSS v3 5.4
Attack vector: remote (network-reachable) / no user interaction
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 path-traversal.
📍 Affected scope
path-traversal — .
🔥 Severity
Severity: Medium (CVSS 5.4/10). Risk of unauthorized operations or information disclosure
🔧 How to fix
Update to the patched release per vendor advisory.
🛡️ 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 'path-traversal' .` 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 'path-traversal' . | 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 `path-traversal` 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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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。
References
- advisory https://github.com/erlang/otp/security/advisories/GHSA-4749-w85x-hw9h
- patch https://github.com/erlang/otp/commit/27688a824f753d4c16371dc70e88753fb410590b
- patch https://github.com/erlang/otp/commit/5ed603a1211b83b8be2d1fc06d3f3bf30c3c9759
- patch https://github.com/erlang/otp/commit/9e0ac85d3485e7898e0da88a14be0ee2310a3b28
- patch 6b3ad84c-e1a6-4bf7-a703-f496b71e49db
- web https://www.erlang.org/doc/system/versions.html#order-of-versions
- web https://cna.erlef.org/cves/CVE-2026-23942.html