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CVE-2026-53138
high
CVSS 7.1
Out-of-Bounds Read in c (CVE-2026-53138)
Summary
vulnerability in c (CVE-2026-53138). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-53138** has been found in c.
Confidential information can be exposed externally. CVSS score: 7.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "c CVE-2026-53138" on the vendor's site.
CVE-2026-53138 (c) — CWE-125 / CVSS v3 7.1
Attack vector: local / 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
**out-of-bounds read** (CWE-125) exists in c.
📍 Affected scope
c — .
🔥 Severity
Severity: High (CVSS 7.1/10). Confidential information can be exposed externally
🔧 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 'c' .` 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 'c' . | 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 `c` 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
- web https://nvd.nist.gov/vuln/detail/CVE-2026-53138
- web https://git.kernel.org/stable/c/0e56f460bddb397fa9a8e6faf7ae7eaa86953eb1
- web https://git.kernel.org/stable/c/2645e3caf7e013189da9c6ff621d006cca5a538b
- web https://git.kernel.org/stable/c/6173cfea2f916e01c4f98e29cd654384a05e32a3
- web https://git.kernel.org/stable/c/ff287df16a1a58aca78b08d1f3ee09fc44da0351
- web https://github.com/advisories/GHSA-qc6f-vg59-3945
- web https://git.kernel.org/stable/c/04e271a952b8863bbafc99bd51aca4c32bff0e0d
- web https://git.kernel.org/stable/c/499c6b43a79dd684bddbd18fe8b2235aa2764db4
- web https://git.kernel.org/stable/c/6723188c42ca3b34a9fce634d7a0ecc9ccd5cd56
- web https://git.kernel.org/stable/c/e94f5323c41f32a74160378c3b19850d1f203ad5