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CVE-2026-31427
medium
CVSS 5.5
Vulnerability in c (CVE-2026-31427)
Summary
vulnerability in c (CVE-2026-31427). Risk of unauthorized operations or information disclosure.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31427** has been found in c.
Risk of unauthorized operations or information disclosure. CVSS score: 5.5/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "c CVE-2026-31427" on the vendor's site.
CVE-2026-31427 (c) — CWE-908 / CVSS v3 5.5
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
**A vulnerability** (CWE-908) exists in c.
📍 Affected scope
c — .
🔥 Severity
Severity: Medium (CVSS 5.5/10). 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 '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
-
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。
-
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://git.kernel.org/stable/c/01f34a80ac23ae90b1909b94b4ed05343a62f646
- web https://git.kernel.org/stable/c/52fdda318ef2362fc5936385bcb8b3d0328ee629
- web https://git.kernel.org/stable/c/6a2b724460cb67caed500c508c2ae5cf012e4db4
- web https://git.kernel.org/stable/c/6e5e3c87b7e6212f1d8414fc2e4d158b01e12025
- web https://git.kernel.org/stable/c/7edca70751b9bdb5b83eed53cde21eccf3c86147
- web https://git.kernel.org/stable/c/82baeb871e8f04906bc886273fdf0209e1754eb3
- web https://git.kernel.org/stable/c/faa6ea32797a1847790514ff0da1be1d09771580
- web https://git.kernel.org/stable/c/fe463e76c9b4b0b43b5ee8961b4c500231f1a3f6
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31427
- web https://github.com/advisories/GHSA-w9rr-8fx7-936w