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CVE-2026-31423
medium
CVSS 5.5
Vulnerability in c (CVE-2026-31423)
Summary
vulnerability in c (CVE-2026-31423). Risk of unauthorized operations or information disclosure. Exploitable via ``dsm``.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-31423** has been found in c.
Attackers can target a specific entry point like ``dsm`` over the network to misuse the product.
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-2026-31423" on the vendor's site.
CVE-2026-31423 (c) — CWE-369 / CVSS v3 5.5
Attack vector: local / no user interaction
Attack surface: `dsm`
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-369) exists in c. Attackers reach the vulnerable code path via ``dsm`` without authentication.
📍 Affected scope
c — . Attack surface: `dsm`.
🔥 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
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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://git.kernel.org/stable/c/17c1b9807b8a67d676b6dcf749ee932ebaa7f568
- web https://git.kernel.org/stable/c/25b6821884713a31e2b49fb67b0ebd765b33e0a9
- web https://git.kernel.org/stable/c/4576100b8cd03118267513cafacde164b498b322
- web https://git.kernel.org/stable/c/ab1ff5890c7354afc7be56502fcfbd61f3b7ae4f
- web https://git.kernel.org/stable/c/ad8e8fec40290a8c8cf145c0deaadf76f80c5163
- web https://git.kernel.org/stable/c/b9e6431cbea8bb1fae8069ed099b4ee100499835
- web https://git.kernel.org/stable/c/c56f78614e7781aaceca9bd3cb2128bf7d45c3bd
- web https://git.kernel.org/stable/c/d0aefec1b1a1ba2c1d251028dc2c4e5b4ce1fea5
- web https://nvd.nist.gov/vuln/detail/CVE-2026-31423
- web https://github.com/advisories/GHSA-mgjx-cg3q-7vjw