← Back
CVE-2026-43028
high
CVSS 7.1
Vulnerability in c (CVE-2026-43028)
Summary
vulnerability in c (CVE-2026-43028). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-43028** 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-2026-43028" on the vendor's site.
CVE-2026-43028 (c) — 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
**A vulnerability** (unclassified) 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
-
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/673bbd36cba21d10a10f0932f479df7468e26fbb
- web https://git.kernel.org/stable/c/73124608172890306b85f2206d8b3cac20e324f1
- web https://git.kernel.org/stable/c/a958a4f90ddd7de0800b33ca9d7b886b7d40f74e
- web https://git.kernel.org/stable/c/aa6cd4a8863391e0a64f62d8922cb0af732a2cf2
- web https://git.kernel.org/stable/c/bcac50ea0a29d430eedc5ac87b215393b567baa9
- web https://git.kernel.org/stable/c/c2d4a3abb15ca14716c6d8b9ffcbcd7c63626af4
- web https://git.kernel.org/stable/c/ea01c1b219f5a11c66918abaa6f052e5a74041d6
- web https://git.kernel.org/stable/c/f419bdc205894750f4d3ec042bc87a1b9cde1351
- web https://cert-portal.siemens.com/productcert/html/ssa-019113.html
- web https://cert-portal.siemens.com/productcert/html/ssa-082556.html
- web https://nvd.nist.gov/vuln/detail/CVE-2026-43028
- web https://github.com/advisories/GHSA-4cwh-prx4-4w5p