← Back
CVE-2026-42276
medium
CVSS 4.3
Vulnerability in CVE-2026-42276 (CVE-2026-42276)
Summary
vulnerability in CVE-2026-42276 (CVE-2026-42276). Risk of unauthorized operations or information disclosure. Exploitable via `POST /chat/stop-chat-session/{chat_session_id}`.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-42276** has been found in CVE-2026-42276.
Attackers can target a specific entry point like `POST /chat/stop-chat-session/{chat_session_id}` over the network to misuse the product.
Risk of unauthorized operations or information disclosure. CVSS score: 4.3/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "CVE-2026-42276 CVE-2026-42276" on the vendor's site.
CVE-2026-42276 (CVE-2026-42276) — CWE-639 / CVSS v3 4.3
Attack vector: remote (network-reachable) / no user interaction
Attack surface: POST /chat/stop-chat-session/{chat_session_id}
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-639) exists in CVE-2026-42276. Attackers reach the vulnerable code path via `POST /chat/stop-chat-session/{chat_session_id}` without authentication.
📍 Affected scope
CVE-2026-42276 — . Attack surface: POST /chat/stop-chat-session/{chat_session_id}.
🔥 Severity
Severity: Medium (CVSS 4.3/10). 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 `POST /chat/stop-chat-session/{chat_session_id}` requests with malformed payloads or SQL meta-characters. Audit SBOM/dependencies to find affected services.
Response Actions (7 steps)
Concrete steps and command examples for SOC/SRE teams to execute in order
-
1Identify exposure identify
Audit SBOM/dependencies for affected components.依存マニフェストで影響コンポーネントを特定する。
-
3Hunt for indicators of compromise detect
grep 'POST /chat/stop-chat-session/{chat_session_id}' /var/log/nginx/access.log | grep -E '(unusual_payload|sqli_pattern)'アクセスログで `POST /chat/stop-chat-session/{chat_session_id}` への異常なリクエスト (不正な認証ヘッダ・SQLメタ文字)を過去 30〜90日分捜索。WAF/SIEM があれば該当パスのアラート発火履歴を確認。
-
7Post-deployment verification verify
Replay attack against POST /chat/stop-chat-session/{chat_session_id} on staging to confirm patch closes the vector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。