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CVE-2026-41731
high
CVSS 8.1
Unsafe Deserialization in org.springframework.kafka:spring-kafka (CVE-2026-41731)
Summary
vulnerability in org.springframework.kafka:spring-kafka (CVE-2026-41731). Successful exploitation can lead to full system takeover.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-41731** has been found in org.springframework.kafka:spring-kafka.
Successful exploitation can lead to full system takeover. CVSS score: 8.1/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "org.springframework.kafka:spring-kafka CVE-2026-41731" on the vendor's site.
CVE-2026-41731 (org.springframework.kafka:spring-kafka) — CWE-502 / CVSS v3 8.1
Attack vector: remote (network-reachable) / unauthenticated / 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
**unsafe deserialization** (CWE-502) exists in org.springframework.kafka:spring-kafka.
📍 Affected scope
org.springframework.kafka:spring-kafka — .
🔥 Severity
Severity: High (CVSS 8.1/10). Successful exploitation can lead to full system takeover
🔧 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 'org.springframework.kafka:spring-kafka' .` 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 'org.springframework.kafka:spring-kafka' . | 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 `org.springframework.kafka:spring-kafka` 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。
Affected packages
maven
org.springframework.kafka:spring-kafka
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.8.11"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-41731
- package https://github.com/spring-projects/spring-kafka
- patch [email protected]
- web https://github.com/advisories/GHSA-xq69-5h5v-x9x4
- web 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- web 0b0ca135-0b70-47e7-9f44-1890c2a1c46c
- web 0b0ca135-0b70-47e7-9f44-1890c2a1c46c