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CVE-2025-23389
Vulnerability in github.com/rancher/rancher (CVE-2025-23389)
Summary
vulnerability in github.com/rancher/rancher (CVE-2025-23389). Confidential information can be exposed externally.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2025-23389** has been found in github.com/rancher/rancher.
Confidential information can be exposed externally. CVSS score: ?/10.
What to do: apply the vendor's official patched release.
If unsure, ask your IT team or search "github.com/rancher/rancher CVE-2025-23389" on the vendor's site.
CVE-2025-23389 (github.com/rancher/rancher) — CWE-284 /
Attack vector: remote (network-reachable) / 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-284) exists in github.com/rancher/rancher.
📍 Affected scope
github.com/rancher/rancher — .
🔥 Severity
Severity: ?. 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 'github.com/rancher/rancher' .` 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 'github.com/rancher/rancher' . | 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 `github.com/rancher/rancher` 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。
Affected packages
Go
github.com/rancher/rancher
[{"type":"SEMVER","events":[{"introduced":"0"}]}]
References
- advisory https://github.com/rancher/rancher/security/advisories/GHSA-mq23-vvg7-xfm4
- advisory https://nvd.nist.gov/vuln/detail/CVE-2025-23389
- package https://github.com/rancher/rancher
- web https://github.com/rancher/rancher/pull/48964
- web https://github.com/rancher/rancher/pull/49030
- web https://github.com/rancher/rancher/pull/49031
- web https://github.com/rancher/rancher/commit/4b885322eaf9995a1054bb46e019841653dc0d10
- web https://github.com/rancher/rancher/commit/cda77b743788feb8df8aedf9fd409ed0916a8723
- web https://github.com/rancher/rancher/commit/f36b896a99441985a1658e1b8c504d77e52fee4f
- web https://bugzilla.suse.com/show_bug.cgi?id=CVE-2025-23389
- web https://github.com/rancher/rancher/releases/tag/v2.10.3
- web https://github.com/rancher/rancher/releases/tag/v2.8.13
- web https://github.com/rancher/rancher/releases/tag/v2.9.7
- web https://pkg.go.dev/vuln/GO-2025-3490