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CVE-2026-22251
Information Disclosure in wlc (CVE-2026-22251)
Summary
vulnerability in wlc (CVE-2026-22251). Confidential information can be exposed externally. Exploitable via ``key``. Mitigation: upgrade to `1.17.0` or later.
AI summary snake-internal / snake-material-v2
A vulnerability tracked as **CVE-2026-22251** has been found in wlc.
Attackers can target a specific entry point like ``key`` over the network to misuse the product.
Confidential information can be exposed externally. CVSS score: ?/10.
What to do: upgrade wlc to **1.17.0** or later.
If unsure, ask your IT team or search "wlc CVE-2026-22251" on the vendor's site.
CVE-2026-22251 (wlc) — CWE-200 /
Attack vector: local
Attack surface: `key`
Patched: `1.17.0` — apply immediately
Workaround: Remove unscoped `key` from wlc configuration.
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
**information disclosure** (CWE-200) exists in wlc. Attackers reach the vulnerable code path via ``key`` without authentication.
📍 Affected scope
wlc — . Attack surface: `key`.
🔥 Severity
Severity: ?. Confidential information can be exposed externally
🔧 How to fix
Update to **1.17.0**.
🛡️ Workaround
Workaround: Remove unscoped `key` from wlc configuration.
🔍 Detection
Search webserver/proxy logs for unusual request patterns matching this CVE's known IOCs. Run `grep -r 'wlc' .` 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 'wlc' . | 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 `wlc` 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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5Apply temporary workaround mitigate
Remove unscoped `key` from wlc configuration.パッチが適用されるまでの応急処置として、Remove unscoped `key` from wlc configuration. を実施。回避策の副作用 (機能低下) を確認した上で。
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6Apply patch patch
Upgrade wlc to 1.17.0ステージング環境で 1.17.0 に上げて回帰テスト → 本番反映。回帰テストはアプリの主要ハッピーパスと、Step 3 で見つけた異常検知の続報チェックを含めること。
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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
PyPI
wlc
[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"1.17.0"}]}]
References
- advisory https://nvd.nist.gov/vuln/detail/CVE-2026-22251
- advisory https://github.com/advisories/GHSA-9rp8-h4g8-8766
- package https://github.com/WeblateOrg/wlc
- package https://pypi.org/project/wlc
- web https://github.com/WeblateOrg/wlc/security/advisories/GHSA-9rp8-h4g8-8766
- web https://github.com/WeblateOrg/wlc/pull/1098
- web https://github.com/WeblateOrg/wlc/commit/aafdb507a9e66574ade1f68c50c4fe75dbe80797