Lichess lila before commit 11b4c0f (2025-06-02) contains…
Priority MEDIUM 62CWE-918Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- Low · None · Low
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Lichess lila before commit 11b4c0fb00f0ffd823246f839627005459c8f05c (2025-06-02) contains a Server-Side Request Forgery (SSRF) vulnerability in the game export API. The players parameter is passed directly to an internal HTTP client without validation, allowing remote attackers to force the server to send HTTP requests to arbitrary URLs
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00344 28th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-52186
- 2026-10-03 Alias added: GHSA-85hq-hqhm-3jf2
References
More Lichess Lila vulnerabilities
- TI-2026-27361 lichess.org has an Unsanitized Stream Title Injection on /streamer CVSS 4.0MEDIUM 5.3
Sources
- CVE-2025-52186 · CVE Program
- CVE-2025-52186 · NVD
- FIRST EPSS
- GHSA-85hq-hqhm-3jf2 · GitHub Advisory Database · CC BY 4.0
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