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CVE-2025-52186

Medium

Description

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

SeverityMedium
CVSS6.5
Exploit probability—
ProductLichess Lila
PublishedNov 13, 2025
First seenNov 13, 2025
Weakness typeCWE-918Server-side request forgery (SSRF)

How to fix

Update
  • lichess lila2025-06-02 or later

Affected products

ProductAffected versionsFixed in
lichess lilav < 2025-06-022025-06-02

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