Lychee is a free, open-source photo-management tool. Prior to 7.6.1, POST /api/v2/Album::unlock has no throttle, attempt counter, backoff, CAPTCHA, or lockout. UnlockAlbumRequest::authorize() permits any caller to submit attempts, and app/Actions/Album/Unlock.php verifies each guess with Hash::check without limiting repeated failures. A remote unauthenticated attacker who knows or can obtain an album identifier can automate password guesses against a password-protected album and, if the password is recovered, gain access to its private photo collection. This issue is fixed in version 7.6.1.
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Fixes

Solution

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Workaround

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History

Thu, 15 Oct 2026 16:45:00 +0000

Type Values Removed Values Added
Description Lychee is a free, open-source photo-management tool. Prior to 7.6.1, POST /api/v2/Album::unlock has no throttle, attempt counter, backoff, CAPTCHA, or lockout. UnlockAlbumRequest::authorize() permits any caller to submit attempts, and app/Actions/Album/Unlock.php verifies each guess with Hash::check without limiting repeated failures. A remote unauthenticated attacker who knows or can obtain an album identifier can automate password guesses against a password-protected album and, if the password is recovered, gain access to its private photo collection. This issue is fixed in version 7.6.1.
Title Lychee: Missing rate limiting on album password unlock endpoint allows brute-force attacks
Weaknesses CWE-307
References
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-10-15T16:25:24.968Z

Reserved: 2026-07-10T17:36:04.598Z

Link: CVE-2026-61611

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-15T17:17:26.537

Modified: 2026-10-15T17:17:26.537

Link: CVE-2026-61611

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses