CVE-2026-61611

HIGH 7.5

Lychee: Missing rate limiting on album password unlock endpoint allows brute-force attacks

CVSS Score

7.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-307
Vendor	lycheeorg
Product	lychee
Published	Oct 15, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

LycheeOrg / Lychee

< 7.6.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

github.com: https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-48vf-fwx6-2ph6 github.com: https://github.com/LycheeOrg/Lychee/pull/4448 github.com: https://github.com/LycheeOrg/Lychee/commit/592291458a3373114a21412956fd23cfcda32aba github.com: https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.1