CVE-2026-61838

Lychee: Album password bypass in ZIP downloads

HIGH
8.2
CVSS Score
Published: October 15, 2026 at 04:32 PM UTC
Updated: October 15, 2026 at 09:08 PM UTC
1 product affected across 1 vendorLychee

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Severity
HIGH8.2
Exploit prediction
EPSS 0.4%
SSVC
PoC

Description

Lychee is a free, open-source photo-management tool. Prior to 7.6.3, GET /api/v2/Zip authorizes album and photo archives through AlbumPolicy::canDownload() and PhotoPolicy::canDownload() without first enforcing AlbumPolicy::canAccess(). For a public, password-protected album with grants_download enabled, an unauthenticated attacker who knows the shared album identifier can download a ZIP archive without supplying the password or unlocking the album, even though browsing endpoints deny access. The archive exposes the album's photos and can include full-resolution originals and associated metadata when grants_full_photo_access is enabled. This issue is fixed in version 7.6.3.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 7.6.3

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

8.2HIGHGitHub_M
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-285CWE-639

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