Lychee: Missing rate limiting on album password unlock endpoint allows brute-force attacks
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-61611
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 8 Nov 2026, 01:19 UTC · Revision 1
Source evidence
Lychee: Missing rate limiting on album password unlock endpoint allows brute-force attacks
core-osv · Original sourcePublished 15 Oct 2026, 16:25 UTC
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.
osv:CVE-2026-61611
Complete source record
{
"id": "b9927394f33afd67e3186d1eadd61146df2ff36ed2391ad4fb09b7eb98fca8b6",
"url": "https://osv.dev/vulnerability/CVE-2026-61611",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Lychee: Missing rate limiting on album password unlock endpoint allows brute-force attacks",
"summary": "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.",
"evidence": "osv:CVE-2026-61611",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-61611",
"aliases": [
"CVE-2026-61611",
"GHSA-48vf-fwx6-2ph6"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/lycheeorg/lychee",
"type": "GIT",
"events": [
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"introduced": "0"
},
{
"fixed": "7434aad416d3304fd0910059d43a6c87d5ccfca9"
},
{
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}
],
"database_specific": {
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{
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"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
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{
"range": [
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],
"source": "REFERENCES_COMMIT"
},
{
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],
"source": "REFERENCES_TAG",
"original_tag": "v7.6.1"
}
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"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-61611.json"
}
}
],
"modified": "2026-10-31T02:30:44.613632929Z",
"provider": "osv",
"references": [
"https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.1",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61611.json",
"https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-48vf-fwx6-2ph6",
"https://nvd.nist.gov/vuln/detail/CVE-2026-61611",
"https://github.com/LycheeOrg/Lychee/commit/592291458a3373114a21412956fd23cfcda32aba",
"https://github.com/LycheeOrg/Lychee/pull/4448"
],
"provider_metadata": {
"cwe_ids": [
"CWE-307"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/61xxx/CVE-2026-61611.json"
}
},
"related_cves": [
{
"value": "CVE-2026-61611",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 521285,
"published_at": "2026-10-15T16:25:24.968+00:00"
}