CVE-2026-61610 (GCVE-0-2026-61610)

Vulnerability from cvelistv5 – Published: 2026-10-15 16:26 – Updated: 2026-10-15 16:26
VLAI
Title
Lychee: unauthenticated photo starring reveals existence of private photos when photos_star_visibility=anonymous
Summary
Lychee is a free, open-source photo-management tool. Prior to 7.6.1, when photos_star_visibility is set to anonymous, POST /api/v2/Photo::highlight can fetch and modify a photo without confirming that the caller can see it. BaseApiRequest::validateResolved() invokes SetPhotosHighlightedRequest::processValidatedValues() before authorization, and PhotoPolicy::canHighlight() returns true for anonymous callers without a canSee check. An unauthenticated attacker who can guess photo identifiers can distinguish existing private photos through differing success and not-found responses and can change their is_highlighted state, including for photos in private or password-protected albums. The issue is limited to installations using the non-default anonymous star-visibility setting. This issue is fixed in version 7.6.1.
Severity
2.3 (Low)
CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N
CWE
  • CWE-284 - Improper Access Control
Assigner
GitHub_M CNA under the mitre root
CNA scorecard C 72/100 over 7771 records in the last 180 days details
References
Impacted products
Vendor Product Version CPE status
LycheeOrg Lychee Affected: < 7.6.1
guessed Create a notification for this product.
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{
  "containers": {
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        {
          "product": "Lychee",
          "vendor": "LycheeOrg",
          "versions": [
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            }
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          "value": "Lychee is a free, open-source photo-management tool. Prior to 7.6.1, when photos_star_visibility is set to anonymous, POST /api/v2/Photo::highlight can fetch and modify a photo without confirming that the caller can see it. BaseApiRequest::validateResolved() invokes SetPhotosHighlightedRequest::processValidatedValues() before authorization, and PhotoPolicy::canHighlight() returns true for anonymous callers without a canSee check. An unauthenticated attacker who can guess photo identifiers can distinguish existing private photos through differing success and not-found responses and can change their is_highlighted state, including for photos in private or password-protected albums. The issue is limited to installations using the non-default anonymous star-visibility setting. This issue is fixed in version 7.6.1."
        }
      ],
      "metrics": [
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            "attackRequirements": "PRESENT",
            "attackVector": "NETWORK",
            "baseScore": 2.3,
            "baseSeverity": "LOW",
            "privilegesRequired": "LOW",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
            "userInteraction": "NONE",
            "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N",
            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "LOW"
          }
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      ],
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          "descriptions": [
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              "description": "CWE-284: Improper Access Control",
              "lang": "en",
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      "providerMetadata": {
        "dateUpdated": "2026-10-15T16:26:16.585Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-qcqq-p4pq-7r77",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/LycheeOrg/Lychee/security/advisories/GHSA-qcqq-p4pq-7r77"
        },
        {
          "name": "https://github.com/LycheeOrg/Lychee/pull/4449",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LycheeOrg/Lychee/pull/4449"
        },
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          "name": "https://github.com/LycheeOrg/Lychee/commit/fe07567c176bbdcda7b276bb6d664dfcd47a9b00",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LycheeOrg/Lychee/commit/fe07567c176bbdcda7b276bb6d664dfcd47a9b00"
        },
        {
          "name": "https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/LycheeOrg/Lychee/releases/tag/v7.6.1"
        }
      ],
      "source": {
        "advisory": "GHSA-qcqq-p4pq-7r77",
        "discovery": "UNKNOWN"
      },
      "title": "Lychee: unauthenticated photo starring reveals existence of private photos when photos_star_visibility=anonymous"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-61610",
    "datePublished": "2026-10-15T16:26:16.585Z",
    "dateReserved": "2026-07-10T17:36:04.597Z",
    "dateUpdated": "2026-10-15T16:26:16.585Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
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      "date": "2026-10-17",
      "epss": "0.0023",
      "percentile": "0.12903"
    },
    "nvd": {
      "cve": {
        "affected": [
          {
            "affectedData": [
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                "product": "Lychee",
                "vendor": "LycheeOrg",
                "versions": [
                  {
                    "status": "affected",
                    "version": "\u003c 7.6.1"
                  }
                ]
              }
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            "source": "security-advisories@github.com"
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        ],
        "cveTags": [],
        "descriptions": [
          {
            "lang": "en",
            "value": "Lychee is a free, open-source photo-management tool. Prior to 7.6.1, when photos_star_visibility is set to anonymous, POST /api/v2/Photo::highlight can fetch and modify a photo without confirming that the caller can see it. BaseApiRequest::validateResolved() invokes SetPhotosHighlightedRequest::processValidatedValues() before authorization, and PhotoPolicy::canHighlight() returns true for anonymous callers without a canSee check. An unauthenticated attacker who can guess photo identifiers can distinguish existing private photos through differing success and not-found responses and can change their is_highlighted state, including for photos in private or password-protected albums. The issue is limited to installations using the non-default anonymous star-visibility setting. This issue is fixed in version 7.6.1."
          }
        ],
        "id": "CVE-2026-61610",
        "lastModified": "2026-10-15T21:08:49.703",
        "metrics": {
          "cvssMetricV40": [
            {
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                "Recovery": "NOT_DEFINED",
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                "attackRequirements": "PRESENT",
                "attackVector": "NETWORK",
                "availabilityRequirement": "NOT_DEFINED",
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                "exploitMaturity": "NOT_DEFINED",
                "integrityRequirement": "NOT_DEFINED",
                "modifiedAttackComplexity": "NOT_DEFINED",
                "modifiedAttackRequirements": "NOT_DEFINED",
                "modifiedAttackVector": "NOT_DEFINED",
                "modifiedPrivilegesRequired": "NOT_DEFINED",
                "modifiedSubAvailabilityImpact": "NOT_DEFINED",
                "modifiedSubConfidentialityImpact": "NOT_DEFINED",
                "modifiedSubIntegrityImpact": "NOT_DEFINED",
                "modifiedUserInteraction": "NOT_DEFINED",
                "modifiedVulnAvailabilityImpact": "NOT_DEFINED",
                "modifiedVulnConfidentialityImpact": "NOT_DEFINED",
                "modifiedVulnIntegrityImpact": "NOT_DEFINED",
                "privilegesRequired": "LOW",
                "providerUrgency": "NOT_DEFINED",
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                "subConfidentialityImpact": "NONE",
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                "userInteraction": "NONE",
                "valueDensity": "NOT_DEFINED",
                "vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
                "version": "4.0",
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                "vulnConfidentialityImpact": "NONE",
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                "vulnerabilityResponseEffort": "NOT_DEFINED"
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        "references": [
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          }
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            "source": "security-advisories@github.com",
            "type": "Primary"
          }
        ]
      }
    }
  }
}



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