{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20888", "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "state": "PUBLISHED", "assignerShortName": "Gitea", "dateReserved": "2026-01-08T23:02:37.542Z", "datePublished": "2026-01-22T22:01:51.214Z", "dateUpdated": "2026-01-23T21:54:14.856Z"}, "containers": {"cna": {"affected": [{"vendor": "Gitea", "product": "Gitea Open Source Git Server", "versions": [{"version": "0", "lessThanOrEqual": "1.25.3", "status": "affected", "versionType": "semver"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-284", "description": "CWE-284: Improper Access Control", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-862", "description": "CWE-862: Missing Authorization", "lang": "en", "type": "CWE"}]}], "references": [{"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-ccq9-c5hv-cf64", "name": "GitHub Security Advisory", "tags": ["vendor-advisory"]}, {"url": "https://github.com/go-gitea/gitea/pull/36341", "name": "GitHub Pull Request #36341", "tags": ["patch"]}, {"url": "https://github.com/go-gitea/gitea/pull/36356", "name": "GitHub Pull Request #36356", "tags": ["patch"]}, {"url": "https://github.com/go-gitea/gitea/releases/tag/v1.25.4", "name": "Gitea v1.25.4 Release", "tags": ["release-notes"]}, {"url": "https://blog.gitea.com/release-of-1.25.4/", "name": "Gitea v1.25.4 Release Blog Post", "tags": ["release-notes"]}], "credits": [{"lang": "en", "value": "spingARbor", "type": "reporter"}], "title": "Gitea Pull Requests Auto-Merge: Read-Only Users Can Cancel Scheduled Auto-Merge via Web Endpoint (Authorization Bypass)", "providerMetadata": {"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "shortName": "Gitea", "dateUpdated": "2026-01-22T22:01:51.214Z"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-01-23T21:09:52.298236Z", "id": "CVE-2026-20888", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-23T21:54:14.856Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 4.3, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "LOW"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-20888", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-23T21:09:52.298236Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-01-23T21:09:48.392Z"}}], "cna": {"title": "Gitea Pull Requests Auto-Merge: Read-Only Users Can Cancel Scheduled Auto-Merge via Web Endpoint (Authorization Bypass)", "credits": [{"lang": "en", "type": "reporter", "value": "spingARbor"}], "affected": [{"vendor": "Gitea", "product": "Gitea Open Source Git Server", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.25.3"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-ccq9-c5hv-cf64", "name": "GitHub Security Advisory", "tags": ["vendor-advisory"]}, {"url": "https://github.com/go-gitea/gitea/pull/36341", "name": "GitHub Pull Request #36341", "tags": ["patch"]}, {"url": "https://github.com/go-gitea/gitea/pull/36356", "name": "GitHub Pull Request #36356", "tags": ["patch"]}, {"url": "https://github.com/go-gitea/gitea/releases/tag/v1.25.4", "name": "Gitea v1.25.4 Release", "tags": ["release-notes"]}, {"url": "https://blog.gitea.com/release-of-1.25.4/", "name": "Gitea v1.25.4 Release Blog Post", "tags": ["release-notes"]}], "descriptions": [{"lang": "en", "value": "Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-284", "description": "CWE-284: Improper Access Control"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-862", "description": "CWE-862: Missing Authorization"}]}], "providerMetadata": {"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "shortName": "Gitea", "dateUpdated": "2026-01-22T22:01:51.214Z"}}}, "cveMetadata": {"cveId": "CVE-2026-20888", "state": "PUBLISHED", "dateUpdated": "2026-01-23T21:54:14.856Z", "dateReserved": "2026-01-08T23:02:37.542Z", "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "datePublished": "2026-01-22T22:01:51.214Z", "assignerShortName": "Gitea"}, "dataVersion": "5.2"}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Gitea does not properly verify authorization when canceling scheduled auto-merges via the web interface. A user with read access to pull requests may be able to cancel auto-merges scheduled by other users."}], "id": "CVE-2026-20888", "lastModified": "2026-01-23T22:16:20.120", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 4.3, "baseSeverity": "MEDIUM", "confidentialityImpact": "LOW", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 1.4, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}]}, "published": "2026-01-22T22:16:17.890", "references": [{"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://blog.gitea.com/release-of-1.25.4/"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/pull/36341"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/pull/36356"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/releases/tag/v1.25.4"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-ccq9-c5hv-cf64"}], "sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-862"}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "type": "Secondary"}]}

{}