{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-58416", "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "state": "PUBLISHED", "assignerShortName": "Gitea", "dateReserved": "2026-06-30T18:57:20.613Z", "datePublished": "2026-08-13T16:44:46.534Z", "dateUpdated": "2026-08-13T18:37:50.990Z"}, "containers": {"cna": {"title": "Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard)", "descriptions": [{"lang": "en", "value": "Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard)"}], "affected": [{"vendor": "Gitea", "product": "Gitea Open Source Git Server", "versions": [{"version": "0", "lessThanOrEqual": "1.26.4", "status": "affected", "versionType": "semver"}], "defaultStatus": "unaffected"}], "problemTypes": [{"descriptions": [{"cweId": "CWE-280", "description": "CWE-280", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-863", "description": "CWE-863", "lang": "en", "type": "CWE"}]}], "references": [{"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-fj8v-hjwv-qm88", "name": "GitHub Security Advisory", "tags": ["vendor-advisory"]}, {"url": "https://github.com/go-gitea/gitea/releases/tag/v1.27.0", "name": "Gitea v1.27.0 Release", "tags": ["release-notes"]}, {"url": "https://blog.gitea.com/gitea-1.27.0-is-released/", "name": "Gitea v1.27.0 Release Blog Post", "tags": ["release-notes"]}], "providerMetadata": {"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "shortName": "Gitea", "dateUpdated": "2026-08-13T16:44:46.534Z"}, "credits": [{"lang": "en", "value": "CassianStarck", "type": "reporter"}], "x_generator": {"engine": "cvelib 1.8.0"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-08-13T18:37:37.811090Z", "id": "CVE-2026-58416", "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": "2026-08-13T18:37:50.990Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "CHANGED", "version": "3.1", "baseScore": 7.1, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "HIGH", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-58416", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-08-13T18:37:37.811090Z"}}}], "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-08-13T18:37:36.221Z"}}], "cna": {"title": "Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard)", "credits": [{"lang": "en", "type": "reporter", "value": "CassianStarck"}], "affected": [{"vendor": "Gitea", "product": "Gitea Open Source Git Server", "versions": [{"status": "affected", "version": "0", "versionType": "semver", "lessThanOrEqual": "1.26.4"}], "defaultStatus": "unaffected"}], "references": [{"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-fj8v-hjwv-qm88", "name": "GitHub Security Advisory", "tags": ["vendor-advisory"]}, {"url": "https://github.com/go-gitea/gitea/releases/tag/v1.27.0", "name": "Gitea v1.27.0 Release", "tags": ["release-notes"]}, {"url": "https://blog.gitea.com/gitea-1.27.0-is-released/", "name": "Gitea v1.27.0 Release Blog Post", "tags": ["release-notes"]}], "x_generator": {"engine": "cvelib 1.8.0"}, "descriptions": [{"lang": "en", "value": "Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard)"}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-280", "description": "CWE-280"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-863", "description": "CWE-863"}]}], "providerMetadata": {"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "shortName": "Gitea", "dateUpdated": "2026-08-13T16:44:46.534Z"}}}, "cveMetadata": {"cveId": "CVE-2026-58416", "state": "PUBLISHED", "dateUpdated": "2026-08-13T18:37:50.990Z", "dateReserved": "2026-06-30T18:57:20.613Z", "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "datePublished": "2026-08-13T16:44:46.534Z", "assignerShortName": "Gitea"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Gitea Open Source Git Server", "vendor": "Gitea", "versions": [{"lessThanOrEqual": "1.26.4", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard)"}], "id": "CVE-2026-58416", "lastModified": "2026-08-26T16:53:48.300", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "LOW", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:L/A:N", "version": "3.1"}, "exploitabilityScore": 1.8, "impactScore": 4.7, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-58416", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-13T18:37:37.811090Z", "version": "2.0.3"}}]}, "published": "2026-08-13T17:17:26.300", "references": [{"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://blog.gitea.com/gitea-1.27.0-is-released/"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/releases/tag/v1.27.0"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-fj8v-hjwv-qm88"}], "sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-280"}, {"lang": "en", "value": "CWE-863"}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "type": "Secondary"}]}

{"bugzilla": {"description": "gitea.dev: Gitea: Information disclosure via Fork-PR Actions task", "id": "2515475", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2515475"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-1220", "details": ["Fork-PR Actions task can read a third private repository via the collaborative-owner branch (missing fork-PR guard)", "A flaw was found in Gitea. The Fork-PR Actions task, which handles pull requests from forked repositories, can be exploited to read data from a third private repository. This occurs due to a missing guard that should prevent unauthorized access via the collaborative-owner branch. A remote attacker could leverage this vulnerability to gain unauthorized access to sensitive information."], "mitigation": {"lang": "en:us", "value": "To mitigate this issue, repository administrators should disable Gitea Actions on affected repositories or restrict pull request workflows from fork repositories by configuring `RUN_WORKFLOWS_FROM_FORK_PULL_REQUESTS` to `false` in the Gitea configuration."}, "name": "CVE-2026-58416", "package_state": [{"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-watcher-rhel9", "product_name": "OpenShift Pipelines"}], "public_date": "2026-08-13T16:44:46Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-58416\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-58416\nhttps://blog.gitea.com/gitea-1.27.0-is-released/\nhttps://github.com/go-gitea/gitea/releases/tag/v1.27.0\nhttps://github.com/go-gitea/gitea/security/advisories/GHSA-fj8v-hjwv-qm88"], "statement": "A flaw was found in Gitea's Actions continuous integration runner logic for pull requests from forked repositories. Due to a missing permission boundary check on collaborative-owner branches, a Gitea Actions workflow triggered by a fork pull request can access unauthorized repository contexts. An authenticated remote user with write access to a fork can exploit this vulnerability to read sensitive data and configuration secrets from a third private repository accessible to the collaborative owner.", "threat_severity": "Moderate"}