CVE-2026-20904

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-20904", "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "state": "PUBLISHED", "assignerShortName": "Gitea", "dateReserved": "2026-01-08T23:02:37.537Z", "datePublished": "2026-01-22T22:01:51.762Z", "dateUpdated": "2026-01-23T21:53:53.397Z"}, "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 validate ownership when toggling OpenID URI visibility. An authenticated user may be able to change the visibility settings of other users' OpenID identities."}], "problemTypes": [{"descriptions": [{"cweId": "CWE-284", "description": "CWE-284: Improper Access Control", "lang": "en", "type": "CWE"}]}, {"descriptions": [{"cweId": "CWE-639", "description": "CWE-639: Authorization Bypass Through User-Controlled Key", "lang": "en", "type": "CWE"}]}], "references": [{"url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-jrpc-w85r-hgqx", "name": "GitHub Security Advisory", "tags": ["vendor-advisory"]}, {"url": "https://github.com/go-gitea/gitea/pull/36346", "name": "GitHub Pull Request #36346", "tags": ["patch"]}, {"url": "https://github.com/go-gitea/gitea/pull/36361", "name": "GitHub Pull Request #36361", "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: Broken access control in OpenID visibility toggle enables cross-user visibility changes", "providerMetadata": {"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "shortName": "Gitea", "dateUpdated": "2026-01-22T22:01:51.762Z"}}, "adp": [{"metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"timestamp": "2026-01-23T17:52:05.088654Z", "id": "CVE-2026-20904", "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": "2026-01-23T21:53:53.397Z"}}]}}

{"dataType": "CVE_RECORD", "containers": {"cna": {"title": "Gitea: Broken access control in OpenID visibility toggle enables cross-user visibility changes", "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-jrpc-w85r-hgqx", "name": "GitHub Security Advisory", "tags": ["vendor-advisory"]}, {"url": "https://github.com/go-gitea/gitea/pull/36346", "name": "GitHub Pull Request #36346", "tags": ["patch"]}, {"url": "https://github.com/go-gitea/gitea/pull/36361", "name": "GitHub Pull Request #36361", "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 validate ownership when toggling OpenID URI visibility. An authenticated user may be able to change the visibility settings of other users' OpenID identities."}], "problemTypes": [{"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-284", "description": "CWE-284: Improper Access Control"}]}, {"descriptions": [{"lang": "en", "type": "CWE", "cweId": "CWE-639", "description": "CWE-639: Authorization Bypass Through User-Controlled Key"}]}], "providerMetadata": {"orgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "shortName": "Gitea", "dateUpdated": "2026-01-22T22:01:51.762Z"}}, "adp": [{"title": "CISA ADP Vulnrichment", "metrics": [{"cvssV3_1": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 6.5, "attackVector": "NETWORK", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}}, {"other": {"type": "ssvc", "content": {"id": "CVE-2026-20904", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-01-23T17:52:05.088654Z"}}}], "providerMetadata": {"shortName": "CISA-ADP", "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "dateUpdated": "2026-01-23T17:52:26.545Z"}}]}, "cveMetadata": {"cveId": "CVE-2026-20904", "state": "PUBLISHED", "dateUpdated": "2026-01-22T22:01:51.762Z", "dateReserved": "2026-01-08T23:02:37.537Z", "assignerOrgId": "88ee5874-cf24-4952-aea0-31affedb7ff2", "datePublished": "2026-01-22T22:01:51.762Z", "assignerShortName": "Gitea"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Gitea Open Source Git Server", "vendor": "Gitea", "versions": [{"lessThanOrEqual": "1.25.3", "status": "affected", "version": "0", "versionType": "semver"}]}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2"}], "configurations": [{"nodes": [{"cpeMatch": [{"criteria": "cpe:2.3:a:gitea:gitea:*:*:*:*:*:-:*:*", "matchCriteriaId": "DFCB7D74-331D-4582-AB41-113A25BE8FAA", "versionEndExcluding": "1.25.4", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Gitea does not properly validate ownership when toggling OpenID URI visibility. An authenticated user may be able to change the visibility settings of other users' OpenID identities."}, {"lang": "es", "value": "Gitea no valida correctamente la titularidad al alternar la visibilidad de la URI de OpenID. Un usuario autenticado podr\u00eda cambiar la configuraci\u00f3n de visibilidad de las identidades OpenID de otros usuarios."}], "id": "CVE-2026-20904", "lastModified": "2026-06-17T10:18:00.723", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-20904", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-01-23T17:52:05.088654Z", "version": "2.0.3"}}]}, "published": "2026-01-22T22:16:19.130", "references": [{"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "tags": ["Release Notes"], "url": "https://blog.gitea.com/release-of-1.25.4/"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/go-gitea/gitea/pull/36346"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "tags": ["Issue Tracking", "Patch"], "url": "https://github.com/go-gitea/gitea/pull/36361"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "tags": ["Release Notes"], "url": "https://github.com/go-gitea/gitea/releases/tag/v1.25.4"}, {"source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "tags": ["Broken Link"], "url": "https://github.com/go-gitea/gitea/security/advisories/GHSA-jrpc-w85r-hgqx"}], "sourceIdentifier": "88ee5874-cf24-4952-aea0-31affedb7ff2", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-284"}, {"lang": "en", "value": "CWE-639"}], "source": "88ee5874-cf24-4952-aea0-31affedb7ff2", "type": "Secondary"}]}

{"bugzilla": {"description": "gitea: Gitea: Broken access control in OpenID visibility toggle enables cross-user visibility changes", "id": "2432217", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2432217"}, "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:N/I:H/A:N", "status": "draft"}, "cwe": "(CWE-284|CWE-639)", "details": ["Gitea does not properly validate ownership when toggling OpenID URI visibility. An authenticated user may be able to change the visibility settings of other users' OpenID identities."], "mitigation": {"lang": "en:us", "value": "Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base or stability."}, "name": "CVE-2026-20904", "package_state": [{"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-opc-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-cli-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-cli-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-controller-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-controller-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-watcher-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-watcher-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-webhook-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-webhook-rhel9", "product_name": "OpenShift Pipelines"}], "public_date": "2026-01-22T22:01:51Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-20904\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-20904\nhttps://blog.gitea.com/release-of-1.25.4/\nhttps://github.com/go-gitea/gitea/pull/36346\nhttps://github.com/go-gitea/gitea/pull/36361\nhttps://github.com/go-gitea/gitea/releases/tag/v1.25.4\nhttps://github.com/go-gitea/gitea/security/advisories/GHSA-jrpc-w85r-hgqx"], "threat_severity": "Moderate"}

{"analysis": {"en": {"generated_at": "2026-04-18T15:22:18.565746+00:00", "value": {"mitigation_remediation": ["Upgrade Gitea to version 1.25.4 or later, which includes the fix for the OpenID visibility toggle.", "If an upgrade cannot be applied immediately, configure all OpenID URIs to be private or disable the visibility toggle feature to prevent unauthorized changes.", "Verify that ordinary users can no longer modify the visibility of other users\u2019 OpenID identities by testing the UI or using API calls with a standard account."], "summary": {"action": "Immediate Patch", "impact": "Unauthorized OpenID visibility modification"}, "threat_synthesis": {"affected_systems": "Gitea Open Source Git Server versions without the 1.25.4 patch. Versions prior to the release that fixes the ownership validation are at risk. No specific version range is listed in the CNA data, so all installations before the patch are susceptible.", "description_and_impact": "Gitea fails to enforce proper ownership checks when an authenticated user toggles the visibility of an OpenID URI. As a result, a user can alter the visibility settings of another user\u2019s OpenID identity, potentially exposing or concealing that identifier from unintended audiences. This vulnerability represents a broken access control flaw (CWE\u2011284) combined with an authority misuse issue (CWE\u2011639). The impact is the unauthorized manipulation of user identity exposure, which can lead to privacy violations and weaken the trust model of the platform. The CVE description does not indicate any code execution or data exfiltration beyond visibility changes.", "risk_and_exploitability": "The CVSS score of 6.5 classifies the vulnerability as medium severity. The EPSS score is below 1%, indicating a very low probability of exploitation in the wild, and the issue is not recorded in the CISA KEV catalog. The likely attack vector requires the attacker to be an authenticated user on the target system; no remote code execution or unauthenticated access is required. Nevertheless, the impact on user privacy and trust warrants prompt attention."}}}}, "created": "2026-01-23T10:27:10.485448+00:00", "updated": "2026-04-18T15:30:03.955403+00:00", "vendors": ["gitea", "gitea$PRODUCT$gitea"]}