{"id":"CVE-2026-105688","state":"PUBLISHED","title":"Penpot: Team admin can escalate to owner via team invitation (missing owner-role guard on the invitation path)","description":"Penpot is an open-source design and prototyping platform. Prior to 2.18.0, create-team-invitations and the invitation acceptance path allow a non-owner team administrator to assign the owner role because invitation roles are persisted and applied without the role-ceiling check used by update-team-member-role. An administrator can invite another account as an owner, create multiple owners, and then use the new owner account to obtain owner-only control over the team. This issue is fixed in version 2.18.0.","publishedAt":"2026-10-05T19:50:01.439Z","updatedAt":"2026-10-06T13:45:35.634Z","severity":{"score":6.7,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["penpot penpot"],"affected":[{"vendor":"penpot","product":"penpot","versions":[{"version":"< 2.18.0","status":"affected"}]}],"references":["https://github.com/penpot/penpot/security/advisories/GHSA-mx4v-cmxq-644v","https://github.com/penpot/penpot/commit/5efd9cc3c5689485322f57b644b83a3bd2e33cee","https://github.com/penpot/penpot/releases/tag/2.18.0"],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T20:10:23.711Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/105xxx/CVE-2026-105688.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-105688","state":"PUBLISHED","datePublished":"2026-10-05T19:50:01.439Z","dateUpdated":"2026-10-06T13:45:35.634Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-10-05T17:48:58.626Z"},"containers":{"cna":{"title":"Penpot: Team admin can escalate to owner via team invitation (missing owner-role guard on the invitation path)","descriptions":[{"lang":"en","value":"Penpot is an open-source design and prototyping platform. Prior to 2.18.0, create-team-invitations and the invitation acceptance path allow a non-owner team administrator to assign the owner role because invitation roles are persisted and applied without the role-ceiling check used by update-team-member-role. An administrator can invite another account as an owner, create multiple owners, and then use the new owner account to obtain owner-only control over the team. This issue is fixed in version 2.18.0."}],"affected":[{"vendor":"penpot","product":"penpot","versions":[{"version":"< 2.18.0","status":"affected"}]}],"references":[{"url":"https://github.com/penpot/penpot/security/advisories/GHSA-mx4v-cmxq-644v","name":"https://github.com/penpot/penpot/security/advisories/GHSA-mx4v-cmxq-644v","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/penpot/penpot/commit/5efd9cc3c5689485322f57b644b83a3bd2e33cee","name":"https://github.com/penpot/penpot/commit/5efd9cc3c5689485322f57b644b83a3bd2e33cee","tags":["x_refsource_MISC"]},{"url":"https://github.com/penpot/penpot/releases/tag/2.18.0","name":"https://github.com/penpot/penpot/releases/tag/2.18.0","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"HIGH","baseScore":6.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"HIGH","privilegesRequired":"HIGH","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:H/A:H","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","lang":"en","description":"CWE-269: Improper Privilege Management","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-10-05T19:50:01.439Z"},"source":{"advisory":"GHSA-mx4v-cmxq-644v","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/penpot/penpot/security/advisories/GHSA-mx4v-cmxq-644v","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-10-06T13:44:53.635776Z","id":"CVE-2026-105688","options":[{"Exploitation":"poc"},{"Automatable":"no"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-06T13:45:35.634Z"}}]}}}