{"id":"CVE-2026-42571","state":"PUBLISHED","title":"Privilege Escalation Attack affecting Pelican Web UI","description":"Pelican is a platform for creating data federations. From versions 7.21.0 to before 7.21.5, 7.22.0 to before 7.22.3, 7.23.0 to before 7.23.3, and 7.24.0 to before 7.24.2, there is a a privilege escalation vulnerability affecting Pelican's Web User Interface (WebUI). This attack allows any user authenticated to the WebUI via OAuth to gain admin privileges under certain configurations. This issue has been patched in versions 7.21.5, 7.22.3, 7.23.3, and 7.24.2.","publishedAt":"2026-05-09T19:19:36.522Z","updatedAt":"2026-05-12T02:27:16.826Z","severity":{"score":9,"label":"Critical","version":"4.0","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","source":"GitHub_M"},"assigner":"GitHub_M","products":["PelicanPlatform pelican"],"affected":[{"vendor":"PelicanPlatform","product":"pelican","versions":[{"version":">= 7.21.0, < 7.21.5","status":"affected"},{"version":">= 7.22.0, < 7.22.3","status":"affected"},{"version":">= 7.23.0, < 7.23.3","status":"affected"},{"version":">= 7.24.0, < 7.24.2","status":"affected"}]}],"references":["https://github.com/PelicanPlatform/pelican/security/advisories/GHSA-rpfr-x88x-xwcw","https://github.com/PelicanPlatform/pelican/commit/7f73b9c3e677a0ae4a0ec465c5d98bb8bd948854"],"weaknesses":["CWE-863"],"ingestedAt":"2026-10-29T20:11:57.932Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/42xxx/CVE-2026-42571.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-42571","state":"PUBLISHED","datePublished":"2026-05-09T19:19:36.522Z","dateUpdated":"2026-05-12T02:27:16.826Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-04-28T17:26:12.084Z"},"containers":{"cna":{"title":"Privilege Escalation Attack affecting Pelican Web UI","descriptions":[{"lang":"en","value":"Pelican is a platform for creating data federations. From versions 7.21.0 to before 7.21.5, 7.22.0 to before 7.22.3, 7.23.0 to before 7.23.3, and 7.24.0 to before 7.24.2, there is a a privilege escalation vulnerability affecting Pelican's Web User Interface (WebUI). This attack allows any user authenticated to the WebUI via OAuth to gain admin privileges under certain configurations. This issue has been patched in versions 7.21.5, 7.22.3, 7.23.3, and 7.24.2."}],"affected":[{"vendor":"PelicanPlatform","product":"pelican","versions":[{"version":">= 7.21.0, < 7.21.5","status":"affected"},{"version":">= 7.22.0, < 7.22.3","status":"affected"},{"version":">= 7.23.0, < 7.23.3","status":"affected"},{"version":">= 7.24.0, < 7.24.2","status":"affected"}]}],"references":[{"url":"https://github.com/PelicanPlatform/pelican/security/advisories/GHSA-rpfr-x88x-xwcw","name":"https://github.com/PelicanPlatform/pelican/security/advisories/GHSA-rpfr-x88x-xwcw","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/PelicanPlatform/pelican/commit/7f73b9c3e677a0ae4a0ec465c5d98bb8bd948854","name":"https://github.com/PelicanPlatform/pelican/commit/7f73b9c3e677a0ae4a0ec465c5d98bb8bd948854","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV4_0":{"attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"PRESENT","privilegesRequired":"LOW","userInteraction":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","subAvailabilityImpact":"HIGH","baseScore":9,"baseSeverity":"CRITICAL","vectorString":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","version":"4.0"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-863","lang":"en","description":"CWE-863: Incorrect Authorization","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-05-09T19:19:36.522Z"},"source":{"advisory":"GHSA-rpfr-x88x-xwcw","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-05-12T02:26:46.722258Z","id":"CVE-2026-42571","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"total"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-05-12T02:27:16.826Z"}}]}}}