{"id":"CVE-2026-45153","state":"PUBLISHED","title":"Nextcloud: PIN bypass in PassCodeActivity via back button","description":"Nextcloud is an open source content collaboration platform. From version 33.0.0 to before version 33.1.0, after unlocking a locked Android phone the back-button could be used to bypass the Nextcloud Files app PIN. This issue has been patched in version 33.1.0.","publishedAt":"2026-06-01T16:37:12.319Z","updatedAt":"2026-06-01T17:53:36.647Z","severity":{"score":4.6,"label":"Medium","version":"3.1","vector":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","source":"GitHub_M"},"assigner":"GitHub_M","products":["nextcloud security-advisories"],"affected":[{"vendor":"nextcloud","product":"security-advisories","versions":[{"version":">= 33.0.0, < 33.1.0","status":"affected"}]}],"references":["https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2w7v-5299-3hw5","https://github.com/nextcloud/android/pull/16896","https://hackerone.com/reports/3625210"],"weaknesses":["CWE-287"],"ingestedAt":"2026-10-29T20:12:07.131Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/45xxx/CVE-2026-45153.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-45153","state":"PUBLISHED","datePublished":"2026-06-01T16:37:12.319Z","dateUpdated":"2026-06-01T17:53:36.647Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-05-08T20:44:38.964Z"},"containers":{"cna":{"title":"Nextcloud: PIN bypass in PassCodeActivity via back button","descriptions":[{"lang":"en","value":"Nextcloud is an open source content collaboration platform. From version 33.0.0 to before version 33.1.0, after unlocking a locked Android phone the back-button could be used to bypass the Nextcloud Files app PIN. This issue has been patched in version 33.1.0."}],"affected":[{"vendor":"nextcloud","product":"security-advisories","versions":[{"version":">= 33.0.0, < 33.1.0","status":"affected"}]}],"references":[{"url":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2w7v-5299-3hw5","name":"https://github.com/nextcloud/security-advisories/security/advisories/GHSA-2w7v-5299-3hw5","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/nextcloud/android/pull/16896","name":"https://github.com/nextcloud/android/pull/16896","tags":["x_refsource_MISC"]},{"url":"https://hackerone.com/reports/3625210","name":"https://hackerone.com/reports/3625210","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"PHYSICAL","availabilityImpact":"NONE","baseScore":4.6,"baseSeverity":"MEDIUM","confidentialityImpact":"HIGH","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:P/AC:H/PR:L/UI:N/S:U/C:H/I:L/A:N","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-287","lang":"en","description":"CWE-287: Improper Authentication","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-06-01T16:37:12.319Z"},"source":{"advisory":"GHSA-2w7v-5299-3hw5","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-06-01T17:53:30.524011Z","id":"CVE-2026-45153","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-06-01T17:53:36.647Z"}}]}}}