{"schema_version":"2","view":"grouped","data":[{"id":2648,"cve_ids":["CVE-2021-26085"],"payload":{"kind":"advisory","title":"Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability","summary":"Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a pre-authorization arbitrary file read vulnerability in the /s/ endpoint. CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2021-26085","products":[{"name":{"value":"Confluence Server","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2021-26085","aliases":["CVE-2021-26085"],"affected":[],"modified":"2022-03-28T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-425"],"cveID":"CVE-2021-26085","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-26085","dueDate":"2022-04-18","product":"Confluence Server","dateAdded":"2022-03-28","vendorProject":"Atlassian","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a pre-authorization arbitrary file read vulnerability in the /s/ endpoint.","vulnerabilityName":"Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability","knownRansomwareCampaignUse":"Known"}},"related_cves":[{"value":"CVE-2021-26085","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:d8e3cb4f-4b3c-40e4-9b4f-4b7b004fef7e","priority":{"reasons":["known_exploited"],"severity":"unknown","linked_cves":[],"fix_available":false,"known_exploited":true,"publisher_severity":"unknown"},"revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-26085","advisory_id":"d8e3cb4f-4b3c-40e4-9b4f-4b7b004fef7e","event_types":["advisory"],"published_at":"2026-10-24T21:22:12.30437+00:00","technologies":["confluence-server","core-kev"],"context_update":false,"extraction_method":"structured","source_published_at":"2022-03-28T00:00:00+00:00","detail_url":"/advisories/advisory%3Ad8e3cb4f-4b3c-40e4-9b4f-4b7b004fef7e","group":{"id":"advisory:d8e3cb4f-4b3c-40e4-9b4f-4b7b004fef7e","revision":1,"primary_event_id":2657,"change":"published","superseded_by":[],"changed":{"id":2657,"cve_ids":["CVE-2021-26085"],"payload":{"kind":"advisory","title":"Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability","summary":"Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a pre-authorization arbitrary file read vulnerability in the /s/ endpoint. CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2021-26085","products":[{"name":{"value":"Confluence Server","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2021-26085","aliases":["CVE-2021-26085"],"affected":[],"modified":"2022-03-28T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-425"],"cveID":"CVE-2021-26085","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-26085","dueDate":"2022-04-18","product":"Confluence Server","dateAdded":"2022-03-28","vendorProject":"Atlassian","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a pre-authorization arbitrary file read vulnerability in the /s/ endpoint.","vulnerabilityName":"Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability","knownRansomwareCampaignUse":"Known"}},"related_cves":[{"value":"CVE-2021-26085","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:d8e3cb4f-4b3c-40e4-9b4f-4b7b004fef7e","priority":{"reasons":["known_exploited"],"severity":"unknown","linked_cves":[],"fix_available":false,"known_exploited":true,"publisher_severity":"unknown"},"revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-26085","advisory_id":"d8e3cb4f-4b3c-40e4-9b4f-4b7b004fef7e","event_types":["advisory"],"published_at":"2026-10-24T21:22:12.30437+00:00","technologies":["confluence-server","core-kev"],"context_update":false,"extraction_method":"structured","source_published_at":"2022-03-28T00:00:00+00:00","detail_url":"/events/2657"},"members":[{"id":2657,"cve_ids":["CVE-2021-26085"],"payload":{"kind":"advisory","title":"Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability","summary":"Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a pre-authorization arbitrary file read vulnerability in the /s/ endpoint. CISA required action: Apply updates per vendor instructions.","evidence":"kev:CVE-2021-26085","products":[{"name":{"value":"Confluence Server","evidence":"/product"},"prerequisites":[],"fixed_versions":[],"affected_versions":[]}],"severity":"unknown","structured":{"id":"CVE-2021-26085","aliases":["CVE-2021-26085"],"affected":[],"modified":"2022-03-28T00:00:00.000Z","provider":"kev","references":["https://www.cisa.gov/known-exploited-vulnerabilities-catalog"],"exploitation":{"cwes":["CWE-425"],"cveID":"CVE-2021-26085","notes":"https://nvd.nist.gov/vuln/detail/CVE-2021-26085","dueDate":"2022-04-18","product":"Confluence Server","dateAdded":"2022-03-28","vendorProject":"Atlassian","requiredAction":"Apply updates per vendor instructions.","known_exploited":true,"shortDescription":"Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a pre-authorization arbitrary file read vulnerability in the /s/ endpoint.","vulnerabilityName":"Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability","knownRansomwareCampaignUse":"Known"}},"related_cves":[{"value":"CVE-2021-26085","evidence":"/cveID"}],"security_relevant":true,"severity_evidence":null},"group_id":"advisory:d8e3cb4f-4b3c-40e4-9b4f-4b7b004fef7e","priority":{"reasons":["known_exploited"],"severity":"unknown","linked_cves":[],"fix_available":false,"known_exploited":true,"publisher_severity":"unknown"},"revision":1,"source_id":"core-kev","source_url":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog?search_api_fulltext=CVE-2021-26085","advisory_id":"d8e3cb4f-4b3c-40e4-9b4f-4b7b004fef7e","event_types":["advisory"],"published_at":"2026-10-24T21:22:12.30437+00:00","technologies":["confluence-server","core-kev"],"context_update":false,"extraction_method":"structured","source_published_at":"2022-03-28T00:00:00+00:00","detail_url":"/events/2657"}]}}],"next_after":2648,"next_before":2648}