Reference page — cumulative record through Sunday, October 4, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L N N U L N N 5.3 1.0000 100.0 YES
AFFECTED Product Versions Fixed Jira Server unspecified – — Jira Data Center unspecified – —
TIMELINE Jan 25 Reserved by atlassian Aug 16 Published (CNA: atlassian) Nov 12 Added to CISA KEV, remediation due 2024-12-03
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to read particular files via a path traversal vulnerability in the /WEB-INF/web.xml endpoint. The affected versions are before version 8.5.14, from version 8.6.0 before 8.13.6, and from version 8.14.0 before 8.16.1.
| Date | Event | Detail |
|---|---|---|
| January 25, 2021 | Reserved | Reserved by atlassian |
| August 16, 2021 | Published | Published (CNA: atlassian) |
| November 12, 2024 | KEV ADDED | Added to CISA KEV, remediation due 2024-12-03 |
Authoritative record: CVE-2021-26086 at cve.org
Vendors: atlassian
Weaknesses: CWE-22
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2021-26086 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Sunday, October 4, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.
