CVE-2026-53434: Atlassian BASM (Broken Authentication & Session Management) Apache Tomcat Dependency in Jira Software Data Center and Server
This Atlassian advisory covers CVE-2026-53434 in Jira Data Center and Server and Jira Service Management Data Center and Server.
Key facts
- Vendor rating
- Critical, CVSS 9.1
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Jira Data Center and Server: 11.3.0 to 11.3.10 (LTS); Jira Data Center and Server: 11.2.0 to 11.2.1; Jira Data Center and Server: 11.1.0 to 11.1.1 and 13 more below
- Fixed in
- Jira Data Center and Server: 11.3.11 (LTS) recommended Data Center Only, Jira Data Center and Server: 10.3.25 (LTS) Data Center Only, Jira Service Management Data Center and Server: 11.3.11 (LTS) recommended Data Center Only and 1 more below
- Source published
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
BASM (Broken Authentication & Session Management) Apache Tomcat Dependency in Jira Software Data Center and Server. Listed in Atlassian's Security Bulletin of September 15 2026.
Affected products named by the advisory: Jira Data Center and Server; Jira Service Management Data Center and Server.
Text from the source record.
- Jira Data Center and Server: 11.3.0 to 11.3.10 (LTS)
- Jira Data Center and Server: 11.2.0 to 11.2.1
- Jira Data Center and Server: 11.1.0 to 11.1.1
- Jira Data Center and Server: 11.0.0 to 11.0.1
- Jira Data Center and Server: 10.7.1 to 10.7.4
- Jira Data Center and Server: 10.6.0 to 10.6.1
- Jira Data Center and Server: 10.5.0 to 10.5.1
- Jira Data Center and Server: 10.4.0 to 10.4.1
- Jira Data Center and Server: 10.3.0 to 10.3.24 (LTS)
- Jira Data Center and Server: 10.2.0 to 10.2.1
- Jira Data Center and Server: 10.1.1 to 10.1.2
- Jira Data Center and Server: 9.17.3 to 9.17.5
- Jira Data Center and Server: 9.12.14 to 9.12.38 (LTS)
- Jira Service Management Data Center and Server: 11.3.0 to 11.3.10 (LTS)
- Jira Service Management Data Center and Server: 11.2.0 to 11.2.1
- Jira Service Management Data Center and Server: 11.1.0 to 11.1.1
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2026-53434
Upgrade to a fixed release named by Atlassian:
- Jira Data Center and Server: 11.3.11 (LTS) recommended Data Center Only
- Jira Data Center and Server: 10.3.25 (LTS) Data Center Only
- Jira Service Management Data Center and Server: 11.3.11 (LTS) recommended Data Center Only
- Jira Service Management Data Center and Server: 10.3.25 (LTS) Data Center Only
Vendor guidance
- Upgrade to a fixed version listed by Atlassian: Jira Data Center and Server: 11.3.11 (LTS) recommended Data Center Only; Jira Data Center and Server: 10.3.25 (LTS) Data Center Only; Jira Service Management Data Center and Server: 11.3.11 (LTS) recommended Data Center Only; Jira Service Management Data Center and Server: 10.3.25 (LTS) Data Center Only.
Support dates for the fixed release lines
- Atlassian Jira 11.3: support ends
- Atlassian Jira 10.3: support ends
CVE-2026-53434 in other vendors' advisories
- NetApp: NTAP-20260703-0013, critical severity
- Red Hat: CVE-2026-53434, low severity, fixed in 11.0.23, 10.1.56, 9.0.119 and 31 more
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Atlassian advisories, September 2026All Atlassian advisories
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