Vendor
Atlassian vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 25 vulnerabilities in Atlassian: 2 in the last 7 days and 8 in the last 90 days, 13 of them critical and 13 exploited in the wild. The most recent, CVE-2026-77270, was published on 22 September 2026. 4 technologies have a page of their own.
- Last 7 days
- 2
- Last 90 days
- 8
- Critical, all time
- 13
- Exploited in the wild
- 13
About Atlassian
An Australian software company that develops products for software developers, project managers, and other software development teams.
Atlassian technologies
Latest Atlassian vulnerabilities
- CVE-2026-77270: MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0, the…mediumCVSS 6.5EPSS 0.4%
- CVE-2026-77265: MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira). Prior to 0.22.0…mediumCVSS 5.9EPSS 0.3%
- CVE-2026-21588: Atlassian Confluence Data Center DoS in authenticated request handlinginfoCVSS 7.1EPSS 0.3%
- CVE-2026-21587: Atlassian Jira Service Management Data Center improper authorizationinfoCVSS 7.1EPSS 0.3%
- CVE-2026-21586: Atlassian Confluence Data Center improper authorizationinfoCVSS 7.1EPSS 0.3%
- CVE-2026-21579: Atlassian Confluence Data Center information disclosureinfoCVSS 8.2
- CVE-2026-21577: Atlassian Confluence Data Center denial of serviceinfoCVSS 7.1
- CVE-2026-21575: Atlassian Sourcetree remote code executionhighCVSS 7.1
- CVE-2026-21570: Atlassian Bamboo Data Center RCE in Apache StrutshighCVSS 8.8EPSS 0.6%
- CVE-2021-26086: Atlassian Jira Server and Data Center Path Traversal Vulnerabilitycriticalexploited in the wildCVSS 5.3
- CVE-2023-22527: Atlassian Confluence Data Center and Server Template Injection Vulnerabilitycriticalexploited in the wildCVSS 10
- CVE-2023-22518: Atlassian Confluence Data Center and Server Improper Authorization Vulnerabilitycriticalexploited in the wildCVSS 10
- CVE-2023-22515: Atlassian Confluence Data Center and Server Broken Access Control Vulnerabilitycriticalexploited in the wildCVSS 10
- CVE-2022-36804: Atlassian Bitbucket Server and Data Center Command Injection Vulnerabilitycriticalexploited in the wildCVSS 8.8
- CVE-2022-26138: Atlassian Questions For Confluence App Hard-coded Credentials Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2022-26134: Atlassian Confluence Server and Data Center Remote Code Execution Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2021-26073: Atlassian Connect Express broken JWT authenticationlowCVSS 3.1EPSS 0.9%
- CVE-2021-26085: Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerabilitycriticalexploited in the wildCVSS 5.3
- CVE-2019-11581: Atlassian Jira Server and Data Center Server-Side Template Injection Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2019-3398: Atlassian Confluence Server and Data Center Path Traversal Vulnerabilitycriticalexploited in the wildCVSS 8.8
- CVE-2019-3396: Atlassian Confluence Server and Data Center Server-Side Template Injection Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2021-26084: Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2019-11580: Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2016-6668: Atlassian HipChat Integration Plugin secret key disclosurehighCVSS 7.5
- CVE-2016-6283: Atlassian Confluence persistent XSS in attachment propertiesmediumCVSS 6.1
Most severe Atlassian vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2023-22527: Atlassian Confluence Data Center and Server Template Injection Vulnerabilitycriticalexploited in the wildCVSS 10
- CVE-2023-22518: Atlassian Confluence Data Center and Server Improper Authorization Vulnerabilitycriticalexploited in the wildCVSS 10
- CVE-2023-22515: Atlassian Confluence Data Center and Server Broken Access Control Vulnerabilitycriticalexploited in the wildCVSS 10
- CVE-2022-26138: Atlassian Questions For Confluence App Hard-coded Credentials Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2022-26134: Atlassian Confluence Server and Data Center Remote Code Execution Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2019-11581: Atlassian Jira Server and Data Center Server-Side Template Injection Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2019-11580: Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2019-3396: Atlassian Confluence Server and Data Center Server-Side Template Injection Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2021-26084: Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerabilitycriticalexploited in the wildCVSS 9.8
- CVE-2022-36804: Atlassian Bitbucket Server and Data Center Command Injection Vulnerabilitycriticalexploited in the wildCVSS 8.8
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 3 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 3 | 0 | |
| 21 Sep 2026 | 2 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/vendors/atlassian.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Atlassian vulnerabilities", https://junglewise.ai/threats/vendors/atlassian, 26 September 2026.