# Atlassian vulnerabilities Source: https://junglewise.ai/threats/vendors/atlassian Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/vendors/atlassian.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 40 vulnerabilities in Atlassian: 0 in the last 7 days and 7 in the last 90 days, 14 of them critical and 14 exploited in the wild. The most recent, CVE-2026-21589, was published on 5 October 2026. Nothing in the last four weeks, down from 6 vulnerabilities in the four before. 0 critical against 1, 0 exploited in the wild against 1. 7 technologies have a page of their own. ## Counts - Last 7 days: 0 - Last 30 days: 0 - Last 90 days: 7 - All time: 40 (14 critical, 14 exploited in the wild) ## About Atlassian An Australian software company that develops products for software developers, project managers, and other software development teams. ## Latest Atlassian vulnerabilities - [CVE-2026-21589: Atlassian Data Center arbitrary file access without authentication](https://junglewise.ai/threats/cve-2026-21589-h3-summary-this-is-a-vulnerability-in-bitbucket-data-center) (critical, exploited in the wild, published 5 Oct 2026) - [CVE-2026-77270: Atlassian MCP arbitrary file read via upload attachment tools](https://junglewise.ai/threats/cve-2026-77270-atlassian-mcp-arbitrary-file-read-via-upload-attachment-tools) (medium, CVSS 6.5, published 22 Sep 2026) - [CVE-2026-77265: Atlassian MCP Server SSRF via DNS rebinding in header authentication](https://junglewise.ai/threats/cve-2026-77265-atlassian-mcp-server-ssrf-via-dns-rebinding-in-header) (medium, CVSS 5.9, published 22 Sep 2026) - [CVE-2026-21588: Atlassian Confluence Data Center DoS in authenticated request handling](https://junglewise.ai/threats/cve-2026-21588-atlassian-confluence-data-center-dos-in-authenticated-request) (info, CVSS 7.1, published 15 Sep 2026) - [CVE-2026-21587: Atlassian Jira Service Management Data Center improper authorization](https://junglewise.ai/threats/cve-2026-21587-atlassian-jira-service-management-data-center-improper) (info, CVSS 7.1, published 15 Sep 2026) - [CVE-2026-21586: Atlassian Confluence Data Center improper authorization](https://junglewise.ai/threats/cve-2026-21586-atlassian-confluence-data-center-improper-authorization) (info, CVSS 7.1, published 15 Sep 2026) - [CVE-2026-21584: This High severity Improper Authorization vulnerability was introduced in versions 10.0.0, 10.1.0, 10.2.0, 11.0.0…](https://junglewise.ai/threats/cve-2026-21584-this-high-severity-improper-authorization-vulnerability-was) (high, CVSS 8.1, published 18 Aug 2026) - [CVE-2026-21579: Atlassian Confluence Data Center information disclosure](https://junglewise.ai/threats/cve-2026-21579-atlassian-confluence-data-center-information-disclosure) (info, CVSS 8.2, published 21 Jul 2026) - [CVE-2026-21577: Atlassian Confluence Data Center denial of service](https://junglewise.ai/threats/cve-2026-21577-atlassian-confluence-data-center-denial-of-service) (info, CVSS 7.1, published 21 Jul 2026) - [CVE-2026-21575: Atlassian Sourcetree remote code execution](https://junglewise.ai/threats/cve-2026-21575-atlassian-sourcetree-remote-code-execution) (high, CVSS 7.1, published 21 Jul 2026) - [CVE-2026-21571: This Critical severity OS Command Injection vulnerability was introduced in versions 9.6.0, 10.0.0, 10.1.0, 10.2.0…](https://junglewise.ai/threats/cve-2026-21571-this-critical-severity-os-command-injection-vulnerability-was) (high, CVSS 8.8, published 21 Apr 2026) - [CVE-2026-21570: Atlassian Bamboo Data Center RCE in Apache Struts](https://junglewise.ai/threats/cve-2026-21570-atlassian-bamboo-data-center-rce-in-apache-struts) (high, CVSS 8.8, published 17 Mar 2026) - [CVE-2025-22178: Jira Align is vulnerable to an authorization issue. A low-privilege user can access unexpected endpoints that disclose…](https://junglewise.ai/threats/cve-2025-22178-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 4.3, published 22 Oct 2025) - [CVE-2025-22177: Jira Align is vulnerable to an authorization issue. A low-privilege user can access unexpected endpoints that disclose…](https://junglewise.ai/threats/cve-2025-22177-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 4.3, published 22 Oct 2025) - [CVE-2025-22176: Jira Align is vulnerable to an authorization issue. A low-privilege user can access unexpected endpoints that disclose…](https://junglewise.ai/threats/cve-2025-22176-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 4.3, published 22 Oct 2025) - [CVE-2025-22175: Jira Align is vulnerable to an authorization issue. A low-privilege user can access unexpected endpoints that disclose…](https://junglewise.ai/threats/cve-2025-22175-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 5.4, published 22 Oct 2025) - [CVE-2025-22174: Jira Align is vulnerable to an authorization issue. A low-privilege user can access unexpected endpoints that disclose…](https://junglewise.ai/threats/cve-2025-22174-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 4.3, published 22 Oct 2025) - [CVE-2025-22173: Jira Align is vulnerable to an authorization issue. A low-privilege user can access unexpected endpoints that disclose…](https://junglewise.ai/threats/cve-2025-22173-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 4.3, published 22 Oct 2025) - [CVE-2025-22172: Jira Align is vulnerable to an authorization issue. A low-privilege user can access unexpected endpoints that disclose…](https://junglewise.ai/threats/cve-2025-22172-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 4.3, published 22 Oct 2025) - [CVE-2025-22171: Jira Align is vulnerable to an authorization issue. A low-privilege user is able to alter the private checklists of other…](https://junglewise.ai/threats/cve-2025-22171-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 4.3, published 22 Oct 2025) - [CVE-2025-22170: Jira Align is vulnerable to an authorization issue. A low-privilege user without sufficient privileges to perform an…](https://junglewise.ai/threats/cve-2025-22170-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 4.3, published 22 Oct 2025) - [CVE-2025-22169: Jira Align is vulnerable to an authorization issue. A low-privilege user can access unexpected endpoints that disclose…](https://junglewise.ai/threats/cve-2025-22169-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 5.4, published 22 Oct 2025) - [CVE-2025-22168: Jira Align is vulnerable to an authorization issue. A low-privilege user can access unexpected endpoints that disclose…](https://junglewise.ai/threats/cve-2025-22168-jira-align-is-vulnerable-to-an-authorization-issue-a-low) (medium, CVSS 4.3, published 22 Oct 2025) - [CVE-2025-22167: This High severity Path Traversal (Arbitrary Write) vulnerability was introduced in versions: 9.12.0, 10.3.0 and…](https://junglewise.ai/threats/cve-2025-22167-this-high-severity-path-traversal-arbitrary-write-vulnerability) (medium, CVSS 6.5, published 22 Oct 2025) - [CVE-2021-26086: Atlassian Jira Server and Data Center Path Traversal Vulnerability](https://junglewise.ai/threats/cve-2021-26086-atlassian-jira-server-and-data-center-path-traversal) (critical, exploited in the wild, CVSS 5.3, published 12 Nov 2024) ## Most severe Atlassian vulnerabilities - [CVE-2023-22527: Atlassian Confluence Data Center and Server Template Injection Vulnerability](https://junglewise.ai/threats/cve-2023-22527-atlassian-confluence-data-center-and-server-template-injection) (critical, exploited in the wild, CVSS 10, published 24 Jan 2024) - [CVE-2023-22518: Atlassian Confluence Data Center and Server Improper Authorization Vulnerability](https://junglewise.ai/threats/cve-2023-22518-atlassian-confluence-data-center-and-server-improper) (critical, exploited in the wild, CVSS 10, published 7 Nov 2023) - [CVE-2023-22515: Atlassian Confluence Data Center and Server Broken Access Control Vulnerability](https://junglewise.ai/threats/cve-2023-22515-atlassian-confluence-data-center-and-server-broken-access-control) (critical, exploited in the wild, CVSS 10, published 5 Oct 2023) - [CVE-2022-26138: Atlassian Questions For Confluence App Hard-coded Credentials Vulnerability](https://junglewise.ai/threats/cve-2022-26138-atlassian-questions-for-confluence-app-hard-coded-credentials) (critical, exploited in the wild, CVSS 9.8, published 29 Jul 2022) - [CVE-2022-26134: Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2022-26134-atlassian-confluence-server-and-data-center-remote-code-execution) (critical, exploited in the wild, CVSS 9.8, published 2 Jun 2022) - [CVE-2019-11581: Atlassian Jira Server and Data Center Server-Side Template Injection Vulnerability](https://junglewise.ai/threats/cve-2019-11581-atlassian-jira-server-and-data-center-server-side-template) (critical, exploited in the wild, CVSS 9.8, published 7 Mar 2022) - [CVE-2019-11580: Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerability](https://junglewise.ai/threats/cve-2019-11580-atlassian-crowd-and-crowd-data-center-remote-code-execution) (critical, exploited in the wild, CVSS 9.8, published 3 Nov 2021) - [CVE-2021-26084: Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability](https://junglewise.ai/threats/cve-2021-26084-atlassian-confluence-server-and-data-center-object-graph) (critical, exploited in the wild, CVSS 9.8, published 3 Nov 2021) - [CVE-2019-3396: Atlassian Confluence Server and Data Center Server-Side Template Injection Vulnerability](https://junglewise.ai/threats/cve-2019-3396-atlassian-confluence-server-and-data-center-server-side-template) (critical, exploited in the wild, CVSS 9.8, published 3 Nov 2021) - [CVE-2022-36804: Atlassian Bitbucket Server and Data Center Command Injection Vulnerability](https://junglewise.ai/threats/cve-2022-36804-atlassian-bitbucket-server-and-data-center-command-injection) (critical, exploited in the wild, CVSS 8.8, published 30 Sep 2022) ## Vulnerabilities per week Nothing in the last four weeks, down from 6 vulnerabilities in the four before. 0 critical against 1, 0 exploited in the wild against 1. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 1 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 3 | 0 | 0 | | 21 Sep 2026 | 2 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 1 | 1 | 1 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 0 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 0 | 0 | 0 | ## Atlassian technologies - [Atlassian Confluence Data Center](https://junglewise.ai/threats/technologies/confluence-data-center): 14 vulnerabilities - [Atlassian Temporal Server](https://junglewise.ai/threats/technologies/server): 13 vulnerabilities - [Atlassian Jira Align](https://junglewise.ai/threats/technologies/jira-align): 11 vulnerabilities - [Atlassian Confluence Server](https://junglewise.ai/threats/technologies/confluence-server): 10 vulnerabilities - [Atlassian Data Center](https://junglewise.ai/threats/technologies/data-center): 6 vulnerabilities - [Atlassian Jira Data Center](https://junglewise.ai/threats/technologies/jira-data-center): 3 vulnerabilities - [Atlassian Jira Server](https://junglewise.ai/threats/technologies/jira-server): 3 vulnerabilities ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Atlassian vulnerabilities", https://junglewise.ai/threats/vendors/atlassian, 9 November 2026.