CVE-2026-21580

Confluence Data Center and Server versions 7.1.1 through 10.2.0 are affected by a Critical (CVSS 9.3) Stored XSS, privilege escalation, and security misconfiguration issue exploitable by unauthenticated attackers. Atlassian recommends upgrading to 9.2.21 or 10.2.13 or later; no in-the-wild exploi...

CVE-2026-21580

This Critical severity Stored XSS, PrivEsc Privilege Escalation, and Security Misconfiguration vulnerability was introduced in versions 7.1.1, 7.4.0, 7.13.0, 7.17.0, 7.19.0, 8.0.0, 8.5.0, 8.9.0, 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0 and 10.2.0 of Confluence Data Center and...

CVE-2026-21580

This Critical severity Stored XSS, PrivEsc Privilege Escalation, and Security Misconfiguration vulnerability was introduced in versions 7.1.1, 7.4.0, 7.13.0, 7.17.0, 7.19.0, 8.0.0, 8.5.0, 8.9.0, 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0 and 10.2.0 of Confluence Data Center and...

CVE-2026-21580: Improper Neutralization of Input During Web Page Generation

This Critical severity Stored XSS, PrivEsc Privilege Escalation, and Security Misconfiguration vulnerability was introduced in versions 7.1.1, 7.4.0, 7.13.0, 7.17.0, 7.19.0, 8.0.0, 8.5.0, 8.9.0, 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0 and 10.2.0 of Confluence Data Center and...

PT-2026-78242

Name of the Vulnerable Software and Affected Versions Confluence Data Center and Server versions 7.1.1, 7.4.0, 7.13.0, 7.17.0, 7.19.0, 8.0.0, 8.5.0, 8.9.0, 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0 and 10.2.0 Description A stored Cross-Site Scripting XSS, privilege escalation, and...

MINI-8GX5-2V7C-GG65

Bulletin has no description...

DoS (Denial of Service) tar Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 8.9.0, 9.0.1, 9.1.0, 9.2.5, 9.5.1, 10.1.2, and 10.2.0 of Confluence Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H...

CVE-Confluence

Atlassian Confluence CVE Vulnerability Reproduction Sandbox...

CVE-2026-73498 MCP Atlassian is a Model Context Protocol (MCP): Arbitrary file read via missing path validation in confluence_upload_attachment

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, confluenceuploadattachment passes its client-supplied filepath directly to openfilepath, "rb" in src/mcpatlassian/confluence/attachments.py through uploadattachmentdirect without...

CVE-2026-73498

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to 0.22.0, confluenceuploadattachment passes its client-supplied filepath directly to openfilepath, "rb" in src/mcpatlassian/confluence/attachments.py through uploadattachmentdirect without...

BASM (Broken Authentication & Session Management) Apache Tomcat Dependency in Confluence Data Center

This High severity BASM Broken Authentication & Session Management vulnerability known as CVE-2026-53404 was introduced in versions 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0 and 10.2.0 of Confluence Data Center. This BASM Broken Authentication & Session Management vulnerability, with a CV...

BASM (Broken Authentication & Session Management) Apache Tomcat Dependency in Confluence Data Center

This is a vulnerability in a non-Atlassian Confluence dependency. Atlassian's application of this dependency presents a lower, non-critical assessed risk. This Critical severity BASM Broken Authentication & Session Management vulnerability known as CVE-2026-55276 was introduced in versions 6.0.1,...

MITM (Man-in-the-Middle) org.apache.tomcat:tomcat-coyote-ffm Dependency in Confluence Data Center

This is a vulnerability in a non-Atlassian Confluence dependency. Atlassian's application of this dependency presents a lower, non-critical assessed risk. This High severity MITM Man-in-the-Middle vulnerability was introduced in versions 8.9.7, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0,...

DoS (Denial of Service) io.micrometer:micrometer-core Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 10.1.0 and 10.2.0 of Confluence Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H allows an unauthenticated attacker to...

Broken Authentication & Session Management org.bouncycastle:bcpkix-lts8on Dependency in Confluence Data Center

This High severity Broken Authentication & Session Management vulnerability was introduced in versions 9.2.8, 9.5.4, 10.0.3, 10.1.0, and 10.2.0 of Confluence Data Center. This Broken Authentication & Session Management vulnerability, with a CVSS Score of 8.7 and a CVSS Vector of...

DoS (Denial of Service) linkify-it Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.2, 10.1.2, and 10.2.0 of Confluence Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 8.7 and a CVSS Vector of...

DoS (Denial of Service) org.postgresql:postgresql Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 7.4.0, 7.13.0, 7.19.0, 9.2.8, 9.5.4, 10.0.3, 10.1.0, and 10.2.0 of Confluence Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of...

DoS (Denial of Service) linkify-it Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.1.2, and 10.2.0 of Confluence Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of...

Information Disclosure postcss Dependency in Confluence Data Center

This High severity Information Disclosure vulnerability was introduced in versions 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0, and 10.2.0 of Confluence Data Center. This Information Disclosure vulnerability, with a CVSS Score of 7.5 and a CVSS Vector of...

Injection minimist Dependency in Confluence Data Center

This is a vulnerability in a non-Atlassian Confluence dependency. Atlassian's application of this dependency presents a lower, non-critical assessed risk. This Critical severity Injection vulnerability was introduced in versions 9.0.1 and 9.2.22 of Confluence Data Center. This Injection...