CVE-2026-73497: Server-Side Request Forgery (SSRF)

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. From 0.17.0 until 0.22.0, validateurlforssrf resolves the attacker-controlled X-Atlassian-Jira-Url and X-Atlassian-Confluence-Url header host once at middleware time, but the outbound request is built...

DoS (Denial of Service) 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, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0, and 10.2.0 of Confluence Data Center. This DoS Denial of Service vulnerability, with a CVSS Score of 7.1, allows an authenticated attacker to cause a...

CSRF (Cross-Site Request Forgery) nanoid Dependency in Confluence Data Center

This High severity CSRF Cross-Site Request Forgery vulnerability was introduced in versions 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. This CSRF Cross-Site Request Forgery vulnerability, with a CVSS Score of 7.4 and a CVSS Vector of...

DoS (Denial of Service) immutable.js Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability known as CVE-2026-59880 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 DoS Denial of Service vulnerability, with a CVSS Score of 8.7 and a CVSS Vector of...

DoS (Denial of Service) immutable 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, 10.0.2, 10.1.0, 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...

Injection Bouncy Castle 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 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...

DoS (Denial of Service) Bouncy Castle Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability known as CVE-2026-13506 was introduced in versions 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. This DoS Denial of Service vulnerability, with a CVSS Score of 8.7 and a CVSS Vector of...

BASM (Broken Authentication & Session Management) Bouncy Castle Dependency in Confluence Data Center

This High severity BASM Broken Authentication & Session Management vulnerability known as CVE-2026-59639 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 BASM Broken Authentication & Session Management vulnerability, with a CVSS Score of 8.7 and ...

BASM (Broken Authentication & Session Management) Bouncy Castle Dependency in Confluence Data Center

This High severity BASM Broken Authentication & Session Management vulnerability known as CVE-2026-12816 was introduced in versions 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. This BASM Broken Authentication & Session Management...

BASM (Broken Authentication & Session Management) Bouncy Castle Dependency in Confluence Data Center

This High severity BASM Broken Authentication & Session Management vulnerability known as CVE-2026-12803 was introduced in versions 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. This BASM Broken Authentication & Session Management...

DoS (Denial of Service) Bouncy Castle Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability known as CVE-2026-58059 was introduced in versions 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. This DoS Denial of Service vulnerability, with a CVSS Score of 8.7 and a CVSS Vector of...

RCE (Remote Code Execution) org.bouncycastle:bcprov-lts8on Dependency in Confluence Data Center

This High severity RCE Remote Code Execution vulnerability was introduced in versions 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. This RCE Remote Code Execution vulnerability, with a CVSS Score of 8.7 and a CVSS Vector of...

BASM (Broken Authentication & Session Management) Bouncy Castle Dependency in Confluence Data Center

This High severity BASM Broken Authentication & Session Management vulnerability known as CVE-2026-59642 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 BASM Broken Authentication & Session Management vulnerability, with a CVSS Score of 8.7 and ...

RCE (Remote Code Execution) org.bouncycastle:bcprov-lts8on Dependency in Confluence Data Center

This High severity RCE Remote Code Execution vulnerability was introduced in versions 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. This RCE Remote Code Execution vulnerability, with a CVSS Score of 8.7 and a CVSS Vector of...

BASM (Broken Authentication & Session Management) Bouncy Castle 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 was introduced in versions 8.9.0, 9.0.1, 9.1.0, 9.2.0,...

MITM (Man-in-the-Middle) Netty 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 known as CVE-2026-45674 was introduced in versions 7.4.0, 7.13.0, 7.19.0, 8.5.0, 8.9.0...

DoS (Denial of Service) io.netty:netty-handler 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, 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. This DoS Denial of Service vulnerability, with a CVSS Score of 7.5 and a CVSS Vect...

MITM (Man-in-the-Middle) Netty 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 known as CVE-2026-47691 was introduced in versions 7.4.0, 7.13.0, 7.19.0, 8.5.0, 8.9.0...

Improper Authorization io.netty:netty-handler Dependency in Confluence Data Center

This High severity Improper Authorization vulnerability was introduced in versions 7.4.0, 7.13.0, 7.19.0, 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. This Improper Authorization vulnerability, with a CVSS Score of 8.1 and a CVSS...

DoS (Denial of Service) io.netty:netty-codec-http2 Dependency in Confluence Data Center

This High severity DoS Denial of Service vulnerability was introduced in versions 8.5.0, 8.9.0, 9.0.1, 9.1.0, 9.2.9, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 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...