Stored XSS in Confluence Data Center and Server

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-2025-64340 vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

CVE-2026-27124 vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

GHSA-RWW4-4W9C-7733 vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

GHSA-VV7Q-7JX5-F767 vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

CVE-2026-32871 vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

GHSA-M8X7-R2RG-VH5G vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

GHSA-WM45-QH3G-V83F vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

GHSA-489G-7RXV-6C8Q vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

GHSA-G5R6-GV6M-F5JV vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

PYSEC-2026-2621 MCP Atlassian has SSRF via unvalidated X-Atlassian-Jira-Url / X-Atlassian-Confluence-Url headers

Summary An unauthenticated attacker who can reach the mcp-atlassian HTTP endpoint can force the server process to make outbound HTTP requests to an arbitrary attacker-controlled URL by supplying two custom HTTP headers without an Authorization header. No authentication is required. The...

GHSA-G5R6-GV6M-F5JV mcp-atlassian: Arbitrary file read via missing path validation in confluence_upload_attachment

Summary confluenceuploadattachment passes filepath directly to openfilepath, "rb" with no path validation. Any authenticated MCP client — or an AI agent manipulated via prompt injection — can read any file the server process can access and exfiltrate it to Confluence as an attachment. Details Roo...

Directory Traversal

Overview mcp-atlassian is a The Model Context Protocol MCP Atlassian integration is an open-source implementation that bridges Atlassian products Jira and Confluence with AI language models following Anthropic's MCP specification. This project enables secure, contextual AI interactions with...

GHSA-489G-7RXV-6C8Q MCP Atlassian: DNS-rebinding TOCTOU bypass of the SSRF fix (CVE-2026-27826)

Summary GHSA-7r34-79r5-rcc9's fix added validateurlforssrf, which resolves the attacker-controlled X-Atlassian-Jira,Confluence-Url header host once at middleware time and trusts the result. But the outbound request is later built with the raw hostname and re-resolves at connect time with no IP...

MCP Atlassian: DNS-rebinding TOCTOU bypass of the SSRF fix (CVE-2026-27826)

Summary GHSA-7r34-79r5-rcc9's fix added validateurlforssrf, which resolves the attacker-controlled X-Atlassian-Jira,Confluence-Url header host once at middleware time and trusts the result. But the outbound request is later built with the raw hostname and re-resolves at connect time with no IP...

Exploit for Expression Language Injection in Atlassian Confluence_Data_Center

PoC...

GHSA-4XGF-CPJX-PC3J vulnerabilities

Vulnerabilities for packages: prefect, vllm-openai-cuda-13.0, lmcache-cuda-12.8, azureml-inference-server-http, airflow, airflow-core, mcp-atlassian, airflow-postgres-fips, tritonserver-backend-vllm-cuda-13.0, open-webui, vllm-cuda-13.2, litellm, azureml-inference-server-http-fips, semgrep,...

CVE-2026-6673

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...

EUVD-2026-38249

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...

CVE-2026-6673 Mattermost Jira plugin had unauthenticated {{/ac/installed}} lifecycle callback during pending Jira Cloud install

Mattermost versions 11.7.x = 11.7.0, 11.6.x = 11.6.2, 11.5.x = 11.5.5, 10.11.x = 10.11.17 fail to authenticate Atlassian Connect installed callbacks, allowing a remote unauthenticated attacker to inject a rogue sharedSecret and disrupt the Jira integration via POST to /ac/installed during the...