GHSA-7R34-79R5-RCC9 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...

EUVD-2026-10788

MCP Atlassian has SSRF via unvalidated X-Atlassian-Jira-Url / X-Atlassian-Confluence-Url headers...

Server-side Request Forgery (SSRF)

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...

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...

CVE-2026-27826

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to version 0.17.0, 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 b...

CVE-2026-27826 MCP Atlassian has SSRF via unvalidated X-Atlassian-Jira-Url / X-Atlassian-Confluence-Url headers

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to version 0.17.0, 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 b...

CVE-2026-27826 MCP Atlassian has SSRF via unvalidated X-Atlassian-Jira-Url / X-Atlassian-Confluence-Url headers

MCP Atlassian is a Model Context Protocol MCP server for Atlassian products Confluence and Jira. Prior to version 0.17.0, 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 b...

Exploit for Expression Language Injection in Atlassian Confluence_Data_Center

CVE Docker Lab A collection of Docker-based reproduction envi...

PT-2026-24620

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...

PT-2026-24642

Summary The confluence download attachment MCP tool accepts a download path parameter that is written to without any directory boundary enforcement. An attacker who can call this tool and supply or access a Confluence attachment with malicious content can write arbitrary content to any path the...

Exploit for Expression Language Injection in Atlassian Confluence_Data_Center

CVE-2022-26134 - Atlassian Confluence OGNL RCE This script is...

Atlassian Confluence 7.19.x < 9.2.13 / 9.3.1 < 10.2.2 (CONFSERVER-102184)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-102184 advisory. - This affects the package glob-parent before 5.1.2. The enclosure regex used to check for strings ending in enclosure containing path separator...

Atlassian Confluence 8.5.x < 9.2.1 / 9.3.x < 9.4.0 / 9.5.x < 9.5.1 / 10.0.x < 10.2.3 / 10.2.6 (CONFSERVER-102185)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-102185 advisory. - Versions of the package semver before 7.5.2 are vulnerable to Regular Expression Denial of Service ReDoS via the function new Range, when untrust...

Atlassian Confluence 7.19.x < 9.2.14 / 9.2.15 / 9.3.x < 10.2.3 / 10.2.6 (CONFSERVER-102132)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-102132 advisory. - The Spring Framework annotation detection mechanism may not correctly resolve annotations on methods within type hierarchies with a parameterized...

Atlassian Confluence 7.19.x < 9.2.7 / 9.3.1 < 9.5.3 / 10.0.2 / 10.1.0 / 10.2.0 (CONFSERVER-102193)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-102193 advisory. - Allocation of resources for multipart headers with insufficient limits enabled a DoS vulnerability in Apache Commons FileUpload. This issue affec...

Atlassian Confluence 9.0.0 < 9.2.14 / 9.2.15 / 9.3.1 < 10.2.3 / 10.2.6 (CONFSERVER-102186)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-102186 advisory. - Versions of the package ua-parser-js from 0.7.30 and before 0.7.33, from 0.8.1 and before 1.0.33 are vulnerable to Regular Expression Denial of...

Atlassian Confluence 7.19.x < 8.5.10 / 8.6.x < 9.2.5 / 9.3.x < 9.3.1 / 9.4.x < 9.5.1 / 10.0.2 / 10.1.0 / 10.2.0 (CONFSERVER-101930)

The version of Atlassian Confluence Server running on the remote host is affected by a vulnerability as referenced in the CONFSERVER-101930 advisory. - tar-fs provides filesystem bindings for tar-stream. Versions prior to 3.1.1, 2.1.3, and 1.16.5 are vulnerable to symlink validation bypass if the...

GO-2026-4456 Mattermost Confluence plugin doesn't properly escape user-controlled display names in HTML template rendering in github.com/mattermost/mattermost-plugin-confluence

Mattermost Confluence plugin doesn't properly escape user-controlled display names in HTML template rendering in github.com/mattermost/mattermost-plugin-confluence...

DoS (Denial of Service) in Confluence Data Center and Server

This High severity DoS Denial of Service vulnerability known as CVE-2025-48976 was introduced in versions 7.19 of Confluence Data Center and Server. 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...

DoS (Denial of Service) in Confluence Data Center and Server

This High severity DoS Denial of Service vulnerability known as CVE-2022-25927 was introduced in versions 9.0 of Confluence Data Center and Server. 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...