GHSA-489G-7RXV-6C8Q vulnerabilities

Vulnerabilities for packages: mcp-atlassian...

GHSA-WM45-QH3G-V83F 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...

GHSA-4XGF-CPJX-PC3J vulnerabilities

Vulnerabilities for packages: airflow-core, tritonserver-backend-vllm-cuda-12.9, azureml-inference-server-http-fips, vllm-openai-cuda-13.0, open-webui, semgrep, litellm, mcp-atlassian, prefect, airflow, lmcache-cuda-12.8, azureml-inference-server-http, airflow-postgres-fips, vllm-cuda-13.2,...

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...

PT-2026-51316

Name of the Vulnerable Software and Affected Versions Mattermost version 11.7.0 Mattermost version 11.6.2 Mattermost version 11.5.5 Mattermost version 10.11.17 Description Remote unauthenticated attackers can inject a rogue sharedSecret and disrupt the Jira integration. This occurs during the...

Malicious code in atlassian-forge-skills (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 0ca0f4b99cda621977551550ed678ad77ee82827714acb9d08534f53b0642e3c Package impersonates an internal Atlassian Forge dependency unscoped name atlassian-forge-skills, description 'Internal package', generic author...

MAL-2026-5891 Malicious code in atlassian-forge-skills (npm)

--- -= Per source details. Do not edit below this line.=- Source: amazon-inspector 0ca0f4b99cda621977551550ed678ad77ee82827714acb9d08534f53b0642e3c Package impersonates an internal Atlassian Forge dependency unscoped name atlassian-forge-skills, description 'Internal package', generic author...

CVE-2026-12225

syracom AG Secure Login 2FA for Atlassian Jira, Confluence, and Bitbucket 3.4.0.x contains an authentication bypass vulnerability. An attacker with valid credentials for a user account can bypass the two-factor authentication flow by sending HTTP requests with a crafted User-Agent header containi...

EUVD-2026-37066

syracom AG Secure Login 2FA for Atlassian Jira, Confluence, and Bitbucket 3.4.0.x contains an authentication bypass vulnerability. An attacker with valid credentials for a user account can bypass the two-factor authentication flow by sending HTTP requests with a crafted User-Agent header containi...

Atlassian Confluence Server - Improper Authorization

All versions of Confluence Data Center and Server are affected by this unexploited vulnerability. There is no impact to confidentiality as an attacker cannot exfiltrate any instance data. Atlassian Cloud sites are not affected by this vulnerability. If your Confluence site is accessed via an...

Atlassian Confluence - Remote Code Execution

A template injection vulnerability on older versions of Confluence Data Center and Server allows an unauthenticated attacker to achieve RCE on an affected instance. Customers using an affected version must take immediate action. Most recent supported versions of Confluence Data Center and Server...

PT-2026-49655

Name of the Vulnerable Software and Affected Versions syracom AG Secure Login 2FA for Atlassian Jira, Confluence, and Bitbucket versions 3.4.0.x Description An authentication bypass exists where an attacker with valid user credentials can circumvent the two-factor authentication 2FA flow. By...