CVE-2026-77265 | sooperset mcp-atlassian up to 0.21.x validate_url_for_ssrf X-Atlassian-Jira-Url/X-Atlassian-Confluence-Url server-side request forgery

A vulnerability identified as problematic has been detected in sooperset mcp-atlassian up to 0.21.x. Affected by this issue is the function validate_url_for_ssrf. Performing a manipulation of the argument X-Atlassian-Jira-Url/X-Atlassian-Confluence-Url results in server-side request forgery.

This vulnerability is known as CVE-2026-77265. Remote exploitation of the attack is possible. No exploit is available.

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