{"action":"Upgrade mcp-atlassian to 0.22.0 or later.","affected":[{"fixed":"0.22.0","introduced":"0"}],"component":"mcp-atlassian","cve_ids":["CVE-2026-77249"],"ecosystem":"PyPI","epss":0.00336,"exploited":false,"fixed_versions":["0.22.0"],"ghsa_id":"GHSA-v9m3-wfh8-5646","id":"tcs_01M5KH9WQCDMMC5KA8VZWTF5H1","modified_at":"2026-10-01T17:45:06.263694461Z","published_at":"2026-10-01T16:38:36.437739Z","references":["https://osv.dev/vulnerability/PYSEC-2026-4100","https://github.com/sooperset/mcp-atlassian/security/advisories/GHSA-v9m3-wfh8-5646","https://github.com/sooperset/mcp-atlassian/pull/1448","https://github.com/sooperset/mcp-atlassian/commit/b041733473f95119dd539542a43c280737a8e460","https://github.com/sooperset/mcp-atlassian","https://github.com/sooperset/mcp-atlassian/releases/tag/v0.22.0","https://pypi.org/project/mcp-atlassian","https://github.com/advisories/GHSA-v9m3-wfh8-5646","https://nvd.nist.gov/vuln/detail/CVE-2026-77249"],"severity":{"label":"medium","score":5.3},"sources":[{"source":"osv","source_id":"PYSEC-2026-4100","url":"https://osv.dev/vulnerability/PYSEC-2026-4100"}],"summary":"MCP Atlassian: Incomplete fix for GHSA-7r34-79r5-rcc9: redirect-based SSRF via unhooked requests session in Jira user-permission lookup"}