{"action":"Upgrade document-merge-service to 9.1.0 or later.","affected":[{"fixed":"9.1.0","introduced":"0"}],"component":"document-merge-service","cve_ids":["CVE-2026-53964"],"ecosystem":"PyPI","epss":0.00493,"exploited":false,"fixed_versions":["9.1.0"],"ghsa_id":"GHSA-w47q-945m-q9pc","id":"tcs_01M5KH81CF7X0V7SK6X7AZKWD4","modified_at":"2026-09-10T12:15:05.605719783Z","published_at":"2026-09-10T09:44:51.968052Z","references":["https://osv.dev/vulnerability/PYSEC-2026-3830","https://github.com/adfinis/document-merge-service/security/advisories/GHSA-w47q-945m-q9pc","https://github.com/adfinis/document-merge-service","https://github.com/adfinis/document-merge-service/releases/tag/v9.1.0","https://pypi.org/project/document-merge-service","https://github.com/advisories/GHSA-w47q-945m-q9pc","https://nvd.nist.gov/vuln/detail/CVE-2026-53964"],"severity":{"label":"high","score":7.2},"sources":[{"source":"osv","source_id":"PYSEC-2026-3830","url":"https://osv.dev/vulnerability/PYSEC-2026-3830"}],"summary":"Document Merge Service vulnerable to RCE via SSTI (xlsx tempaltes)"}