{"action":"Upgrade @jupyterlab/git to 0.54.0 or later.","affected":[{"fixed":"0.54.0","introduced":"0.30.0-beta.3"}],"component":"@jupyterlab/git","cve_ids":["CVE-2026-54527"],"ecosystem":"npm","epss":0.00529,"exploited":false,"fixed_versions":["0.54.0"],"ghsa_id":"GHSA-f962-v9hr-pfg5","id":"tcs_01M5KFEXSY7R2XJZPRCNE3HWDY","modified_at":"2026-09-04T21:30:06.667307085Z","published_at":"2026-06-19T19:36:04Z","references":["https://osv.dev/vulnerability/GHSA-f962-v9hr-pfg5","https://github.com/jupyterlab/jupyterlab-git/security/advisories/GHSA-f962-v9hr-pfg5","https://nvd.nist.gov/vuln/detail/CVE-2026-54527","https://github.com/jupyterlab/jupyterlab-git/commit/c6d37b88f36aa59aee317930b95e427fb9d6b09b","https://github.com/advisories/GHSA-f962-v9hr-pfg5","https://github.com/jupyterlab/jupyterlab-git","https://github.com/jupyterlab/jupyterlab-git/releases/tag/v0.54.0","https://github.com/pypa/advisory-database/tree/main/vulns/jupyterlab-git-core/PYSEC-2026-2541.yaml","https://github.com/pypa/advisory-database/tree/main/vulns/jupyterlab-git/PYSEC-2026-2540.yaml","https://pypi.org/project/jupyterlab-git","https://pypi.org/project/jupyterlab-git-core"],"severity":{"label":"critical","score":9},"sources":[{"source":"osv","source_id":"GHSA-f962-v9hr-pfg5#npm/@jupyterlab/git","url":"https://osv.dev/vulnerability/GHSA-f962-v9hr-pfg5"}],"summary":"jupyterlab-git extension: Stored XSS leading to RCE"}