{"cve":"CVE-2026-54527","nvd":{"published":"2026-07-08T21:16:49.273","modified":"2026-10-25T17:10:00.197","status":"Analyzed","description":"JupyterLab Git is a Git extension for JupyterLab. From 0.30.0b3 before 0.54.0, the PlainTextDiff.ts createHeader() method passes Git filenames directly to innerHTML when rendering renamed files in commit history, allowing a crafted filename to execute JavaScript when a victim views the rename diff in the Git History tab. This issue is fixed in version 0.54.0.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:A/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H","score":9.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:H","score":9.0},"cwes":["CWE-79"],"references":["https://github.com/jupyterlab/jupyterlab-git/commit/c6d37b88f36aa59aee317930b95e427fb9d6b09b","https://github.com/jupyterlab/jupyterlab-git/releases/tag/v0.54.0","https://github.com/jupyterlab/jupyterlab-git/security/advisories/GHSA-f962-v9hr-pfg5","https://github.com/jupyterlab/jupyterlab-git/security/advisories/GHSA-f962-v9hr-pfg5"],"products":["jupyter:jupyterlab-git"],"source":"nvd","synced_at":"2026-10-25T17:50:06.907763985+00:00"},"epss":{"cve":"CVE-2026-54527","score":0.00529,"percentile":0.44454,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-f962-v9hr-pfg5","url":"https://osv.dev/vulnerability/GHSA-f962-v9hr-pfg5","summary":"jupyterlab-git extension: Stored XSS leading to RCE","modified":"2026-09-04T21:30:06.667307085Z","packages":[{"ecosystem":"PyPI","name":"jupyterlab-git","purl":"pkg:pypi/jupyterlab-git","ranges":[">=0.30.0b3 <0.54.0"],"fixed":["0.54.0"]},{"ecosystem":"PyPI","name":"jupyterlab-git-core","purl":"pkg:pypi/jupyterlab-git-core","ranges":[">=0.30.0b3 <0.54.0"],"fixed":["0.54.0"]},{"ecosystem":"npm","name":"@jupyterlab/git","purl":"pkg:npm/%40jupyterlab/git","ranges":[">=0.30.0-beta.3 <0.54.0"],"fixed":["0.54.0"]}]},{"id":"PYSEC-2026-2540","url":"https://osv.dev/vulnerability/PYSEC-2026-2540","summary":"jupyterlab-git extension: Stored XSS leading to RCE","modified":"2026-07-13T16:42:30.807610845Z","packages":[{"ecosystem":"PyPI","name":"jupyterlab-git","purl":"pkg:pypi/jupyterlab-git","ranges":[">=0.30.0b3 <0.54.0"],"fixed":["0.54.0"]}]},{"id":"PYSEC-2026-2541","url":"https://osv.dev/vulnerability/PYSEC-2026-2541","summary":"jupyterlab-git extension: Stored XSS leading to RCE","modified":"2026-07-13T16:42:30.807610845Z","packages":[{"ecosystem":"PyPI","name":"jupyterlab-git-core","purl":"pkg:pypi/jupyterlab-git-core","ranges":[">=0.30.0b3 <0.54.0"],"fixed":["0.54.0"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}