CVE-2026-54527
critical · 9.3JupyterLab 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.
9.3
CVSS
0.5%
EPSS (exploit prob.)
44th
EPSS percentile
2026-07-08
Published
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Weaknesses
CWE-79
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| jupyter | jupyterlab-git | >= 0.30.1, < 0.54.0 |
| jupyter | jupyterlab-git | 0.30.0 |
| jupyter | jupyterlab-git | 0.30.0 |
Check a specific version with /api/v1/cve/match.
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
Query this programmatically:
curl https://evil-db.io/api/v1/cve/CVE-2026-54527