CVE-2026-54528: JupyterLab Git is a Git extension for JupyterLab. Prior to 0.54.0, jupyterlab-git uses fnmatch.fnmatchcase() in GitHandler.prepare() in jupyterlab_git/handlers.py to enforce exclud
JupyterLab Git is a Git extension for JupyterLab. Prior to 0.54.0, jupyterlab-git uses fnmatch.fnmatchcase() in GitHandler.prepare() in jupyterlab_git/handlers.py to enforce excluded_paths, allowing an authenticated user on a case-insensitive filesystem to vary URL path casing and read excluded directories. This issue is fixed in version 0.54.0.
Details
Original advisory: https://nvd.nist.gov/vuln/detail/CVE-2026-54528
Exploitation outlook
EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.
- Low exploitation riskCVE-2026-545280.29% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 20% of all scored CVEs.
Referenced CVEs
| CVE | CSIRTS overview | External |
|---|---|---|
| CVE-2026-54528 | coverage & exploitation status | NVD · CVE.org |
Recent advisories for JupyterLab Git is
A cluster of recent advisories against the same product widens the attack surface — attackers routinely chain freshly published CVEs on one product, so review these together.
More from NVD Recent CVEs
- mediumCVE-2026-10660: The Bluetooth BAP Broadcast Assistant GATT client in subsys/bluetooth/audio/bap_broadcast_assi…2026-07-11
- lowCVE-2026-61870: ImageMagick before 7.1.2-26 contains a memory leak vulnerability in the VIFF encoder when memo…2026-07-11
- lowCVE-2026-61861: ImageMagick before 7.1.2-26 contains a use-after-free vulnerability in the FormatMagickCaption…2026-07-11
- lowCVE-2026-61858: ImageMagick before 7.1.2-26 contains a policy bypass vulnerability in the APNG encoder and ext…2026-07-11
- lowCVE-2026-61857: ImageMagick before 7.1.2-26 contains a heap use-after-free vulnerability caused by missing nul…2026-07-11