CVE Explorer
CVE-2026-54527
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.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"product":"jupyterlab-git","vendor":"jupyterlab","versions":[{"status":"affected","version":">= 0.30.0b3, < 0.54.0"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:da5bac796b6da63ac34368e8fb34e078e155a9e9d74bd9cced93090ba3aaa8e7 · sha256:c42e23a992f04d48… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"LOW","subAvailabilityImpact":"HIGH","subConfidentialityImpact":"HIGH","subIntegrityImpact":"HIGH","userInteraction":"ACTIVE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:da5bac796b6da63ac34368e8fb34e078e155a9e9d74bd9cced93090ba3aaa8e7 · sha256:c42e23a992f04d48… · /containers/cna/metrics/0/cvssV4_0
CWE assertions
1 source assertion{"cweId":"CWE-79","description":"CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:da5bac796b6da63ac34368e8fb34e078e155a9e9d74bd9cced93090ba3aaa8e7 · sha256:c42e23a992f04d48… · /containers/cna/problemTypes/0/descriptions/0
Source references
4 source assertions{"name":"https://github.com/jupyterlab/jupyterlab-git/commit/c6d37b88f36aa59aee317930b95e427fb9d6b09b","tags":["x_refsource_MISC"],"url":"https://github.com/jupyterlab/jupyterlab-git/commit/c6d37b88f36aa59aee317930b95e427fb9d6b09b"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:da5bac796b6da63ac34368e8fb34e078e155a9e9d74bd9cced93090ba3aaa8e7 · sha256:c42e23a992f04d48… · /containers/cna/references/1
{"name":"https://github.com/jupyterlab/jupyterlab-git/releases/tag/v0.54.0","tags":["x_refsource_MISC"],"url":"https://github.com/jupyterlab/jupyterlab-git/releases/tag/v0.54.0"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:da5bac796b6da63ac34368e8fb34e078e155a9e9d74bd9cced93090ba3aaa8e7 · sha256:c42e23a992f04d48… · /containers/cna/references/2
{"tags":["exploit"],"url":"https://github.com/jupyterlab/jupyterlab-git/security/advisories/GHSA-f962-v9hr-pfg5"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:da5bac796b6da63ac34368e8fb34e078e155a9e9d74bd9cced93090ba3aaa8e7 · sha256:c42e23a992f04d48… · /containers/adp/0/references/0
{"name":"https://github.com/jupyterlab/jupyterlab-git/security/advisories/GHSA-f962-v9hr-pfg5","tags":["x_refsource_CONFIRM"],"url":"https://github.com/jupyterlab/jupyterlab-git/security/advisories/GHSA-f962-v9hr-pfg5"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:da5bac796b6da63ac34368e8fb34e078e155a9e9d74bd9cced93090ba3aaa8e7 · sha256:c42e23a992f04d48… · /containers/cna/references/0
Attribution and limitations
- CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →
Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.