CVE-2026-60008

Gitea Jupyter notebook UI redress through CSS class injection

State: Published
Severity: 3.5 Low
Published: Oct 14, 2026
Updated: Oct 14, 2026
Reserved: Jul 8, 2026

Description

Gitea's Jupyter notebook renderer inserts the notebook's language_info.name metadata into a CSS class attribute while disabling sanitization and rendering directly in the main document without an iframe sandbox. A malicious repository notebook can supply multiple CSS classes that create a viewport-covering overlay and intercept clicks when another user views it. The reported impact is UI redress; script execution was not demonstrated.

Scores

CVSS	Score	Vector	Source
3.1	3.5 Low	CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N	CISA-ADP

Weaknesses

CWE-79 Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
CWE-1021 Improper Restriction of Rendered UI Layers or Frames

Affected Products

Product	Versions
GiteaGitea	1.27.0 through 1.27.1Affected

References

GitHub Security Advisory GHSA-7452-653r-6gp8vendor-advisory
Fix: go-gitea/gitea pull request #38793patch
Gitea 1.27.2 release announcementrelease-notes
Fix: go-gitea/gitea pull request #38795patch
go-gitea/gitea v1.27.2 releaserelease-notes

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