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3.5

Gitea notebook view can be tricked to hide clicks

CVE-2026-60008 · published 4 days ago
Summary

When Gitea shows Jupyter notebooks, it adds information from the notebook into a style tag without cleaning it. A crafted notebook can insert extra style classes that create an invisible layer over the page, causing users to click on something they cannot see. Update Gitea to the latest version or apply the provided patch to ensure notebook content is properly sanitized.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
gitea gitea <= 1.27.1
Original advisory text
Gitea Jupyter notebook UI redress through CSS class injection
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.
References
Fix within
Internet-facing 60 days
Internal At next upgrade
  • Not known to be exploited
  • Needs hands-on effort to exploit
  • Gives an attacker partial control
Severity
3.5 Low
Exploitation
<1% chance of attack within 30 days
Type
CWE-79Cross-site Scripting (XSS)
CWE-1021Improper Restriction of Rendered UI Layers or Frames
Timeline
Published14 Oct 2026
Updated15 Oct 2026
First seen14 Oct 2026
Sources
CVE-2026-60008 · NVD
CVE-2026-60008 · MITRE
CVE-2026-60008 · OSV
GHSA-7452-653r-6gp8 · GHSA
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