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.
Published: 2026-10-14
Score: 3.5 Low
EPSS: n/a
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories

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History

Wed, 14 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 3.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:N/A:N'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Wed, 14 Oct 2026 14:45:00 +0000

Type Values Removed Values Added
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.
Title Gitea Jupyter notebook UI redress through CSS class injection
Weaknesses CWE-1021
CWE-79
References

Subscriptions

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cve-icon MITRE

Status: PUBLISHED

Assigner: Gitea

Published:

Updated: 2026-10-14T15:26:34.451Z

Reserved: 2026-07-08T09:19:07.129Z

Link: CVE-2026-60008

cve-icon Vulnrichment

Updated: 2026-10-14T15:26:29.123Z

cve-icon NVD

Status : Deferred

Published: 2026-10-14T15:17:20.787

Modified: 2026-10-14T16:17:47.170

Link: CVE-2026-60008

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses
  • CWE-1021

    Improper Restriction of Rendered UI Layers or Frames

  • CWE-79

    Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')