Cross-site Scripting (XSS) The advisory has been revoked - it doesn't affect any version of package ruff (opens in a new tab)
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-RHEL10-RUFF-18871116
- published1 Sept 2026
- disclosed23 Jul 2026
Introduced: 23 Jul 2026
CVE-2026-65912 (opens in a new tab)Amendment
The Red Hat security team deemed this advisory irrelevant for RHEL:10.
NVD Description
Note: Versions mentioned in the description apply only to the upstream ruff package and not the ruff package as distributed by RHEL.
DOMPurify before 3.3.2 contains a URI validation bypass vulnerability when ADD_ATTR is provided as a predicate function via EXTRA_ELEMENT_HANDLING.attributeCheck. Attackers can supply a predicate that accepts specific attribute and tag combinations to bypass URI-safe validation, allowing unsafe protocols like javascript: to survive sanitization and execute as DOM-based XSS when the link is activated.
References
- https://bugzilla.redhat.com/show_bug.cgi?id=2506427
- https://access.redhat.com/security/cve/CVE-2026-65912
- https://access.redhat.com/errata/RHSA-2026:54517
- https://access.redhat.com/errata/RHSA-2026:58500
- https://github.com/cure53/DOMPurify/security/advisories/GHSA-cjmm-f4jc-qw8r
- https://www.vulncheck.com/advisories/dompurify-before-uri-validation-bypass-via-add-attr