node-dompurify: DOMPurify before 3.4.0 contains a logic error in the ADD_TAGS function where short-circuit evaluation allows forbidde...
CVE-2026-65903 is fixed in 5 products on 1 platform, first by DEBIAN-CVE-2026-65903, released July 24, 2026. It is not reported as exploited. Patch Radar priority: Routine.
DOMPurify before 3.4.0 contains a logic error in the ADD_TAGS function where short-circuit evaluation allows forbidden tags to bypass FORBID_TAGS restrictions. Attackers can craft input containing tags listed in FORBID_TAGS that are also added via ADD_TAGS function, causing them to be retained in sanitized output.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| node-dompurify · Debian 14 | 3.4.1+dfsg-1 | DEBIAN-CVE-2026-65903 | Jul 24, 2026 |
| python-jupytext · Fedora 43 | 1.19.6-1.fc43 | FEDORA-2026-3942AB86FD | Oct 5, 2026 |
| python-jupytext-doc · Fedora 43 | 1.19.6-1.fc43 | FEDORA-2026-3942AB86FD | Oct 5, 2026 |
| python3-jupyterlab-jupytext · Fedora 43 | 1.19.6-1.fc43 | FEDORA-2026-3942AB86FD | Oct 5, 2026 |
| python3-jupytext · Fedora 43 | 1.19.6-1.fc43 | FEDORA-2026-3942AB86FD | Oct 5, 2026 |
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