fonts-katex: KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering onthe web
CVE-2025-23207 is fixed in 4 products on 1 platform, first by fonts-katex 0.13.11+~cs6.0.0-2ubuntu0.1~esm1, released January 17, 2025. It is not reported as exploited. Patch Radar priority: High.
KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering onthe web. KaTeX users who render untrusted mathematical expressions with`renderToString` could encounter malicious input using `\htmlData` thatruns arbitrary JavaScript, or generate invalid HTML. Users are advised toupgrade to KaTeX v0.16.21 to remove this vulnerability. Users unable toupgrade should avoid use of or turn off the `trust` option, or set it toforbid `\htmlData` commands, forbid inputs containing the substring`"\\htmlData"` and sanitize HTML output from KaTeX.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| fonts-katex · Ubuntu 22.04.1 LTS (jammy) | 0.13.11+~cs6.0.0-2ubuntu0.1~esm1 | fonts-katex 0.13.11+~cs6.0.0-2ubuntu0.1~esm1 | Jan 17, 2025 |
| fonts-katex · Ubuntu 24.04.5 LTS (noble) | 0.16.10+~cs6.1.0-2ubuntu0.24.04.1~esm1 | fonts-katex 0.16.10+~cs6.1.0-2ubuntu0.24.04.1~esm1 | Jan 17, 2025 |
| fonts-katex · Ubuntu 24.10 (oracular) | 0.16.10+~cs6.1.0-2ubuntu0.24.10.1 | fonts-katex 0.16.10+~cs6.1.0-2ubuntu0.24.10.1 | Jan 16, 2026 |
| fonts-katex · Ubuntu 25.04 (plucky) | 0.16.10+~cs6.1.0-2ubuntu0.25.04.1 | fonts-katex 0.16.10+~cs6.1.0-2ubuntu0.25.04.1 | Jan 16, 2026 |
| fonts-katex · Ubuntu 25.10 (questing) | 0.16.10+~cs6.1.0-2ubuntu1 | fonts-katex 0.16.10+~cs6.1.0-2ubuntu1 | Jan 17, 2025 |
| fonts-katex · Ubuntu 26.04.1 LTS (resolute) | 0.16.10+~cs6.1.0-2ubuntu1 | fonts-katex 0.16.10+~cs6.1.0-2ubuntu1 | Jan 17, 2025 |
| katex · Ubuntu 22.04.1 LTS (jammy) | 0.13.11+~cs6.0.0-2ubuntu0.1~esm1 | katex 0.13.11+~cs6.0.0-2ubuntu0.1~esm1 | Jan 17, 2025 |
| katex · Ubuntu 24.04.5 LTS (noble) | 0.16.10+~cs6.1.0-2ubuntu0.24.04.1~esm1 | katex 0.16.10+~cs6.1.0-2ubuntu0.24.04.1~esm1 | Jan 17, 2025 |
| katex · Ubuntu 24.10 (oracular) | 0.16.10+~cs6.1.0-2ubuntu0.24.10.1 | katex 0.16.10+~cs6.1.0-2ubuntu0.24.10.1 | Jan 16, 2026 |
| katex · Ubuntu 25.04 (plucky) | 0.16.10+~cs6.1.0-2ubuntu0.25.04.1 | katex 0.16.10+~cs6.1.0-2ubuntu0.25.04.1 | Jan 16, 2026 |
| katex · Ubuntu 25.10 (questing) | 0.16.10+~cs6.1.0-2ubuntu1 | katex 0.16.10+~cs6.1.0-2ubuntu1 | Jan 17, 2025 |
| katex · Ubuntu 26.04.1 LTS (resolute) | 0.16.10+~cs6.1.0-2ubuntu1 | katex 0.16.10+~cs6.1.0-2ubuntu1 | Jan 17, 2025 |
| libjs-katex · Ubuntu 22.04.1 LTS (jammy) | 0.13.11+~cs6.0.0-2ubuntu0.1~esm1 | libjs-katex 0.13.11+~cs6.0.0-2ubuntu0.1~esm1 | Jan 17, 2025 |
| libjs-katex · Ubuntu 24.04.5 LTS (noble) | 0.16.10+~cs6.1.0-2ubuntu0.24.04.1~esm1 | libjs-katex 0.16.10+~cs6.1.0-2ubuntu0.24.04.1~esm1 | Jan 17, 2025 |
| libjs-katex · Ubuntu 24.10 (oracular) | 0.16.10+~cs6.1.0-2ubuntu0.24.10.1 | libjs-katex 0.16.10+~cs6.1.0-2ubuntu0.24.10.1 | Jan 16, 2026 |
| libjs-katex · Ubuntu 25.04 (plucky) | 0.16.10+~cs6.1.0-2ubuntu0.25.04.1 | libjs-katex 0.16.10+~cs6.1.0-2ubuntu0.25.04.1 | Jan 16, 2026 |
| libjs-katex · Ubuntu 25.10 (questing) | 0.16.10+~cs6.1.0-2ubuntu1 | libjs-katex 0.16.10+~cs6.1.0-2ubuntu1 | Jan 17, 2025 |
| libjs-katex · Ubuntu 26.04.1 LTS (resolute) | 0.16.10+~cs6.1.0-2ubuntu1 | libjs-katex 0.16.10+~cs6.1.0-2ubuntu1 | Jan 17, 2025 |
| node-katex · Debian 14 | 0.16.10+~cs6.1.0-7 | DEBIAN-CVE-2025-23207 | Jan 17, 2025 |
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