python-bleach: A mutation XSS affects users calling bleach.clean with all of: svg or math in the allowed tags p or br in allowed tag...
CVE-2021-23980 is fixed in 2 products on 1 platform, first by python-bleach 2.1.2-1ubuntu0.1~esm1, released February 16, 2023. It is not reported as exploited. Patch Radar priority: Routine.
A mutation XSS affects users calling bleach.clean with all of: svg or math in the allowed tags p or br in allowed tags style, title, noscript, script, textarea, noframes, iframe, or xmp in allowed tags the keyword argument strip_comments=False Note: none of the above tags are in the default allowed tags and strip_comments defaults to True.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| python-bleach · Debian 12.15 (bookworm) | 3.2.1-2.1 | DEBIAN-CVE-2021-23980 | Feb 16, 2023 |
| python-bleach · Debian 13.5 (trixie) | 3.2.1-2.1 | DEBIAN-CVE-2021-23980 | Feb 16, 2023 |
| python-bleach · Debian 14 | 3.2.1-2.1 | DEBIAN-CVE-2021-23980 | Feb 16, 2023 |
| python-bleach · Ubuntu 18.04.6 LTS (bionic) | 2.1.2-1ubuntu0.1~esm1 | python-bleach 2.1.2-1ubuntu0.1~esm1 | Feb 16, 2023 |
| python3-bleach · Ubuntu 18.04.6 LTS (bionic) | 2.1.2-1ubuntu0.1~esm1 | python3-bleach 2.1.2-1ubuntu0.1~esm1 | Feb 16, 2023 |
| python3-bleach · Ubuntu 20.04 LTS (focal) | 3.1.1-1ubuntu0.1~esm1 | python3-bleach 3.1.1-1ubuntu0.1~esm1 | Feb 16, 2023 |
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