medium4.7
CVE-2026-71497
jsoup: Cleaner may expose markup with custom raw-text elements
Impact
jsoup is a Java library for working with real-world HTML. From 1.14.3 until 1.23.1, jsoup's HTML parser could incorrectly handle a malformed tag name ending in a control character, causing the tag to acquire the parsing behavior of a different element. When a custom Safelist permits certain raw-text elements, this misparsing can cause content that should remain inert text to be emitted as active markup after serialization, potentially resulting in cross-site scripting. jsoup's built-in Safelists are not affected. This issue is fixed in version 1.23.1.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| maven | org.jsoup:jsoup | >= 1.14.3, < 1.23.1 | 1.23.1 |
Weakness classification
References
- NVD record
- CVE.org record
- GitHub advisory
- https://github.com/advisories/GHSA-pmhh-3w7g-xqp8
- https://github.com/jhy/jsoup/security/advisories/GHSA-pmhh-3w7g-xqp8
- https://github.com/jhy/jsoup/issues/2538
- https://github.com/jhy/jsoup/commit/92f1aca552548b484bc7d4b94c51e48b8e6eca70
- https://github.com/jhy/jsoup/releases/tag/jsoup-1.23.1