# CVE-2026-71497: jsoup: Cleaner may expose markup with custom raw-text elements

CVE-2026-71497 is fixed in jsoup on 1 platform, first by DEBIAN-CVE-2026-71497, released August 6, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-71497
- Priority: Routine
- CVSS: 4.7 (Moderate)
- EPSS: 0.0030
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 6, 2026
- Weakness: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-71497

## Description

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.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | jsoup Debian 14 | 1.23.2-1 | [DEBIAN-CVE-2026-71497](https://patchblox.com/security/data/fix/linux/debian-cve-2026-71497.md) | Aug 6, 2026 |
| Linux | jsoup amzn 2023 | 1.23.2-1.amzn2023.0.1 | [ALAS2023-2026-2150](https://patchblox.com/security/data/fix/linux/alas2023-2026-2150.md) | Sep 14, 2026 |

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Data as of 2026-11-08T06:59:42Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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