{"id":"CVE-2026-71497","title":"jsoup is a Java library for working with real-world HTML","summary":"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 dif…","severity":"medium","cvss":4.7,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:L/I:L/A:N","cwe":["CWE-79","CWE-1289"],"vendor":"jsoup","product":"org.jsoup:jsoup","affected":["org.jsoup:jsoup >= 1.14.3, < 1.23.1"],"patched":["org.jsoup:jsoup 1.23.1"],"published":"2026-08-06","updated":"2026-09-10","sourceUpdated":"2026-09-10T20:41:33.140","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-71497","references":[{"url":"https://github.com/jhy/jsoup/commit/92f1aca552548b484bc7d4b94c51e48b8e6eca70","label":"security-advisories@github.com"},{"url":"https://github.com/jhy/jsoup/issues/2538","label":"security-advisories@github.com"},{"url":"https://github.com/jhy/jsoup/releases/tag/jsoup-1.23.1","label":"security-advisories@github.com"},{"url":"https://github.com/jhy/jsoup/security/advisories/GHSA-pmhh-3w7g-xqp8","label":"security-advisories@github.com"},{"url":"https://github.com/advisories/GHSA-pmhh-3w7g-xqp8"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-71497.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-71497"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2512346"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-71497"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-71497"}],"tags":["nvd","ghsa","maven","csaf","vex","red-hat"],"epss":0.0019,"epssPercentile":0.08952,"aliases":["GHSA-pmhh-3w7g-xqp8"],"ecosystem":"maven","ingestedAt":"2026-08-06T22:05:23.338Z","slug":"CVE-2026-71497","body":"## Overview\n\njsoup 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2026-71497)\n\nAffected packages:\n\n- `org.jsoup:jsoup >= 1.14.3, < 1.23.1`\n\nPatched in:\n\n- `org.jsoup:jsoup 1.23.1`\n\nSource: https://github.com/advisories/GHSA-pmhh-3w7g-xqp8\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Cryostat 4, Migration Toolkit for Applications 8, OpenShift Developer Tools and Services, Red Hat AMQ Broker 7, Red Hat build of Apache Camel - HawtIO 4, Red Hat build of Apicurio Registry 3, … · no fix planned: Cryostat 4, Migration Toolkit for Applications 8, OpenShift Developer Tools and Services, Red Hat AMQ Broker 7, … · updated 2026-09-21 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-71497.json)","depth":"sunlit","depthScore":26,"depthScoreParts":{"impact":25.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}