Bug#1144972: jsoup: CVE-2026-75140

[Salvatore Bonaccorso]

Source: jsoup
Version: 1.15.3-1
Severity: important
Tags: security upstream
Forwarded: https://github.com/jhy/jsoup/pull/2556
X-Debbugs-Cc: carnil at debian.org, Debian Security Team <team at security.debian.org>

Hi,

The following vulnerability was published for jsoup.

CVE-2026-75140[0]:
| jsoup through 1.23.2, fixed in commit 862ba2f, contains an
| uncontrolled resource consumption vulnerability in XmlTreeBuilder
| that allows remote attackers to exhaust JVM heap memory by supplying
| a deeply nested XML document with uniquely-namespaced elements. The
| builder copies the entire inherited namespace map on every start
| element, causing quadratic time and memory complexity, which
| attackers can exploit to trigger an OutOfMemoryError and terminate
| the application.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-75140
    https://www.cve.org/CVERecord?id=CVE-2026-75140
[1] https://github.com/jhy/jsoup/pull/2556
[2] https://github.com/jhy/jsoup/commit/862ba2f1d48ee95609183dbcfc848c9fd7afc76a

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore