CVE-2026-75140
jsoup Uncontrolled Resource Consumption in XmlTreeBuilder
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.
Fixes and workarounds
Fix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckFix
The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.
Source: CNA: VulnCheckAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| soup jhy jhy/jsoup
github |
≥ 0; ≤ 1.23.1 (affected, semver) 862ba2f1d48ee95609183dbcfc848c9fd7afc76a (unaffected, git) Other versions: affected |
CNA: VulnCheck |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 4.0 / 8.7 high |
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N | CNA: VulnCheck |
| 3.1 / 7.5 high |
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H | CNA: VulnCheck |
Exploit evidence
No exploit evidence in collected sources. This is not proof of no exploitation.
References
- https://github.com/jhy/jsoup/pull/2556CNA: VulnCheck · issue-tracking, patch
- https://github.com/jhy/jsoup/commit/862ba2f1d48ee95609183dbcfc848c9fd7afc76aCNA: VulnCheck · patch
- https://www.vulncheck.com/advisories/jsoup-uncontrolled-resource-consumption-in-xmltreebuilderCNA: VulnCheck · third-party-advisory
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