Resource exhaustion in Jhy Soup
CVE-2026-75140
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.
EPSS exploit prediction
EPSS: 0.005 (42.5th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 43rd percentile — 42.5% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.005 · newest: 0.005 · change: 0.000
Affected products
Weakness classification (CWE)
References
- github.com/jhy/jsoup/commit/862ba2f1d48ee95609183dbcfc848c9fd7afc76a (patch)
- github.com/jhy/jsoup/pull/2556 (issue-tracking)
- www.vulncheck.com/advisories/jsoup-uncontrolled-resource-consumption-in-xmltree… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-75140?
- CVE-2026-75140 is a high-severity vulnerability in Jhy Soup, classified under Allocation of Resources Without Limits or Throttling. CVSS score: 7.5/10. Published 2026-08-20.
- How severe is CVE-2026-75140?
- High severity. CVSS v3 base score is 7.5 out of 10.