{"cve":"CVE-2024-3653","nvd":{"published":"2024-07-08T22:15:02.527","modified":"2026-09-08T23:17:20.767","status":"Deferred","description":"A vulnerability was found in Undertow. This issue requires enabling the learning-push handler in the server's config, which is disabled by default, leaving the maxAge config in the handler unconfigured. The default is -1, which makes the handler vulnerable. If someone overwrites that config, the server is not subject to the attack. The attacker needs to be able to reach the server with a normal HTTP request.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-401"],"references":["https://access.redhat.com/errata/RHSA-2024:4392","https://access.redhat.com/errata/RHSA-2024:5143","https://access.redhat.com/errata/RHSA-2024:5144","https://access.redhat.com/errata/RHSA-2024:5145","https://access.redhat.com/errata/RHSA-2024:5147"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:52:42.518321223+00:00"},"epss":{"cve":"CVE-2024-3653","score":0.01866,"percentile":0.79298,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-ch7q-gpff-h9hp","url":"https://osv.dev/vulnerability/GHSA-ch7q-gpff-h9hp","summary":"Undertow Missing Release of Memory after Effective Lifetime vulnerability","modified":"2024-11-04T22:35:25.764123Z","packages":[{"ecosystem":"Maven","name":"io.undertow:undertow-core","purl":"pkg:maven/io.undertow/undertow-core","ranges":[">=2.3.0.Alpha1 <2.3.15.Final"],"fixed":["2.3.15.Final"]},{"ecosystem":"Maven","name":"io.undertow:undertow-core","purl":"pkg:maven/io.undertow/undertow-core","ranges":["<2.2.34.Final"],"fixed":["2.2.34.Final"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}