{"cve":"CVE-2023-1973","nvd":{"published":"2024-11-07T10:15:05.400","modified":"2026-06-17T05:29:10.430","status":"Deferred","description":"A flaw was found in Undertow package. Using the FormAuthenticationMechanism, a malicious user could trigger a Denial of Service by sending crafted requests, leading the server to an OutofMemory error, exhausting the server's memory.","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:H","score":7.5},"cwes":["CWE-20"],"references":["https://access.redhat.com/errata/RHSA-2024:1674","https://access.redhat.com/errata/RHSA-2024:1675","https://access.redhat.com/errata/RHSA-2024:1676","https://access.redhat.com/errata/RHSA-2024:1677","https://access.redhat.com/errata/RHSA-2024:2763"],"products":[],"source":"nvd","synced_at":"2026-10-19T21:57:07.693694550+00:00"},"epss":{"cve":"CVE-2023-1973","score":0.01284,"percentile":0.70118,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-97cq-f4jm-mv8h","url":"https://osv.dev/vulnerability/GHSA-97cq-f4jm-mv8h","summary":"Undertow Denial of Service vulnerability","modified":"2024-11-07T18:57:17.001936Z","packages":[{"ecosystem":"Maven","name":"io.undertow:undertow-core","purl":"pkg:maven/io.undertow/undertow-core","ranges":["<2.2.32.Final"],"fixed":["2.2.32.Final"]},{"ecosystem":"Maven","name":"io.undertow:undertow-core","purl":"pkg:maven/io.undertow/undertow-core","ranges":[">=2.3.0.Alpha1 <2.3.13.Final"],"fixed":["2.3.13.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."]}