GHSA-28vh-mg6p-gxg7HighCVSS 7.5
A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending...
🔗 CVE IDs covered (1)
📋 Description
A flaw was found in Undertow. A remote attacker could exploit this vulnerability by sending specially crafted WebSocket messages with permessage-deflate negotiated. This could lead to excessive memory consumption due to the PerMessageDeflateFunction.largerBuffer() method using exponential doubling, resulting in a Denial of Service (DoS) for the affected application.
🔗 References (8)
- https://nvd.nist.gov/vuln/detail/CVE-2026-5680
- https://access.redhat.com/security/cve/CVE-2026-5680
- https://bugzilla.redhat.com/show_bug.cgi?id=2455350
- https://access.redhat.com/errata/RHSA-2026:70228
- https://access.redhat.com/errata/RHSA-2026:70229
- https://access.redhat.com/errata/RHSA-2026:70230
- https://access.redhat.com/errata/RHSA-2026:70277
- https://github.com/advisories/GHSA-28vh-mg6p-gxg7