CVE-2026-15561
highA flaw was found in EAP's undertow http/1.1 chunked-transfer decoder.
A flaw was found in EAP's undertow http/1.1 chunked-transfer decoder. missing limits on size and count would allow an attacker to use an unauthenticated connection to drive the JVM to an OutOfMemory error, stopping all deployments on the listener, and achieving Denial of Service.
CVSS
7.5
7.5 (CVSS v3.1)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H Severity source: NVD CVSS v3.1 (secalert@redhat.com)
Timeline (UTC)
Published: 2026-08-11 09:17
Modified: 2026-11-01 01:17
NVD status: Awaiting Analysis
Last synced 1 day ago
Verified against the source API 2026-11-03 07:34 UTC
Exploitation
Not listed in CISA KEV (as of last catalog sync)
Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).
Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://access.redhat.com/errata/RHSA-2026:53644 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:53806 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:70228 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:70229 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:70230 secalert@redhat.com
- https://access.redhat.com/errata/RHSA-2026:70277 secalert@redhat.com
- https://access.redhat.com/security/cve/CVE-2026-15561 secalert@redhat.com
- https://bugzilla.redhat.com/show_bug.cgi?id=2483133 secalert@redhat.com
Data sources
NVD CVE API 2.0 — fetched 2026-11-03 07:34 UTC · record ↗