High severity7.5NVD Advisory· Published Apr 9, 2026· Updated May 3, 2026
CVE-2026-1584
CVE-2026-1584
Description
A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and resulting in a remote Denial of Service (DoS) condition.
Affected products
2- cpe:2.3:a:redhat:hardened_images:-:*:*:*:*:*:*:*
Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
3- access.redhat.com/security/cve/CVE-2026-1584nvdVendor Advisory
- bugzilla.redhat.com/show_bug.cginvdIssue TrackingVendor Advisory
- access.redhat.com/errata/RHSA-2026:7477nvd
News mentions
3- Patch Tuesday - May 2026Rapid7 Blog · May 13, 2026
- New Exim BDAT Vulnerability Exposes GnuTLS Builds to Potential Code ExecutionThe Hacker News · May 12, 2026
- Siemens SIMATICCISA Alerts