Linux · Red Hat · Security advisory · May 27, 2026

RHSA-2026:20611: Security update for 5 packages

RHSA-2026:20611, released May 27, 2026, fixes 11 CVEs across 5 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent
CVEs closed
11
1 rated Critical
Exploited
0
None reported
Highest CVSS
9.8
Base score, 0 to 10
Highest EPSS
0.0207
81st percentile

Priority of the 11 CVEs

Patch now 0 Urgent 1 High 10 Routine 0

Fixed package versions

ProductReleaseFixed in
gnutlsRHEL 80:3.6.16-8.el8_10.6
gnutls-c++RHEL 80:3.6.16-8.el8_10.6
gnutls-daneRHEL 80:3.6.16-8.el8_10.6
gnutls-develRHEL 80:3.6.16-8.el8_10.6
gnutls-utilsRHEL 80:3.6.16-8.el8_10.6

CVEs this fix closes

PriorityCVETitleCVSSEPSSExploitation
Urgent CVE-2026-33845 gnutls28: A flaw in GnuTLS DTLS handshake parsing allows malformed fragments with zero length and non-zero offset, leading to a...9.1 0.0207 None reported
High CVE-2026-42009 Gnutls: gnutls: denial of service via dtls packet reordering vulnerability8.2 0.0134 None reported
High CVE-2026-33846 gnutls28: A heap buffer overflow vulnerability exists in the DTLS handshake fragment reassembly logic of GnuTLS8.2 0.0126 None reported
High CVE-2026-42010 Gnutls: gnutls: authentication bypass via nul character in username9.8 0.0105 None reported
High CVE-2026-5260 gnutls28: A flaw was found in libgnutls8.2 0.0077 None reported
High CVE-2026-42015 Gnutls: gnutls: memory corruption due to off-by-one error in pkcs#12 bag handling8.2 0.0073 None reported
High CVE-2026-3833 gnutls28: A flaw was found in gnutls8.2 0.0057 None reported
High CVE-2026-42011 Gnutls: gnutls: security bypass due to incorrect name constraint handling8.2 0.0048 None reported
High CVE-2026-42013 Gnutls: gnutls: certificate validation bypass due to oversized subject alternative name8.2 0.0042 None reported
High CVE-2026-42012 gnutls28: A flaw was found in gnutls8.2 0.0037 None reported
High CVE-2026-42014 Gnutls: fix use-after-free in gnutls_pkcs11_token_set_pin8.2 0.0015 None reported
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