RHSA-2026:14391 - Security Advisory

Topic

An update is now available for the Red Hat build of Cryostat 4 on RHEL 9.

Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System (CVSS) base score, which gives a detailed severity rating, is available for each vulnerability from the CVE link(s) in the References section.

Description

An update is now available for the Red Hat build of Cryostat 4 on RHEL 9.

Security Fix(es):

• crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages (CVE-2026-32283)
• crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application (CVE-2026-33810)
• golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root (CVE-2026-32282)
• crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Solution

Before applying this update, make sure all previously released errata relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Cryostat 4 x86_64

Fixes

• BZ - 2456335 - CVE-2026-33810 crypto/x509: golang: Go crypto/x509: Certificate validation bypass due to incorrect DNS constraint application
• BZ - 2456336 - CVE-2026-32282 golang: internal/syscall/unix: Root.Chmod can follow symlinks out of the root
• BZ - 2456338 - CVE-2026-32283 crypto/tls: golang: Go crypto/tls: Denial of Service via multiple TLS 1.3 key update messages
• BZ - 2456339 - CVE-2026-32280 crypto/x509: crypto/tls: golang: Go: Denial of Service vulnerability in certificate chain building

CVEs

• CVE-2025-10158
• CVE-2026-1519
• CVE-2026-4424
• CVE-2026-4786
• CVE-2026-4878
• CVE-2026-5121
• CVE-2026-6100
• CVE-2026-22007
• CVE-2026-22013
• CVE-2026-22016
• CVE-2026-22018
• CVE-2026-22021
• CVE-2026-23865
• CVE-2026-27135
• CVE-2026-32280
• CVE-2026-32282
• CVE-2026-32283
• CVE-2026-33810
• CVE-2026-34268
• CVE-2026-34282
• CVE-2026-34982

References

• https://access.redhat.com/security/updates/classification/#important