RHSA-2026:67165: Security update for 4 packages

RHSA-2026:67165, released September 19, 2026, fixes 10 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: Urgent.

Urgent

CVEs closed

1 rated Critical

Exploited

None reported

Highest CVSS

9.8

Base score, 0 to 10

Highest EPSS

0.0170

77th percentile

Priority of the 10 CVEs

Patch now 0
                                Urgent 1
                                High 9
                                Routine 0

Fixed package versions

Product	Release	Fixed in
openssl	RHEL 9	1:3.5.8-1.el9_8
openssl-devel	RHEL 9	1:3.5.8-1.el9_8
openssl-libs	RHEL 9	1:3.5.8-1.el9_8
openssl-perl	RHEL 9	1:3.5.8-1.el9_8

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
Urgent	CVE-2026-75803	openssl: Issue summary: ChaCha20-Poly1305 and AES-OCB decryption with an empty ciphertext can report success without verifying...	9.1	0.0025	None reported
High	CVE-2026-18798	openssl: Issue summary: QUIC server may double free QRX (QUIC record layer RX) object when channel creation fails for initial...	7.5	0.0170	None reported
High	CVE-2026-63076	Invalid Pointer Dereference in CMP Server via Crafted protectionAlg	7.5	0.0160	None reported
High	CVE-2026-14457	RPK Server Signature Algorithm Selection Can Dereference a Missing Certificate	7.5	0.0117	None reported
High	CVE-2026-63073	Untrusted Sender DN Used as Format String in CMP Response Validation	9.8	0.0116	None reported
High	CVE-2026-63072	Heap Buffer Overflow in CMS Key Unwrapping	7.5	0.0092	None reported
High	CVE-2026-14456	Unbounded Memory Growth in QUIC Server Incoming Channel Queue	7.5	0.0073	None reported
High	CVE-2026-54874	Excessive Memory Use Buffering DTLS Records for a Future Epoch	7.5	0.0062	None reported
High	CVE-2026-63074	CMP Indefinite Cache Growth of ExtraCerts	7.5	0.0059	None reported
High	CVE-2026-63075	QUIC ACK-only Packet Retention Can Cause Memory Exhaustion	7.5	0.0057	None reported

Also fixes CVE-2026-75803

SUSE-SU-2026:4039-1
openssl-3 on sles 15.7
SUSE-SU-2026:23609-1
openssl-3 on sles 16.0
OPENSUSE-SU-2026:21744-1
openssl-3 on opensuse-leap 16.0
ALSA-2026:67165
openssl, openssl-devel, openssl-libs and 1 more on almalinux 9
ALAS2023-2026-2136
openssl, openssl-debuginfo, openssl-debugsource and 8 more on amzn 2023
SUSE-SU-2026:3866-1
openssl-3 on sles 15.6
libssl3 3.0.2-0ubuntu1.29
libssl3 on Ubuntu 22.04.1 LTS (jammy)
libssl3t64 3.0.13-0ubuntu3.15
libssl3t64 on Ubuntu 24.04.5 LTS (noble)

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:67165

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