RHSA-2026:98484: Security update for 4 packages

RHSA-2026:98484, released November 12, 2026, fixes 12 CVEs across 4 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

7.5

Base score, 0 to 10

Highest EPSS

0.0122

69th percentile

Priority of the 12 CVEs

Patch now 0
                                Urgent 0
                                High 3
                                Routine 9

Fixed package versions

Product	Release	Fixed in
openssl	RHEL 9	1:3.5.9-1.el9_9
openssl-devel	RHEL 9	1:3.5.9-1.el9_9
openssl-libs	RHEL 9	1:3.5.9-1.el9_9
openssl-perl	RHEL 9	1:3.5.9-1.el9_9

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-54873	QUIC STREAM Fragment Metadata DoS	7.5	0.0072	None reported
High	CVE-2026-84784	QUIC: Unbounded RETIRE_CONNECTION_ID Backlog	7.5	0.0061	None reported
High	CVE-2026-72897	Out-of-Bounds Access After SSL_set_SSL_CTX() During a Handshake	7.5	0.0039	None reported
Routine	CVE-2026-75806	Unauthenticated and Undersized DTLS 1.2 AEAD Record Causes DoS	5.3	0.0122	None reported
Routine	CVE-2026-35191	QUIC Unvalidated Amplification Credit may be Over Accounted	3.7	0.0072	None reported
Routine	CVE-2026-75804	QUIC Connection-Level Flow Control is Not Enforced for Streams	5.3	0.0053	None reported
Routine	CVE-2026-42772	Potential CPU DoS via O(n^2) Fragment Reassembly in QUIC	5.3	0.0050	None reported
Routine	CVE-2026-54872	Timing Side-Channel in Scalar Multiplication for Non-NIST EC Curves	5.9	0.0049	None reported
Routine	CVE-2026-54875	Non-Constant-Time SM2 Scalar Multiplication on ARM64 and RISC-V	4.7	0.0048	None reported
Routine	CVE-2026-77696	Timing Side-Channel in SM2 Signature Generation	5.9	0.0044	None reported
Routine	CVE-2026-75805	NULL Pointer Dereference in CMP Client Revocation Response Handling	5.9	0.0036	None reported
Routine	CVE-2026-35189	Excessive Memory Allocation in Relative CRLDP Processing	5.3	0.0035	None reported

Also fixes CVE-2026-54873

RHSA-2026:98588
openssl on RHEL 10
ALAS2023-2026-3204
openssl, openssl-debuginfo, openssl-debugsource and 8 more on amzn 2023
libssl3t64 3.5.5-1ubuntu3.7
libssl3t64 on Ubuntu 26.04.1 LTS (resolute)
openssl 3.5.5-1ubuntu3.7
openssl on Ubuntu 26.04.1 LTS (resolute)
openssl-provider-legacy 3.5.5-1ubuntu3.7
openssl-provider-legacy on Ubuntu 26.04.1 LTS (resolute)
DEBIAN-CVE-2026-54873
openssl on Debian 13.5 (trixie), Debian 14

Vendor advisory

https://access.redhat.com/errata/RHSA-2026:98484

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