ALAS2023-2026-1510: Security update for 3 packages

ALAS2023-2026-1510, released March 30, 2026, fixes 4 CVEs across 3 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

0.0108

65th percentile

Priority of the 4 CVEs

Patch now 0
                                Urgent 0
                                High 2
                                Routine 2

Fixed package versions

Product	Release	Fixed in
mount-s3	amzn 2023	1.22.2-1.amzn2023
mount-s3-debuginfo	amzn 2023	1.22.2-1.amzn2023
mount-s3-debugsource	amzn 2023	1.22.2-1.amzn2023

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-3338	PKCS7_verify Signature Validation Bypass in AWS-LC	7.5	0.0078	None reported
High	CVE-2026-3336	PKCS7_verify Certificate Chain Validation Bypass in AWS-LC	7.5	0.0074	None reported
Routine	CVE-2026-3337	task: task: AWS-LC: Information disclosure via timing discrepancy in AES-CCM decryption	n/a	0.0108	None reported
Routine	CVE-2026-25727	rustup: time: parsing of user-provided input by the RFC 2822 date parser can lead to stack exhaustion	6.5	0.0033	None reported

Also fixes CVE-2026-3338

ALAS2023-2026-1564
amazon-efs-utils on amzn 2023
FEDORA-2026-EB2FC8E93D
task, task-debuginfo, task-debugsource on Fedora 43

Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2026-1510.html

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