ALAS2023-2026-1635: Security update for 15 packages

ALAS2023-2026-1635, released April 27, 2026, fixes 6 CVEs across 15 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

0.0165

76th percentile

Priority of the 6 CVEs

Patch now 0
                                Urgent 0
                                High 1
                                Routine 5

Fixed package versions

Product	Release	Fixed in
cups	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-client	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-client-debuginfo	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-debuginfo	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-debugsource	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-devel	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-filesystem	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-ipptool	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-ipptool-debuginfo	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-libs	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-libs-debuginfo	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-lpd	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-lpd-debuginfo	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-printerapp	amzn 2023	1:2.4.16-1.amzn2023.0.3
cups-printerapp-debuginfo	amzn 2023	1:2.4.16-1.amzn2023.0.3

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-34980	OpenPrinting CUPS: Shared PostScript queue lets anonymous Print-Job requests reach `lp` code execution over the network	7.5	0.0165	None reported
Routine	CVE-2026-34978	OpenPrinting CUPS: Path traversal in RSS notify-recipient-uri enables file write outside CacheDir/rss (and clobbering of job.cache)	6.5	0.0042	None reported
Routine	CVE-2026-34979	OpenPrinting CUPS: Heap overflow in `get_options()`	5.3	0.0041	None reported
Routine	CVE-2026-34990	OpenPrinting CUPS: Local print admin token disclosure using temporary printers	n/a	0.0030	None reported
Routine	CVE-2026-39316	CUPS has a use-after-free in `cupsdDeleteTemporaryPrinters` via dangling subscription pointer	6.2	0.0018	None reported
Routine	CVE-2026-39314	CUPS has an integer underflow in `_ppdCreateFromIPP` causes root cupsd crash via negative `job-password-supported`	6.2	0.0016	None reported

Also fixes CVE-2026-34980

cups 2.4.12-0ubuntu3.9
cups on Ubuntu 25.10 (questing)
cups 2.4.16-1ubuntu1.2
cups on Ubuntu 26.04.1 LTS (resolute)
cups 2.4.1op1-1ubuntu4.20
cups on Ubuntu 22.04.1 LTS (jammy)
cups 2.4.7-1.2ubuntu7.13
cups on Ubuntu 24.04.5 LTS (noble)
cups-bsd 2.4.12-0ubuntu3.9
cups-bsd on Ubuntu 25.10 (questing)
cups-bsd 2.4.16-1ubuntu1.2
cups-bsd on Ubuntu 26.04.1 LTS (resolute)
cups-bsd 2.4.1op1-1ubuntu4.20
cups-bsd on Ubuntu 22.04.1 LTS (jammy)
cups-bsd 2.4.7-1.2ubuntu7.13
cups-bsd on Ubuntu 24.04.5 LTS (noble)

Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2026-1635.html

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