ALAS2023-2026-1778: Security update for 5 packages

ALAS2023-2026-1778, released June 8, 2026, fixes 8 CVEs across 5 products. None of them is reported as exploited. Patch Radar priority: High.

High

CVEs closed

None rated Critical

Exploited

None reported

Highest CVSS

8.6

Base score, 0 to 10

Highest EPSS

0.0106

64th percentile

Priority of the 8 CVEs

Patch now 0
                                Urgent 0
                                High 1
                                Routine 7

Fixed package versions

Product	Release	Fixed in
libsoup3	amzn 2023	3.6.6-58.amzn2023
libsoup3-debuginfo	amzn 2023	3.6.6-58.amzn2023
libsoup3-debugsource	amzn 2023	3.6.6-58.amzn2023
libsoup3-devel	amzn 2023	3.6.6-58.amzn2023
libsoup3-doc	amzn 2023	3.6.6-58.amzn2023

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-1761	libsoup: Check length of bytes read in soup_filter_input_stream_read_until to avoid a stack-based buffer overflow	8.6	0.0106	None reported
Routine	CVE-2026-1760	libsoup: improper handling of HTTP requests combining certain headers by SoupServer can lead to HTTP request	n/a	0.0047	None reported
Routine	CVE-2026-2436	libsoup3: Denial of Service via use-after-free in SoupServer during TLS handshake	n/a	0.0046	None reported
Routine	CVE-2026-1801	libsoup: HTTP Request Smuggling in soup_filter_input_stream_read_line() (bsc#1257649).	n/a	0.0042	None reported
Routine	CVE-2026-0716	Libsoup: out-of-bounds read in libsoup websocket frame processing	4.8	0.0038	None reported
Routine	CVE-2026-1467	libsoup: lack of input sanitization can lead to unintended or unauthorized HTTP requests (bsc#1257398).	n/a	0.0037	None reported
Routine	CVE-2026-2708	Libsoup: libsoup: http request smuggling via duplicate content-length headers	3.7	0.0032	None reported
Routine	CVE-2026-5119	libsoup: Backport patch for	5.9	0.0026	None reported

Also fixes CVE-2026-1761

ALAS2023-2026-1758
libsoup, libsoup-debuginfo, libsoup-debugsource and 2 more on amzn 2023
SUSE-SU-2026:0574-1
libsoup2 on opensuse-leap 15.6, sles 15.6, sles 15.7
RLSA-2026:2216
libsoup on rocky 9
RLSA-2026:2214
spice-client-win on rocky 8
RLSA-2026:2215
libsoup on rocky 8
SUSE-SU-2026:0431-1
libsoup on opensuse-leap 15.6, sles 15.6, sles 15.7
ALSA-2026:2215
libsoup, libsoup-devel on almalinux 8
ALSA-2026:2216
libsoup, libsoup-devel on almalinux 9

Vendor advisory

https://alas.aws.amazon.com/AL2023/ALAS-2026-1778.html

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