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SUSE libsoup Important Stack Overflow HTTP Injection Advisory 2026-20238-1

suse
Calendar Grey February 11, 2026
Dist Suse Esm H88
Update for libsoup fixes critical issues in SUSE Linux Micro including HTTP header attacks and buffer overflows.
An update that solves two vulnerabilities can now be installed.

Summary

## This update for libsoup fixes the following issues: * CVE-2026-1536: HTTP header injection or response splitting via CRLF injection in the Content-Disposition header (bsc#1257440). * CVE-2026-1761: incorrect length calculation when parsing of multipart HTTP responses can lead to a stack-based buffer overflow (bsc#1257598). ## Patch Instructions: To install this SUSE update use the SUSE recommended installation methods like YaST online_update or "zypper patch". Alternatively you can run the command listed for your product: * SUSE Linux Micro 6.2 zypper in -t patch SUSE-SL-Micro-6.2-250=1 ## Package List: * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64) * libsoup-debugsource-3.6.5-160000.4.1 * libsoup-3_0-0-debuginfo-3.6.5-160000.4.1 * libsoup-3_0-0-3.6.5-160000.4.1

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important libsoup http injection

References

* bsc#1257440

* bsc#1257598

Cross-

* CVE-2026-1536

* CVE-2026-1761

CVSS scores:

* CVE-2026-1536 ( SUSE ): 7.7

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:H/SA:N

* CVE-2026-1536 ( SUSE ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:N

* CVE-2026-1536 ( NVD ): 5.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:L/A:N

* CVE-2026-1761 ( SUSE ): 9.2

CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N

* CVE-2026-1761 ( SUSE ): 8.1 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H

* CVE-2026-1761 ( NVD ): 8.6 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:L

Affected Products:

* SUSE Linux Micro 6.2

An update that solves two vulnerabilities can now be installed.

##

* https://www.suse.com/security/cve/CVE-2026-1536.html

Severity
important
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:20238-1
Release Date: 2026-02-06T11:13:36Z
Rating: important

Topics%20covered

Topics Covered

security advisory buffer overflow SuSE important libsoup http injection

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