Alerts This Week
Warning Icon 1 815
Alerts This Week
Warning Icon 1 815

SUSE Curl Advisory 2026-22146-1 on Moderate Credential Leak Risk and Issues

suse
Calendar Grey June 18, 2026
Dist Suse Esm H88
SUSE released a moderate security advisory for curl addressing five critical issues. Update recommended for users.
An update that solves five vulnerabilities can now be installed.

Summary

## This update for curl fixes the following issues: * CVE-2026-4873: connection reuse ignores TLS requirement (bsc#1262631). * CVE-2026-5545: wrong reuse of HTTP Negotiate connection (bsc#1262632). * CVE-2026-6253: proxy credentials leak over redirect-to proxy (bsc#1262635). * CVE-2026-6276: stale custom cookie host causes cookie leak (bsc#1262636). * CVE-2026-6429: netrc credential leak with reused proxy connection (bsc#1262638). ## 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-6.2-938=1 ## Package List: * SUSE Linux Micro 6.2 (aarch64 ppc64le s390x x86_64)

Topics%20covered

Topics Covered

security advisory moderate SuSE curl credential leak connection reuse

References

* bsc#1262631

* bsc#1262632

* bsc#1262635

* bsc#1262636

* bsc#1262638

Cross-

* CVE-2026-4873

* CVE-2026-5545

* CVE-2026-6253

* CVE-2026-6276

* CVE-2026-6429

CVSS scores:

* CVE-2026-4873 ( SUSE ): 6.3

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

* CVE-2026-4873 ( SUSE ): 3.7 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N

* CVE-2026-4873 ( NVD ): 5.9 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

* CVE-2026-5545 ( SUSE ): 8.3

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

* CVE-2026-5545 ( SUSE ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

* CVE-2026-5545 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

* CVE-2026-5545 ( NVD ): 6.5 CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:H/A:N

* CVE-2026-6253 ( SUSE ): 8.2

Severity
moderate
Lowest
Low
Medium
High
Critical

Announcement ID: SUSE-SU-2026:22146-1
Release Date: 2026-06-17T08:39:16Z
Rating: moderate

Topics%20covered

Topics Covered

security advisory moderate SuSE curl credential leak connection reuse

Get the latest News and Insights

Get the latest Linux and open source security news straight to your inbox.

Your message here