OPENSUSE-SU-2026:20973-1: curl security update

OPENSUSE-SU-2026:20973-1, released June 17, 2026, fixes 5 CVEs in curl (version 8.14.1-160000.6.1). 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

0.0072

54th percentile

Priority of the 5 CVEs

Patch now 0
                                Urgent 0
                                High 1
                                Routine 4

Fixed package versions

Product	Release	Fixed in
curl	opensuse-leap 16.0	8.14.1-160000.6.1

CVEs this fix closes

Priority	CVE	Title	CVSS	EPSS	Exploitation
High	CVE-2026-6276	stale custom cookie host causes cookie leak	7.5	0.0030	None reported
Routine	CVE-2026-6253	proxy credentials leak over redirect-to proxy	6.5	0.0072	None reported
Routine	CVE-2026-6429	netrc credential leak with reused proxy connection	6.5	0.0052	None reported
Routine	CVE-2026-5545	wrong reuse of HTTP Negotiate connection	6.5	0.0041	None reported
Routine	CVE-2026-4873	connection reuse ignores TLS requirement	5.9	0.0033	None reported

Also fixes CVE-2026-6276

SUSE-SU-2026:3798-1
curl on sles 15.7
curl 8.14.1-2ubuntu1.3
curl on Ubuntu 25.10 (questing)
libcurl3t64-gnutls 8.14.1-2ubuntu1.3
libcurl3t64-gnutls on Ubuntu 25.10 (questing)
libcurl4t64 8.14.1-2ubuntu1.3
libcurl4t64 on Ubuntu 25.10 (questing)
curl 8.5.0-2ubuntu10.9
curl on Ubuntu 24.04.5 LTS (noble)
libcurl3t64-gnutls 8.5.0-2ubuntu10.9
libcurl3t64-gnutls on Ubuntu 24.04.5 LTS (noble)
libcurl4t64 8.5.0-2ubuntu10.9
libcurl4t64 on Ubuntu 24.04.5 LTS (noble)
curl 7.81.0-1ubuntu1.24
curl on Ubuntu 22.04.1 LTS (jammy)

Vendor advisory

https://osv.dev/vulnerability/openSUSE-SU-2026:20973-1

For tools and AI agents

This page as data: JSON · Markdown

Link to this page

If this page saved you time, a link to it in your ticket, advisory or write-up helps others find it.

HTML

<a href="https://patchblox.com/security/fix/linux/opensuse-su-2026-20973-1">OPENSUSE-SU-2026:20973-1 on Patchblox Patch Radar</a>

Reusing the data? How to credit Patch Radar.

Which servers are still behind?

Patchblox compares the installed package on every Linux machine against the fixed version for its release, including machines reported through Azure Update Manager.

Get a demo

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.