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Cockpit Security Update — AlmaLinux 9 (ALSA-2026:94533)

ALSA-2026:94533 updates Cockpit on AlmaLinux 9, fixing CVE-2026-91147, CVE-2026-91149 and CVE-2026-76235 — denial-of-service and session-handling flaws (CWE-617 reachable via the web console) at aggregate CVSS 5.9. Update with dnf update cockpit and restart the cockpit service.

High 5.9 CVSS
AlmaLinux 9

What this means under a SharedLicense license

Cockpit is the server's admin web console — denial-of-service or session flaws there either take the management interface offline or disrupt authenticated admin sessions during incident response.

Type:

security

Severity:

important

Release date:

2026-11-04

Description:

Cockpit enables users to administer GNU/Linux servers using a web browser. It offers network configuration, log inspection, diagnostic reports, SELinux troubleshooting, interactive command-line sessions, and more.

Security Fix(es):

* cockpit: Cockpit: Denial of Service in `cockpit-ws` due to URL-root handling without a trailing slash (CVE-2026-91147)
* cockpit: Cockpit: Denial of Service via unbounded connection thread spawning (CVE-2026-91149)
* cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via CockpitLang cookie in send_login_html (CVE-2026-76235)

For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

References:

Updated packages listed below:

Architecture Package Checksum
aarch64 cockpit-ws-356.4-1.el9_8.aarch64.rpm 0383a2c31206b7c4b72a7e6795b514753a7c9c79d476257fa5662fe6ef1a5f8b
aarch64 cockpit-ws-selinux-356.4-1.el9_8.aarch64.rpm b70b7ff9faf062a9f3c2a092372d87052fa2cbeef3ac6b2245c47a8b63a7493a
aarch64 cockpit-356.4-1.el9_8.aarch64.rpm d2fba3ea7114ee802c313af7f5a4963e7716dda41d45a2671c34a09cb1728cb6
noarch cockpit-storaged-356.4-1.el9_8.noarch.rpm 45895ef4d132e0966b6d96a1fd282f427f16df53775bb19e5e46af9bf1f397a3
noarch cockpit-system-356.4-1.el9_8.noarch.rpm 55c33fbaa81d442e1880fb958a0e1f954549638b8e7424313d004c71d058170c
noarch cockpit-doc-356.4-1.el9_8.noarch.rpm b182e122607802cfa0c3580fedc9306d50f06915b485c9762567562829fa6c29
noarch cockpit-packagekit-356.4-1.el9_8.noarch.rpm c82efbfcd2cbbec8e08b935862a376ff62335b91b7973da3bb165ba75c2368bb
noarch cockpit-bridge-356.4-1.el9_8.noarch.rpm ee4fd632a0241fd946707cfd2062271edc046e80a0e110d4a24640f048b757a4
ppc64le cockpit-356.4-1.el9_8.ppc64le.rpm 70185be13ace9e8b70c4910a69e2f1aabe96df8f3e16f64f4da708e9c402eb87
ppc64le cockpit-ws-selinux-356.4-1.el9_8.ppc64le.rpm aef97e46392218a5d91fe15528c15bb9756383f894fb72b92e8e70a087fc9fa6
ppc64le cockpit-ws-356.4-1.el9_8.ppc64le.rpm d58b0d3d676d5dd3e522836f5f73e16ea2c5bec9d93cddde495bd50f1a3cfc76
s390x cockpit-ws-356.4-1.el9_8.s390x.rpm 3adb8d4305f414c355b45d37cbf6bce3dc181360ca09cdd9a4365b440aefb1da
s390x cockpit-356.4-1.el9_8.s390x.rpm 912544b4367c4451b6ec22deb661a40dd61649ce5a007efbb657c1a576f24813
s390x cockpit-ws-selinux-356.4-1.el9_8.s390x.rpm b7610f44c5f845a30151ffeff4b99f4d88e01739bd05fcb025369a9ee427893f
x86_64 cockpit-ws-selinux-356.4-1.el9_8.x86_64.rpm 83cbf728fedf83095bb1b1fd4c601ae9e263dc8434f71e2d3dfa2dbe1888c2f6
x86_64 cockpit-ws-356.4-1.el9_8.x86_64.rpm ad5c14aca19ba5567dd2cc6c335edcc10ce07a17a177d50cea9c46cb552a1053
x86_64 cockpit-356.4-1.el9_8.x86_64.rpm c77fe47998ec28bf49bcb796334a72fe12ecb32f1b14e6b2f9f8ca90397c00a1

Notes:

This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.

Frequently Asked Questions

What is ALSA-2026:94533?
It is AlmaLinux's Cockpit erratum for AlmaLinux 9, fixing CVE-2026-91147, CVE-2026-91149 and CVE-2026-76235 — denial-of-service and session-handling flaws (CWE-617) in the web-based server console, aggregate CVSS 5.9.
Who is affected?
AlmaLinux 9 servers with the Cockpit web console installed and enabled — a common management interface on modern deployments.
How do I apply the fix?
Run dnf update cockpit and restart the cockpit service (systemctl restart cockpit).
Why patch a management console promptly?
Because you need it most during incidents — a console that can be crashed or destabilized at the wrong moment removes your management view exactly when you need it.

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