Bug 2444610

Summary: CVE-2026-20031 clamav: improper error handling when splitting UTF-8 strings in the HTML Cascading Style Sheets (CSS) module [fedora-all]
Product: [Fedora] Fedora Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: clamavAssignee: Gwyn Ciesla <gwync>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: anon.amish, bennie.joubert, Christopher.leinbach, gk, gwync, j, lee.jnk, ondrejj, orion, rh-bugzilla, steve
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["94c80be8-735b-437e-887f-bba091d5f1a1"]}
Fixed In Version: clamav-1.4.6-1.fc44 clamav-1.4.6-1.el9 clamav-1.4.6-1.el8 clamav-1.4.6-1.fc43 clamav-1.4.6-1.el10_3 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-08-12 00:47:49 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2444587    

Description Guilherme de Almeida Suckevicz 2026-03-04 19:32:22 UTC
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.

Comment 1 Fedora Update System 2026-08-10 15:57:43 UTC
FEDORA-2026-ecf6fe868f (clamav-1.4.6-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-ecf6fe868f

Comment 2 Fedora Update System 2026-08-11 01:20:42 UTC
FEDORA-EPEL-2026-b873ec0e0b has been pushed to the Fedora EPEL 10.3 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-b873ec0e0b

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 3 Fedora Update System 2026-08-11 01:27:56 UTC
FEDORA-EPEL-2026-e14bc659f0 has been pushed to the Fedora EPEL 9 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-e14bc659f0

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 4 Fedora Update System 2026-08-11 03:16:39 UTC
FEDORA-EPEL-2026-3432a047a4 has been pushed to the Fedora EPEL 8 testing repository.

You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2026-3432a047a4

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 5 Fedora Update System 2026-08-11 03:38:01 UTC
FEDORA-2026-ecf6fe868f has been pushed to the Fedora 44 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-ecf6fe868f`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-ecf6fe868f

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 6 Fedora Update System 2026-08-11 03:57:05 UTC
FEDORA-2026-a9beec8485 has been pushed to the Fedora 43 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-a9beec8485`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-a9beec8485

See also https://fedoraproject.org/wiki/QA:Updates_Testing for more information on how to test updates.

Comment 7 Fedora Update System 2026-08-12 00:47:49 UTC
FEDORA-2026-ecf6fe868f (clamav-1.4.6-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 8 Fedora Update System 2026-08-12 00:58:08 UTC
FEDORA-EPEL-2026-e14bc659f0 (clamav-1.4.6-1.el9) has been pushed to the Fedora EPEL 9 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 9 Fedora Update System 2026-08-12 00:58:18 UTC
FEDORA-EPEL-2026-3432a047a4 (clamav-1.4.6-1.el8) has been pushed to the Fedora EPEL 8 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2026-08-12 01:10:42 UTC
FEDORA-2026-a9beec8485 (clamav-1.4.6-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 11 Fedora Update System 2026-08-19 00:26:11 UTC
FEDORA-EPEL-2026-b873ec0e0b (clamav-1.4.6-1.el10_3) has been pushed to the Fedora EPEL 10.3 stable repository.
If problem still persists, please make note of it in this bug report.