Bug 2458930

Summary: CVE-2026-39984 docker-buildx: improper certificate validation in verifier [fedora-all]
Product: [Fedora] Fedora Reporter: Guilherme de Almeida Suckevicz <gsuckevi>
Component: docker-buildxAssignee: Maxwell G <maxwell>
Status: CLOSED ERRATA QA Contact:
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: bradley.g.smith, go-sig, maxwell
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["20d7597c-8b19-4299-b9d4-5071490e3c97"]}
Fixed In Version: docker-buildx-0.34.0-1.fc45 docker-buildx-0.34.0-1.fc44 docker-buildx-0.34.0-1.fc43 docker-buildx-0.34.0-1.fc42 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-05-13 18:38:14 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: 2458542    

Description Guilherme de Almeida Suckevicz 2026-04-16 13:50:19 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 2026-05-13 18:33:43 UTC
FEDORA-2026-3c4c98309d (docker-buildx-0.34.0-1.fc45) has been submitted as an update to Fedora 45.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-3c4c98309d

Comment 2 Fedora Update System 2026-05-13 18:38:14 UTC
FEDORA-2026-3c4c98309d (docker-buildx-0.34.0-1.fc45) has been pushed to the Fedora 45 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 3 Fedora Update System 2026-05-13 19:06:55 UTC
FEDORA-2026-7f8de90b74 (docker-buildx-0.34.0-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-7f8de90b74

Comment 4 Fedora Update System 2026-05-13 19:20:31 UTC
FEDORA-2026-6d1dd77956 (docker-buildx-0.34.0-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-6d1dd77956

Comment 5 Fedora Update System 2026-05-13 19:37:23 UTC
FEDORA-2026-95f37c21d5 (docker-buildx-0.34.0-1.fc42) has been submitted as an update to Fedora 42.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-95f37c21d5

Comment 6 Fedora Update System 2026-05-15 03:28:14 UTC
FEDORA-2026-7f8de90b74 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-2026-7f8de90b74`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-7f8de90b74

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

Comment 7 Fedora Update System 2026-05-15 03:42:55 UTC
FEDORA-2026-6d1dd77956 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-2026-6d1dd77956`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-6d1dd77956

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

Comment 8 Fedora Update System 2026-05-15 04:05:37 UTC
FEDORA-2026-95f37c21d5 has been pushed to the Fedora 42 testing repository.
Soon you'll be able to install the update with the following command:
`sudo dnf upgrade --enablerepo=updates-testing --refresh --advisory=FEDORA-2026-95f37c21d5`
You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-2026-95f37c21d5

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

Comment 9 Fedora Update System 2026-05-23 00:57:24 UTC
FEDORA-2026-7f8de90b74 (docker-buildx-0.34.0-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 10 Fedora Update System 2026-05-23 15:48:31 UTC
FEDORA-2026-6d1dd77956 (docker-buildx-0.34.0-1.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 2026-05-23 16:00:57 UTC
FEDORA-2026-95f37c21d5 (docker-buildx-0.34.0-1.fc42) has been pushed to the Fedora 42 stable repository.
If problem still persists, please make note of it in this bug report.