Bug 2479583

Summary: CVE-2026-33603 dovecot: Dovecot: Information disclosure via SCRAM TLS channel binding bypass [fedora-all]
Product: [Fedora] Fedora Reporter: Vipul Nair <vinair>
Component: dovecotAssignee: Michal Hlavinka <mhlavink>
Status: CLOSED ERRATA QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: anon.amish, bennie.joubert, mhlavink
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["ce19b6da-add4-4ccb-b2f0-796443205d46"]}
Fixed In Version: dovecot-2.4.4-1.fc44 dovecot-2.4.4-1.fc43 Doc Type: ---
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2026-06-02 00:53:40 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: 2476464    

Description Vipul Nair 2026-05-18 14:50:30 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 2026-05-25 12:13:13 UTC
FEDORA-2026-96eeb03b88 (dovecot-2.4.4-1.fc44) has been submitted as an update to Fedora 44.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-96eeb03b88

Comment 2 Fedora Update System 2026-05-25 12:13:25 UTC
FEDORA-2026-693373747f (dovecot-2.4.4-1.fc43) has been submitted as an update to Fedora 43.
https://bodhi.fedoraproject.org/updates/FEDORA-2026-693373747f

Comment 3 Fedora Update System 2026-06-02 00:53:40 UTC
FEDORA-2026-96eeb03b88 (dovecot-2.4.4-1.fc44) has been pushed to the Fedora 44 stable repository.
If problem still persists, please make note of it in this bug report.

Comment 4 Fedora Update System 2026-06-02 01:10:46 UTC
FEDORA-2026-693373747f (dovecot-2.4.4-1.fc43) has been pushed to the Fedora 43 stable repository.
If problem still persists, please make note of it in this bug report.