Bug 2500602

Summary: CVE-2026-15588 mingw-glib2: GDBusServer pre-authentication DoS via unbounded SASL line buffering [fedora-all]
Product: [Fedora] Fedora Reporter: Ganesh <gnaik>
Component: mingw-glib2Assignee: Kalev Lember <kalevlember>
Status: CLOSED DUPLICATE QA Contact: Fedora Extras Quality Assurance <extras-qa>
Severity: medium Docs Contact:
Priority: medium    
Version: rawhideCC: fedora, kalevlember, manisandro, marcandre.lureau, rjones
Target Milestone: ---Keywords: Security, SecurityTracking
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: {"flaws": ["8c9573cd-0a4e-46e9-aabb-1eacbe3c6637"]}
Fixed In Version: Doc Type: ---
Doc Text:
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Clone Of: Environment:
Last Closed: 2026-07-29 17:30:15 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 2499675    

Description Ganesh 2026-07-14 20:14:58 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.

A `GDBus` authentication denial-of-service / resource exhaustion flaw has been reported. The vulnerability involves a lack of line length limitations when `gdbusauth` reads input from a client. This can be exploited by an unauthenticated remote or local attacker to cause excessive memory and CPU consumption.
Comment 1 Sandro Mani 2026-07-29 17:30:15 UTC 

*** This bug has been marked as a duplicate of bug 2500600 ***