Bug 2513803 (CVE-2026-73148)

Summary: CVE-2026-73148 svxlink: svxlink: Use-after-free write via dangling JSON reference in svxreflector
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security DevOps Team <prodsec-dev>
Status: NEW --- QA Contact:
Severity: high Docs Contact:
Priority: high    
Version: unspecifiedKeywords: Security
Target Milestone: ---   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: Doc Type: ---
Doc Text:
A flaw was found in svxlink's svxreflector component. A dangling Json::Value reference is written to after the underlying storage is replaced upon receiving repeated MsgNodeInfo messages. This use-after-free write can lead to a crash or potentially arbitrary code execution.
Story Points: ---
Clone Of: Environment:
Last Closed: 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: 2513817    
Bug Blocks:    

Description OSIDB Bzimport 2026-08-11 07:32:09 UTC
A flaw was found in svxlink's svxreflector. A dangling Json::Value reference is written to after the underlying storage is replaced on repeated MsgNodeInfo, leading to a use-after-free write and potential code execution. Fixed in version 26.05.1.