Svxlink: [GHSA-r2gm-p682-3mpm: svxreflector: use-after-free via reentrant client deletion] (CVE-2026-73146)
Description
CVE-2026-73146 is a use-after-free vulnerability in the svxreflector component of svxlink. It occurs due to reentrant client deletion, which can lead to memory corruption. Multiple specific versions of svxlink are affected. The severity is assessed as medium. No CVSS score or vendor patch information is currently available.
Affected software
pkg:deb/ubuntu/svxlink?arch=source&distro=xenialpkg:deb/ubuntu/svxlink?arch=source&distro=bionicpkg:deb/ubuntu/svxlink?arch=source&distro=focalpkg:deb/ubuntu/svxlink?arch=source&distro=jammypkg:deb/ubuntu/svxlink?arch=source&distro=noblepkg:deb/ubuntu/svxlink?arch=source&distro=stonkingpkg:deb/ubuntu/svxlink?arch=source&distro=resoluteRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a use-after-free condition in svxreflector within svxlink, triggered by reentrant client deletion. This flaw can cause memory corruption, potentially impacting application stability or security. The affected versions are explicitly listed, covering various builds from version 14.08.1-1build1 through 26.05.1-2. There is no information on active exploitation or available patches.
Potential Impact
The use-after-free vulnerability may allow attackers to cause memory corruption, which could lead to application crashes or potentially other unintended behavior. There is no evidence of known exploits in the wild. The impact is considered medium based on the nature of the flaw and lack of exploitation data.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is available, users should monitor official svxlink channels for updates and consider limiting exposure of svxreflector services.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-73146
- Osv Schema Version
- 1.7.0
- Ecosystems
- ["Ubuntu:16.04:LTS","Ubuntu:18.04:LTS","Ubuntu:20.04:LTS","Ubuntu:22.04:LTS","Ubuntu:24.04:LTS","Ubuntu:26.10","Ubuntu:26.04:LTS"]
Threat ID: 6ad3f58c2cdf04f6566621cf
Added to database: 10/17/2026, 22:24:12 UTC
Last enriched: 10/17/2026, 23:48:36 UTC
Last updated: 10/17/2026, 23:48:36 UTC
Views: 3
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