Svxlink: [GHSA-6wgq-wg3w-jgvx: svxreflector: use-after-free write via dangling JSON reference] (CVE-2026-73148)
Description
A use-after-free vulnerability exists in svxreflector component of Svxlink, caused by a dangling JSON reference that allows write operations after memory has been freed. This issue affects multiple specific versions of Svxlink. The vulnerability is rated medium severity. No CVSS score or vendor patch information is provided.
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
CVE-2026-73148 describes a use-after-free write vulnerability in the svxreflector component of Svxlink. The flaw arises from a dangling JSON reference that leads to memory corruption when write operations occur on freed memory. This can potentially cause instability or unexpected behavior in affected Svxlink versions. The vulnerability affects a range of explicitly listed versions, but no patch or remediation details are currently available.
Potential Impact
The vulnerability may allow attackers to cause memory corruption via use-after-free writes, potentially leading to application crashes or other unintended behavior. There is no evidence of known exploits in the wild. The impact is rated medium based on the nature of the flaw and lack of further exploitation details.
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 restricting access to the svxreflector component if feasible.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- UBUNTU-CVE-2026-73148
- 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: 6ad3f58c2cdf04f6566621cd
Added to database: 10/17/2026, 22:24:12 UTC
Last enriched: 10/17/2026, 23:48:29 UTC
Last updated: 10/17/2026, 23:48:29 UTC
Views: 3
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