CVE-2026-73057 stoatchat before 0.15.0 Uncapped SVG Rendering Denial of Service
Attackers can cause denial of service via memory exhaustion by sending malicious SVGs with large dimensions to the proxy endpoint.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-73057?
CVE-2026-73057 is a high-severity denial of service vulnerability in stoatchat, published on 16 Aug 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
stoatchat before 0.15.0 fails to validate SVG viewBox dimensions in the proxy endpoint, allowing attackers to cause denial of service by memory exhaustion. Attackers can host malicious SVGs with extremely large width and height values and trigger concurrent requests to exhaust available memory across proxy replicas.
Weakness: CWE-400
Which versions are affected by CVE-2026-73057?
How do I fix CVE-2026-73057?
No fix has been published for CVE-2026-73057 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-73057 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-73057 exists.
Sources
Also known as GHSA-4rgf-ww29-jxx4, GHSA-x87r-h3mq-7mgr.