Vulnerability · Published Aug 16, 2026 · Assigned by VulnCheck
CVE-2026-73057stoatchat before 0.15.0 Uncapped SVG Rendering Denial of Service
High 7.5
In plain English
A high-severity uncontrolled resource consumption in stoatchat from stoatchat. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).
Severity (CVSS 3.1)7.5High
Exploit odds (30 days)0.3%top 72.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
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.
Affected products (as reported)
Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
References
- GitHub Security Advisory (GHSA-x87r-h3mq-7mgr) vendor-advisory
- VulnCheck Advisory: stoatchat before 0.15.0 Uncapped SVG Rendering Denial of Service third-party-advisory