Ghostwire

CVE-2026-73057: stoatchat before 0.15.0 fails to validate SVG viewBox dimensions in the proxy endpoint, allowing attackers to cause...

HIGH CVSS 7.5 Exploit Available

Published: August 16, 2026 | Last Modified: August 16, 2026

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.

Ghostwire Analysis — What This Means Practically

High CVSS score indicates significant risk — exploitation could lead to substantial data exposure or system compromise.
Exploit code is reported to be available, increasing the likelihood of active exploitation.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

References

github.com/stoatchat/stoatchat/security/advisories/GHSA-x87r-h3mq-7mgr
www.vulncheck.com/advisories/stoatchat-before-uncapped-svg-rendering-denial-of-s
www.tenable.com/cve/CVE-2026-73057
www.cnnvd.org.cn/home/globalSearch?keyword=CVE-2026-73057