CVE-2026-73057

High

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.

SeverityHigh

CVSS7.5

Exploit probability—

ProductStoatchat

PublishedAug 16, 2026

First seenAug 16, 2026

Weakness typeCWE-400Uncontrolled resource consumption

How to fix

Update

stoatchat stoatchat0.15.0 or later

Vendor advisories

github.com/stoatchat/stoatchat/security/advisories/GHSA-x87r-h3mq-7mgr

Affected products

Product	Affected versions	Fixed in
stoatchat stoatchat	v < 0.15.0	0.15.0

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