CVE-2026-73057
highpriority · track · 0EPSS 0.003 · 27 %ileEUEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · medium–high · 6.6–8.7
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (1)
Products and version ranges known to be affected.
also known as (2)
Other names and identifiers for this entity.
sources
Which sources assert this record, and when.
references (4)
External citations — patches, advisories, analysis.
- https://github.com/stoatchat/stoatchat/security/advisories/GHSA-x87r-h3mq-7mgrenisa_euvd
- https://www.vulncheck.com/advisories/stoatchat-before-uncapped-svg-rendering-denial-of-serviceenisa_euvd
- https://github.com/stoatchat/stoatchat/security/advisories/GHSA-x87r-h3mq-7mgrnvd
- https://www.vulncheck.com/advisories/stoatchat-before-uncapped-svg-rendering-denial-of-servicenvd
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