Vulnerability details

CVE-2026-73057

stoatchat stoatchat

stoatchat before 0.15.0 Uncapped SVG Rendering Denial of Service

CVSS 4.0
8.7High

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.

CVSS scores

ScoreVersionSourceVector
8.7High 4.0 CVEProject cvelistV5 (CNA) (VulnCheck) CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N
7.5High 3.1 CVEProject cvelistV5 (CNA) (VulnCheck) CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

VendorProductVersionsSource
stoatchat stoatchat v < 0.15.0 CVEProject cvelistV5 (CNA)

References and advisories

2
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Details

Published
2026-08-16
Last updated
2026-08-18
State
Published
Assigner (CNA)
VulnCheck

Exploit prediction (EPSS)

0.33%
Probability of exploitation in 30 days
27.2%
Percentile (among all CVEs)

SSVC assessment (CISA)

Automatable
Yes
Exploitation
Proof of concept
Technical impact
Partial

Weaknesses (CWE)

  • CWE-400
    Uncontrolled Resource Consumption