CVE-2026-73057

stoatchat before 0.15.0 Uncapped SVG Rendering Denial of Service

HIGH
7.5
CVSS Score
Published: August 16, 2026 at 01:14 PM UTC
Updated: September 24, 2026 at 08:17 PM UTC
1 product affected across 1 vendorStoatchat

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Severity
HIGH7.5
Exploit prediction
EPSS 0.3%
SSVC
PoC

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.15.0
Vendor states this is fixed in 0.15.0 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-400

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