CVE-2026-73057

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-16. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this weekElevated
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
7.5
EG Score
7.5(high)
EG Risk
65(Attend)
EG Risk 65/100SSVC: Attend

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation40% × 40%
Automatability100% × 15%
Action: Remediate soon — notable exploitation risk.
EPSS PROB
0%
EPSS %ILE
20%
KEV
Not listed

Published

August 16, 2026

Last Modified

August 18, 2026

Advisory Details (2)

Auto-updated Aug 16, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

stoatchat before 0.15.0 Uncapped SVG Rendering Denial of Service | Advisories | VulnCheck

https://www.vulncheck.com/advisories/stoatchat-before-uncapped-svg-rendering-denial-of-service
github Patch Available🟡 PoC Available

Uncapped SVG rendering in January · Advisory · stoatchat/stoatchat · GitHub

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

Vendor Advisories for CVE-2026-73057(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 25× in last 7d / 25× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-20 22:56 UTCEPSS rescore
  2. 2026-08-20 22:09 UTCGHSA enrichment
  3. 2026-08-20 11:10 UTCGHSA enrichment
  4. 2026-08-20 00:12 UTCEG score recompute
  5. 2026-08-20 00:12 UTCGHSA enrichment
  6. 2026-08-19 17:04 UTCEPSS rescore
  7. 2026-08-19 13:14 UTCGHSA enrichment
  8. 2026-08-19 02:16 UTCEG score recompute
  9. 2026-08-19 02:16 UTCGHSA enrichment
  10. 2026-08-18 15:18 UTCEG score recompute
  11. 2026-08-18 15:18 UTCGHSA enrichment
  12. 2026-08-18 14:52 UTCEG score recompute
  13. 2026-08-18 14:51 UTCGHSA enrichment
  14. 2026-08-18 13:49 UTCEPSS rescore
  15. 2026-08-18 13:49 UTCEPSS rescore
  16. 2026-08-18 10:28 UTCGHSA enrichment
  17. 2026-08-17 23:29 UTCEG score recompute
  18. 2026-08-17 23:29 UTCGHSA enrichment
  19. 2026-08-17 13:47 UTCEPSS rescore
  20. 2026-08-17 12:31 UTCGHSA enrichment
  21. 2026-08-17 01:34 UTCEG score recompute
  22. 2026-08-17 01:34 UTCGHSA enrichment
  23. 2026-08-16 14:36 UTCEG score recompute
  24. 2026-08-16 13:27 UTCEG score recompute
  25. 2026-08-16 13:26 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-73057?
CVE-2026-73057 is a high vulnerability published on August 16, 2026. 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…
When was CVE-2026-73057 disclosed?
CVE-2026-73057 was first published in the National Vulnerability Database on August 16, 2026, with the most recent update on August 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-73057 actively exploited?
CVE-2026-73057 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 79.6% of all scored CVEs.
What is the CVSS score of CVE-2026-73057?
CVE-2026-73057 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-73057?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-73057, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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