CVE-2026-73057

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM 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 — 3 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: 0.3%CVSS: 7.5Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

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
7.5HIGHmedium confidence
EG Risk
65
EG Risk 65/100CISA SSVC

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%
CISA SSVC: Track at low or medium mission impact; Attend at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.3%
EPSS %ILE
24th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 16, 2026

Last Modified

September 24, 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 23× in last 7d / 103× 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.

Showing the most recent 100 of 187 total refreshes for this CVE.

  1. 2026-10-05 09:38 UTCEG score recompute
  2. 2026-10-05 09:38 UTCGHSA enrichment
  3. 2026-10-04 23:22 UTCEPSS rescore
  4. 2026-10-04 21:53 UTCGHSA enrichment
  5. 2026-10-04 06:23 UTCGHSA enrichment
  6. 2026-10-03 19:25 UTCEG score recompute
  7. 2026-10-03 19:25 UTCGHSA enrichment
  8. 2026-10-03 14:26 UTCEPSS rescore
  9. 2026-10-03 02:47 UTCEG score recompute
  10. 2026-10-03 02:47 UTCGHSA enrichment
  11. 2026-10-02 15:48 UTCGHSA enrichment
  12. 2026-10-02 01:57 UTCEG score recompute
  13. 2026-10-02 01:57 UTCGHSA enrichment
  14. 2026-10-01 19:50 UTCEPSS rescore
  15. 2026-10-01 09:57 UTCGHSA enrichment
  16. 2026-09-30 22:59 UTCEG score recompute
  17. 2026-09-30 22:59 UTCGHSA enrichment
  18. 2026-09-30 12:02 UTCEG score recompute
  19. 2026-09-30 12:01 UTCGHSA enrichment
  20. 2026-09-29 15:24 UTCEPSS rescore
  21. 2026-09-28 22:01 UTCEG score recompute
  22. 2026-09-28 22:01 UTCGHSA enrichment
  23. 2026-09-28 13:52 UTCEPSS rescore
  24. 2026-09-28 06:29 UTCGHSA enrichment
  25. 2026-09-27 19:32 UTCEG score recompute
Show 75 more
  1. 2026-09-27 19:32 UTCGHSA enrichment
  2. 2026-09-27 13:48 UTCEPSS rescore
  3. 2026-09-27 08:21 UTCEG score recompute
  4. 2026-09-27 08:21 UTCGHSA enrichment
  5. 2026-09-26 15:59 UTCEPSS rescore
  6. 2026-09-25 07:14 UTCGHSA enrichment
  7. 2026-09-24 20:16 UTCEG score recompute
  8. 2026-09-24 20:16 UTCGHSA enrichment
  9. 2026-09-24 07:28 UTCGHSA enrichment
  10. 2026-09-23 20:29 UTCEG score recompute
  11. 2026-09-23 20:29 UTCGHSA enrichment
  12. 2026-09-23 17:54 UTCEPSS rescore
  13. 2026-09-23 07:43 UTCGHSA enrichment
  14. 2026-09-22 20:44 UTCEG score recompute
  15. 2026-09-22 20:44 UTCGHSA enrichment
  16. 2026-09-22 06:29 UTCEG score recompute
  17. 2026-09-22 06:29 UTCGHSA enrichment
  18. 2026-09-21 21:09 UTCEPSS rescore
  19. 2026-09-21 19:16 UTCGHSA enrichment
  20. 2026-09-21 08:18 UTCGHSA enrichment
  21. 2026-09-20 20:47 UTCEG score recompute
  22. 2026-09-20 20:47 UTCGHSA enrichment
  23. 2026-09-20 20:16 UTCEPSS rescore
  24. 2026-09-20 09:49 UTCGHSA enrichment
  25. 2026-09-19 21:58 UTCEG score recompute
  26. 2026-09-19 21:58 UTCGHSA enrichment
  27. 2026-09-19 11:00 UTCGHSA enrichment
  28. 2026-09-18 21:57 UTCEG score recompute
  29. 2026-09-18 21:57 UTCGHSA enrichment
  30. 2026-09-18 19:28 UTCEPSS rescore
  31. 2026-09-18 09:00 UTCGHSA enrichment
  32. 2026-09-17 22:02 UTCEG score recompute
  33. 2026-09-17 22:02 UTCGHSA enrichment
  34. 2026-09-17 10:12 UTCGHSA enrichment
  35. 2026-09-16 23:14 UTCEG score recompute
  36. 2026-09-16 23:14 UTCGHSA enrichment
  37. 2026-09-16 14:08 UTCEPSS rescore
  38. 2026-09-16 06:16 UTCEG score recompute
  39. 2026-09-16 06:15 UTCGHSA enrichment
  40. 2026-09-16 05:15 UTCEPSS rescore
  41. 2026-09-15 19:17 UTCEG score recompute
  42. 2026-09-15 19:17 UTCGHSA enrichment
  43. 2026-09-15 06:56 UTCEG score recompute
  44. 2026-09-15 06:56 UTCGHSA enrichment
  45. 2026-09-15 03:12 UTCEPSS rescore
  46. 2026-09-14 19:58 UTCGHSA enrichment
  47. 2026-09-14 07:27 UTCGHSA enrichment
  48. 2026-09-13 20:29 UTCEG score recompute
  49. 2026-09-13 20:29 UTCGHSA enrichment
  50. 2026-09-13 09:31 UTCGHSA enrichment
  51. 2026-09-12 22:33 UTCEG score recompute
  52. 2026-09-12 22:33 UTCGHSA enrichment
  53. 2026-09-12 15:02 UTCEPSS rescore
  54. 2026-09-12 11:34 UTCGHSA enrichment
  55. 2026-09-12 00:20 UTCEG score recompute
  56. 2026-09-12 00:20 UTCGHSA enrichment
  57. 2026-09-11 14:53 UTCEPSS rescore
  58. 2026-09-11 13:22 UTCEG score recompute
  59. 2026-09-11 13:22 UTCGHSA enrichment
  60. 2026-09-11 00:45 UTCGHSA enrichment
  61. 2026-09-10 13:12 UTCEG score recompute
  62. 2026-09-10 13:12 UTCGHSA enrichment
  63. 2026-09-10 09:35 UTCEPSS rescore
  64. 2026-09-10 02:14 UTCGHSA enrichment
  65. 2026-09-09 15:16 UTCGHSA enrichment
  66. 2026-09-09 03:48 UTCEG score recompute
  67. 2026-09-09 03:47 UTCGHSA enrichment
  68. 2026-09-08 22:01 UTCEPSS rescore
  69. 2026-09-08 03:10 UTCGHSA enrichment
  70. 2026-09-07 16:12 UTCEG score recompute
  71. 2026-09-07 16:12 UTCGHSA enrichment
  72. 2026-09-07 04:48 UTCGHSA enrichment
  73. 2026-09-06 15:16 UTCEG score recompute
  74. 2026-09-06 15:16 UTCGHSA enrichment
  75. 2026-09-06 13:48 UTCEPSS rescore

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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 on August 16, 2026, with the most recent update on September 24, 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 0.3% probability of exploitation in the next 30 days (24th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-73057?
CVE-2026-73057 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-73057?
A fix for CVE-2026-73057 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-73057 are linked in the Vendor Advisories panel on this page.

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