CVE-2026-37736

HIGHPre-NVD 7.57.5—
EchelonGraph scoreHIGH confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
Trending — 3 sources updated this week
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: None knownExposed: 0

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

An issue in the JsonSanitizer.sanitize() component of OWASP json-sanitizer v1.2.3 allows attackers to cause a Denial of Service (DoS) via a crafted input.

CVSS v3
7.5
EG Score
7.5(high)
EG Risk
49(Track)
EG Risk 49/100SSVC: Track

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%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 28, 2026

Last Modified

September 9, 2026

Advisory Details (2)

Auto-updated Aug 28, 2026
🔬 Proof of concept available. No patch confirmed yet.
generic🟡 PoC Available

Potential DoS Vulnerability: Deeply Nested JSON Causes ArrayIndexOutOfBoundsException · Issue #35 · OWASP/json-sanitizer · GitHub

https://github.com/OWASP/json-sanitizer/issues/35
generic

GitHub - OWASP/json-sanitizer: Given JSON-like content, The JSON Sanitizer converts it to valid JSON. · GitHub

https://github.com/OWASP/json-sanitizer

Vendor Advisories for CVE-2026-37736(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 27× in last 7d / 98× 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. 2026-09-20 20:15 UTCEPSS rescore
  2. 2026-09-20 16:16 UTCGHSA enrichment
  3. 2026-09-20 05:02 UTCGHSA enrichment
  4. 2026-09-19 17:49 UTCEG score recompute
  5. 2026-09-19 17:49 UTCGHSA enrichment
  6. 2026-09-19 06:36 UTCEG score recompute
  7. 2026-09-19 06:36 UTCGHSA enrichment
  8. 2026-09-18 19:28 UTCEPSS rescore
  9. 2026-09-18 19:28 UTCEPSS rescore
  10. 2026-09-18 19:21 UTCGHSA enrichment
  11. 2026-09-18 08:07 UTCGHSA enrichment
  12. 2026-09-17 20:53 UTCEG score recompute
  13. 2026-09-17 20:53 UTCGHSA enrichment
  14. 2026-09-17 19:30 UTCEPSS rescore
  15. 2026-09-17 06:14 UTCGHSA enrichment
  16. 2026-09-16 19:00 UTCEG score recompute
  17. 2026-09-16 19:00 UTCGHSA enrichment
  18. 2026-09-16 14:08 UTCEPSS rescore
  19. 2026-09-16 05:43 UTCEG score recompute
  20. 2026-09-16 05:43 UTCGHSA enrichment
  21. 2026-09-16 05:15 UTCEPSS rescore
  22. 2026-09-15 18:28 UTCGHSA enrichment
  23. 2026-09-15 06:55 UTCEG score recompute
  24. 2026-09-15 06:55 UTCGHSA enrichment
  25. 2026-09-15 03:11 UTCEPSS rescore
Show 73 more
  1. 2026-09-14 19:41 UTCGHSA enrichment
  2. 2026-09-14 08:28 UTCGHSA enrichment
  3. 2026-09-13 21:14 UTCEG score recompute
  4. 2026-09-13 21:14 UTCGHSA enrichment
  5. 2026-09-13 16:47 UTCEPSS rescore
  6. 2026-09-13 10:00 UTCGHSA enrichment
  7. 2026-09-12 22:47 UTCEG score recompute
  8. 2026-09-12 22:47 UTCGHSA enrichment
  9. 2026-09-12 15:01 UTCEPSS rescore
  10. 2026-09-12 11:33 UTCGHSA enrichment
  11. 2026-09-12 00:19 UTCEG score recompute
  12. 2026-09-12 00:19 UTCGHSA enrichment
  13. 2026-09-11 14:53 UTCEPSS rescore
  14. 2026-09-11 13:05 UTCEG score recompute
  15. 2026-09-11 13:05 UTCGHSA enrichment
  16. 2026-09-11 09:37 UTCEPSS rescore
  17. 2026-09-11 01:51 UTCGHSA enrichment
  18. 2026-09-10 14:37 UTCEG score recompute
  19. 2026-09-10 14:37 UTCGHSA enrichment
  20. 2026-09-10 09:34 UTCEPSS rescore
  21. 2026-09-10 03:23 UTCGHSA enrichment
  22. 2026-09-09 16:09 UTCGHSA enrichment
  23. 2026-09-09 11:50 UTCGHSA enrichment
  24. 2026-09-09 00:35 UTCEG score recompute
  25. 2026-09-09 00:35 UTCGHSA enrichment
  26. 2026-09-08 22:00 UTCEPSS rescore
  27. 2026-09-08 06:13 UTCGHSA enrichment
  28. 2026-09-07 19:00 UTCEG score recompute
  29. 2026-09-07 19:00 UTCGHSA enrichment
  30. 2026-09-07 16:01 UTCEPSS rescore
  31. 2026-09-07 07:46 UTCGHSA enrichment
  32. 2026-09-06 20:31 UTCEG score recompute
  33. 2026-09-06 20:31 UTCGHSA enrichment
  34. 2026-09-06 13:47 UTCEPSS rescore
  35. 2026-09-06 09:17 UTCGHSA enrichment
  36. 2026-09-05 22:04 UTCEG score recompute
  37. 2026-09-05 22:03 UTCGHSA enrichment
  38. 2026-09-05 10:48 UTCGHSA enrichment
  39. 2026-09-04 23:31 UTCEG score recompute
  40. 2026-09-04 23:31 UTCGHSA enrichment
  41. 2026-09-04 11:38 UTCEG score recompute
  42. 2026-09-04 11:38 UTCGHSA enrichment
  43. 2026-09-04 05:06 UTCEPSS rescore
  44. 2026-09-04 00:24 UTCGHSA enrichment
  45. 2026-09-03 13:10 UTCGHSA enrichment
  46. 2026-09-03 01:56 UTCGHSA enrichment
  47. 2026-09-02 14:43 UTCEG score recompute
  48. 2026-09-02 14:43 UTCGHSA enrichment
  49. 2026-09-02 14:12 UTCEPSS rescore
  50. 2026-09-02 03:26 UTCGHSA enrichment
  51. 2026-09-01 16:11 UTCEG score recompute
  52. 2026-09-01 16:10 UTCGHSA enrichment
  53. 2026-09-01 13:53 UTCEPSS rescore
  54. 2026-09-01 04:39 UTCEPSS rescore
  55. 2026-09-01 04:27 UTCGHSA enrichment
  56. 2026-08-31 17:08 UTCGHSA enrichment
  57. 2026-08-31 04:35 UTCEG score recompute
  58. 2026-08-31 04:35 UTCGHSA enrichment
  59. 2026-08-30 19:17 UTCEPSS rescore
  60. 2026-08-30 17:21 UTCGHSA enrichment
  61. 2026-08-30 06:08 UTCEG score recompute
  62. 2026-08-30 06:08 UTCGHSA enrichment
  63. 2026-08-30 01:22 UTCEPSS rescore
  64. 2026-08-29 18:52 UTCGHSA enrichment
  65. 2026-08-29 07:38 UTCEG score recompute
  66. 2026-08-29 07:38 UTCGHSA enrichment
  67. 2026-08-28 20:22 UTCGHSA enrichment
  68. 2026-08-28 19:42 UTCEG score recompute▲ 7.50
  69. 2026-08-28 19:42 UTCGHSA enrichment
  70. 2026-08-28 19:36 UTCMITRE cvelistV5CVSS v3 → 7.5 · severity → HIGH
  71. 2026-08-28 16:29 UTCNVD update
  72. 2026-08-28 15:31 UTCEG score recompute
  73. 2026-08-28 15:25 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-37736?
CVE-2026-37736 is a high vulnerability published on August 28, 2026. An issue in the JsonSanitizer.sanitize() component of OWASP json-sanitizer v1.2.3 allows attackers to cause a Denial of Service (DoS) via a crafted input.
When was CVE-2026-37736 disclosed?
CVE-2026-37736 was first published in the National Vulnerability Database on August 28, 2026, with the most recent update on September 9, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-37736 actively exploited?
CVE-2026-37736 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 72.0% of all scored CVEs.
What is the CVSS score of CVE-2026-37736?
CVE-2026-37736 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-37736?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-37736, 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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