CVE-2026-63734

MEDIUMPre-NVD 4.94.9—
EchelonGraph scoreMEDIUM confidence

Score 4.9 from GitHub Security Advisory published 2026-07-20. the CNA's CVSS baseline 4.9; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
4.9EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 4.9Exploit: None knownExposed: 0

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

SurrealDB versions before 3.2.0 contain a denial of service vulnerability in the SurrealML header parser that allows authenticated Owner-role users to crash the server by uploading a malformed .surml file to the /ml/import endpoint. Attackers can supply non-numeric input-dimensions or other malformed header fields that trigger unchecked unwrap calls, causing a panic that aborts the entire server process and denies service to all databases.

CVSS v3
4.9
EG Score
4.9(medium)
EG Risk
22(Track)
EG Risk 22/100SSVC: 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
Severity49% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

July 20, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 20, 2026
Patch available. Sources: github.
generic

SurrealDB before 3.2.0 Denial of Service via malformed SurrealML import | Advisories | VulnCheck

https://www.vulncheck.com/advisories/surrealdb-before-denial-of-service-via-malformed-surrealml-import
github Patch Available

Denial of Service via malformed SurrealML model import · Advisory · surrealdb/surrealdb · GitHub

https://github.com/surrealdb/surrealdb/security/advisories/GHSA-jwr6-6444-28xv

Vendor Advisories for CVE-2026-63734(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 14× in last 7d / 78× 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 111 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-63734?
CVE-2026-63734 is a medium vulnerability published on July 20, 2026. SurrealDB versions before 3.2.0 contain a denial of service vulnerability in the SurrealML header parser that allows authenticated Owner-role users to crash the server by uploading a malformed .surml file to the /ml/import endpoint. Attackers can supply non-numeric input-dimensions or other…
When was CVE-2026-63734 disclosed?
CVE-2026-63734 was first published in the National Vulnerability Database on July 20, 2026, with the most recent update on July 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-63734 actively exploited?
CVE-2026-63734 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 61.2% of all scored CVEs.
What is the CVSS score of CVE-2026-63734?
CVE-2026-63734 has a CVSS v4.0 base score of 4.9 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-63734?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63734, 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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