CVE-2026-63757

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-20. the CNA's CVSS baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:vulncheck, epss, ghsa
Trending — 3 sources updated this week
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 8.8Exploit: None knownExposed: 0

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

SurrealDB versions before 3.1.0 contain a session hijacking vulnerability where the HTTP /rpc sessions method returns attached session UUIDs without authentication and accepts arbitrary session fields with no ownership verification. Unauthenticated attackers can enumerate session UUIDs and impersonate authenticated sessions to read, write, delete data and escalate privileges.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
55(Track)
EG Risk 55/100SSVC: 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
Severity88% × 45%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
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 3.1.0 Session Hijacking via /rpc sessions | Advisories | VulnCheck

https://www.vulncheck.com/advisories/surrealdb-before-session-hijacking-via-rpc-sessions
github Patch Available

HTTP /rpc `sessions` method leaks attached session UUIDs, enabling full session hijack by anonymous callers · Advisory · surrealdb/surrealdb · GitHub

https://github.com/surrealdb/surrealdb/security/advisories/GHSA-5qfp-32cf-69jh

Vendor Advisories for CVE-2026-63757(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 / 42× 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. 2026-07-30 03:35 UTCEG score recompute
  2. 2026-07-30 03:35 UTCGHSA enrichment
  3. 2026-07-30 01:30 UTCEPSS rescore
  4. 2026-07-30 01:30 UTCEPSS rescore
  5. 2026-07-29 15:05 UTCGHSA enrichment
  6. 2026-07-29 02:35 UTCEG score recompute
  7. 2026-07-29 02:35 UTCGHSA enrichment
  8. 2026-07-28 15:37 UTCEPSS rescore
  9. 2026-07-28 14:05 UTCGHSA enrichment
  10. 2026-07-28 01:32 UTCEG score recompute
  11. 2026-07-28 01:32 UTCGHSA enrichment
  12. 2026-07-28 00:22 UTCEG score recompute
  13. 2026-07-28 00:22 UTCGHSA enrichment
  14. 2026-07-27 14:14 UTCEPSS rescore
  15. 2026-07-27 11:50 UTCGHSA enrichment
  16. 2026-07-26 23:20 UTCEG score recompute
  17. 2026-07-26 23:19 UTCGHSA enrichment
  18. 2026-07-26 14:54 UTCEPSS rescore
  19. 2026-07-26 14:54 UTCEPSS rescore
  20. 2026-07-26 10:49 UTCEG score recompute
  21. 2026-07-26 10:49 UTCGHSA enrichment
  22. 2026-07-25 14:18 UTCEPSS rescore
  23. 2026-07-25 14:18 UTCEPSS rescore
  24. 2026-07-24 14:18 UTCEPSS rescore
  25. 2026-07-24 14:18 UTCEPSS rescore
Show 17 more
  1. 2026-07-23 14:18 UTCEPSS rescore
  2. 2026-07-23 14:18 UTCEPSS rescore
  3. 2026-07-23 03:22 UTCEG score recompute
  4. 2026-07-22 23:41 UTCEG score recompute
  5. 2026-07-22 23:41 UTCGHSA enrichment
  6. 2026-07-22 14:08 UTCEPSS rescore
  7. 2026-07-22 14:08 UTCEPSS rescore
  8. 2026-07-21 15:25 UTCEPSS rescore
  9. 2026-07-21 15:25 UTCEPSS rescore
  10. 2026-07-20 16:43 UTCEG score recompute
  11. 2026-07-20 16:43 UTCGHSA enrichment
  12. 2026-07-20 16:05 UTCEG score recompute
  13. 2026-07-20 16:05 UTCGHSA enrichment
  14. 2026-07-20 12:37 UTCEG score recompute
  15. 2026-07-20 12:37 UTCGHSA enrichment
  16. 2026-07-20 12:18 UTCEG score recompute
  17. 2026-07-20 12:17 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-63757?
CVE-2026-63757 is a high vulnerability published on July 20, 2026. SurrealDB versions before 3.1.0 contain a session hijacking vulnerability where the HTTP /rpc sessions method returns attached session UUIDs without authentication and accepts arbitrary session fields with no ownership verification. Unauthenticated attackers can enumerate session UUIDs and…
When was CVE-2026-63757 disclosed?
CVE-2026-63757 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-2026-63757 actively exploited?
CVE-2026-63757 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 71.9% of all scored CVEs.
What is the CVSS score of CVE-2026-63757?
CVE-2026-63757 has a CVSS v4.0 base score of 8.8 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-63757?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-63757, 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

Explore the affected products and dependency analysis for CVE-2026-63757

Explore →

Is Your Infrastructure Affected by CVE-2026-63757?

EchelonGraph automatically scans your cloud infrastructure and maps CVE exposure using blast radius analysis.

Start Free Scan →Browse All CVEs