CVE-2026-66008

MEDIUMPre-NVD 6.36.3—
EchelonGraph scoreMEDIUM confidence

This medium-severity CVE scores 6.3 under the CNA's CVSS (NVD's own analysis pending). EPSS exploit probability: 0.3%, top 75% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: cna:vulncheck, epss
Trending — 3 sources updated this week
6.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 6.3Exploit: None knownExposed: 0

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

Parse Server versions >= 9.0.0 before 9.10.0-alpha.6 and >= 8.2.2 before 8.6.87 disclose Pointer and Relation target class names through GraphQL validation and input-coercion error messages when public schema introspection is disabled (graphQLPublicIntrospection: false, the default). Because these errors are produced before authentication, authorization, or any resolver runs, an unauthenticated client possessing only the public application ID can trigger errors on Pointer or Relation fields to reconstruct hidden schema class names, partially defeating the schema-hiding protection. Only schema metadata (class names) is exposed; no object data, credentials, or user records are disclosed.

CVSS v3
6.3
EG Score
6.3(medium)
EG Risk
28(Track)
EG Risk 28/100SSVC: 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
Severity63% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
25%
KEV
Not listed

Published

July 24, 2026

Last Modified

July 28, 2026

Advisory Details (2)

Auto-updated Jul 24, 2026
Patch available. Sources: github.
generic

Parse Server 9.0.0 Information Disclosure via GraphQL Error Messages | Advisories | VulnCheck

https://www.vulncheck.com/advisories/parse-server-information-disclosure-via-graphql-error-messages
github Patch Available

GraphQL error messages disclose pointer and relation target class names when public introspection is disabled · Advisory · parse-community/parse-server · GitHub

https://github.com/parse-community/parse-server/security/advisories/GHSA-r2g6-4f6j-f6rf

Vendor Advisories for CVE-2026-66008(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 11× in last 7d / 61× 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 135 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-66008?
CVE-2026-66008 is a medium vulnerability published on July 24, 2026. Parse Server versions >= 9.0.0 before 9.10.0-alpha.6 and >= 8.2.2 before 8.6.87 disclose Pointer and Relation target class names through GraphQL validation and input-coercion error messages when public schema introspection is disabled (graphQLPublicIntrospection: false, the default). Because these…
When was CVE-2026-66008 disclosed?
CVE-2026-66008 was first published in the National Vulnerability Database on July 24, 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-2026-66008 actively exploited?
CVE-2026-66008 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 74.9% of all scored CVEs.
What is the CVSS score of CVE-2026-66008?
CVE-2026-66008 has a CVSS v4.0 base score of 6.3 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-66008?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-66008, 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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