CVE-2026-65897

HIGHPre-NVD 8.88.8—
EchelonGraph scoreMEDIUM confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-07-23. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: Elevated riskExposed: 0

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

Grav API Plugin versions before 1.0.10 fail to validate the groups field in InvitationsController::create(), allowing authenticated api.users.write callers to assign invited accounts to groups that grant api.super permissions. Attackers can create invitation records with elevated group membership, and when accepted, the new account gains full super-admin API access without the inviter holding those permissions.

CVSS v3
8.8
EG Score
8.8(medium)
EG Risk
56(Track*)
EG Risk 56/100SSVC: 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%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
42%
KEV
Not listed

Published

July 23, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Jul 23, 2026
🔬 Proof of concept available. Patch available. Sources: github.
generic

Grav API Plugin 1.0.9 Privilege Escalation via Invitations groups | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-api-plugin-privilege-escalation-via-invitations-groups
github Patch Available🟡 PoC Available

Invitation `groups` field bypasses the super-admin gate applied to `access`, enabling privilege escalation · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-m86m-jjcg-gcvv

Vendor Advisories for CVE-2026-65897(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 22× in last 7d / 109× 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 137 total refreshes for this CVE.

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

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-65897?
CVE-2026-65897 is a high vulnerability published on July 23, 2026. Grav API Plugin versions before 1.0.10 fail to validate the groups field in InvitationsController::create(), allowing authenticated api.users.write callers to assign invited accounts to groups that grant api.super permissions. Attackers can create invitation records with elevated group membership,…
When was CVE-2026-65897 disclosed?
CVE-2026-65897 was first published in the National Vulnerability Database on July 23, 2026, with the most recent update on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-65897 actively exploited?
CVE-2026-65897 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 57.8% of all scored CVEs.
What is the CVSS score of CVE-2026-65897?
CVE-2026-65897 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-65897?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-65897, 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.

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