CVE-2026-75837

CRITICALPre-NVD 9.19.1—
EchelonGraph scoreMEDIUM confidence

Score 9.1 from GitHub Security Advisory (severity: CRITICAL) published 2026-08-18. A secondary CVSS source baseline 9.1; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Elevated
9.1EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 9.1Exploit: Elevated riskExposed services: Not assessed

A fix is available — apply it.

Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with access[admin][super]=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities.

CVSS v3
9.1
EG Score
9.1CRITICALmedium confidence
EG Risk
57
EG Risk 57/100CISA SSVC

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
Severity91% × 45%
Exploitation40% × 40%
Automatability0% × 15%
CISA SSVC: Track at low, Track* at medium and Attend at high mission impact.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.5%
EPSS %ILE
40th
KEV
Not listed

CISA SSVCTrack at low, Track* at medium and Attend at high mission impact.

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation public PoC (CISA Vulnrichment) · Automatable no (CISA Vulnrichment) · Technical impact total (CISA Vulnrichment). Mission impact is CISA's Mission & Well-being decision point, and only you can judge it: high means the affected system is essential to your organisation's mission, or its compromise could cause irreversible harm to people. CISA's decision table

Published

August 18, 2026

Last Modified

September 8, 2026

Advisory Details (2)

Auto-updated Sep 15, 2026
🔬 Proof of concept available. Patch available. Sources: github.
github Patch Available🟡 PoC Available

Missing admin.super guard on core group blueprint access field allows admin.users operator to escalate to super-admin · Advisory · getgrav/grav · GitHub

https://github.com/getgrav/grav/security/advisories/GHSA-xhfv-7758-r9hx
generic

Grav before 2.0.14 Privilege Escalation via Group Access Field | Advisories | VulnCheck

https://www.vulncheck.com/advisories/grav-before-privilege-escalation-via-group-access-field

Vendor Advisories for CVE-2026-75837(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Affected Packages

(1 across 1 ecosystem)
Packagist(1)
PackageVulnerable rangeFix by version rangeDependents
getgrav/grav0.8.0 ... 2.0.9 (348 versions)
  • every version up to 2.0.14: fixed in 2.0.14
—

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 13× in last 7d / 111× 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 246 total refreshes for this CVE.

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

Related CVEs(same product + same CWE)

Frequently asked(5)

What is CVE-2026-75837?
CVE-2026-75837 is a critical vulnerability published on August 18, 2026. Grav before 2.0.14 fails to guard the access field in the core group blueprint with the required security@: admin.super restriction. A delegated admin.users operator can save a group with access[admin][super]=true to escalate to super-admin, gaining scheduler and Twig evaluation capabilities.
When was CVE-2026-75837 disclosed?
CVE-2026-75837 was first published on August 18, 2026, with the most recent update on September 8, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-75837 actively exploited?
CVE-2026-75837 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (40th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-75837?
CVE-2026-75837 has a CVSS base score of 9.1 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-75837?
A fix for CVE-2026-75837 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-75837 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-75837

Explore →

Is Your Infrastructure Affected by CVE-2026-75837?

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

Book a Demo →Browse All CVEs