CVE-2026-72537

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. 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 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.

A privilege escalation vulnerability in Authentik Security authentik through 2026.5.6 allows an attacker with a source-scoped SCIM provisioning token to take over any user account including superusers by provisioning a SCIM user that matches an existing local user by username. The SCIM user ingest function adopts pre-existing local accounts by username without validating scope boundaries. An attacker can rewrite or delete any account, including the superuser, using only a limited provisioning credential.

CVSS v3
8.8
EG Score
8.8(high)
EG Risk
40(Track)
EG Risk 40/100SSVC: 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%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
22%
KEV
Not listed

Published

August 11, 2026

Last Modified

August 11, 2026

Advisory Details (1)

Auto-updated Aug 11, 2026
No patch confirmed yet.
generic

GitHub - goauthentik/authentik: The authentication glue you need. · GitHub

https://github.com/goauthentik/authentik

Vendor Advisories for CVE-2026-72537(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 31× in last 7d / 48× 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. 2026-08-21 03:44 UTCEG score recompute
  2. 2026-08-21 03:44 UTCGHSA enrichment
  3. 2026-08-20 22:56 UTCEPSS rescore
  4. 2026-08-20 16:48 UTCGHSA enrichment
  5. 2026-08-20 05:38 UTCGHSA enrichment
  6. 2026-08-19 18:42 UTCEG score recompute
  7. 2026-08-19 18:42 UTCGHSA enrichment
  8. 2026-08-19 17:04 UTCEPSS rescore
  9. 2026-08-19 07:20 UTCGHSA enrichment
  10. 2026-08-18 20:25 UTCEG score recompute
  11. 2026-08-18 20:25 UTCGHSA enrichment
  12. 2026-08-18 13:49 UTCEPSS rescore
  13. 2026-08-18 13:49 UTCEPSS rescore
  14. 2026-08-18 09:26 UTCGHSA enrichment
  15. 2026-08-17 22:30 UTCEG score recompute
  16. 2026-08-17 22:30 UTCGHSA enrichment
  17. 2026-08-17 13:47 UTCEPSS rescore
  18. 2026-08-17 11:33 UTCGHSA enrichment
  19. 2026-08-17 00:38 UTCEG score recompute
  20. 2026-08-17 00:38 UTCGHSA enrichment
  21. 2026-08-16 14:56 UTCEPSS rescore
  22. 2026-08-16 14:56 UTCEPSS rescore
  23. 2026-08-16 13:42 UTCGHSA enrichment
  24. 2026-08-16 02:46 UTCEG score recompute
  25. 2026-08-16 02:46 UTCGHSA enrichment
Show 23 more
  1. 2026-08-16 02:15 UTCEPSS rescore
  2. 2026-08-15 15:50 UTCGHSA enrichment
  3. 2026-08-15 04:54 UTCEG score recompute
  4. 2026-08-15 04:54 UTCGHSA enrichment
  5. 2026-08-15 01:31 UTCEPSS rescore
  6. 2026-08-14 17:57 UTCGHSA enrichment
  7. 2026-08-14 07:01 UTCEG score recompute
  8. 2026-08-14 07:01 UTCGHSA enrichment
  9. 2026-08-13 22:00 UTCEPSS rescore
  10. 2026-08-13 20:05 UTCGHSA enrichment
  11. 2026-08-13 09:09 UTCGHSA enrichment
  12. 2026-08-12 22:13 UTCEG score recompute
  13. 2026-08-12 22:13 UTCGHSA enrichment
  14. 2026-08-12 13:51 UTCEPSS rescore
  15. 2026-08-12 11:18 UTCGHSA enrichment
  16. 2026-08-12 00:22 UTCGHSA enrichment
  17. 2026-08-11 13:25 UTCEG score recompute
  18. 2026-08-11 13:25 UTCGHSA enrichment
  19. 2026-08-11 12:57 UTCEG score recompute
  20. 2026-08-11 12:57 UTCGHSA enrichment
  21. 2026-08-11 12:26 UTCEG score recompute
  22. 2026-08-11 11:22 UTCEG score recompute
  23. 2026-08-11 11:22 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-72537?
CVE-2026-72537 is a high vulnerability published on August 11, 2026. A privilege escalation vulnerability in Authentik Security authentik through 2026.5.6 allows an attacker with a source-scoped SCIM provisioning token to take over any user account including superusers by provisioning a SCIM user that matches an existing local user by username. The SCIM user ingest…
When was CVE-2026-72537 disclosed?
CVE-2026-72537 was first published in the National Vulnerability Database on August 11, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-72537 actively exploited?
CVE-2026-72537 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 78.2% of all scored CVEs.
What is the CVSS score of CVE-2026-72537?
CVE-2026-72537 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-72537?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-72537, 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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