CVE-2026-81668

MEDIUMPre-NVD 5.45.4—
EchelonGraph scoreHIGH confidence

Score 5.4 from GitHub Security Advisory published 2026-08-27. a secondary CVSS source baseline 5.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
5.4EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 5.4Exploit: None knownExposed: 0

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

A flaw was found in Katello where the Content View Filter Rules API does not properly enforce authorization on the parent Content View Filter. An authenticated, low-privileged user with Content View permissions in one organization may be able to access and modify filter rules belonging to a Content View Filter in another organization by supplying that filter's identifier. This can result in unauthorized disclosure of filter-rule information and unauthorized changes to unpublished Content View filter configuration.

CVSS v3
5.4
EG Score
5.4(high)
EG Risk
29(Track)
EG Risk 29/100SSVC: 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
Severity54% × 45%
Exploitation0% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
4%
KEV
Not listed

Published

August 27, 2026

Last Modified

August 28, 2026

Advisory Details (2)

Auto-updated Aug 27, 2026
Patch available. Sources: redhat.
redhat

2524928 – (CVE-2026-81668) CVE-2026-81668 rubygem-katello: Cross-tenant Content View Filter rule access and modification via unauthorized parent filter lookup

https://bugzilla.redhat.com/show_bug.cgi?id=2524928
redhat Patch Available

CVE-2026-81668 - Red Hat Customer Portal

Affected: Red Hat Enterprise Linux 8 or OpenShift Container Platform 4, is affected by this vulnerability and a fix may be released to a

https://access.redhat.com/security/cve/CVE-2026-81668

Vendor Advisories for CVE-2026-81668(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 18× in last 7d / 68× 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. 2026-09-20 20:16 UTCEPSS rescore
  2. 2026-09-20 20:06 UTCGHSA enrichment
  3. 2026-09-19 20:48 UTCEG score recompute
  4. 2026-09-19 20:48 UTCGHSA enrichment
  5. 2026-09-18 21:30 UTCEG score recompute
  6. 2026-09-18 21:30 UTCGHSA enrichment
  7. 2026-09-18 19:28 UTCEPSS rescore
  8. 2026-09-17 20:55 UTCEG score recompute
  9. 2026-09-17 20:55 UTCGHSA enrichment
  10. 2026-09-16 20:19 UTCEG score recompute
  11. 2026-09-16 20:19 UTCGHSA enrichment
  12. 2026-09-16 14:08 UTCEPSS rescore
  13. 2026-09-16 05:15 UTCEPSS rescore
  14. 2026-09-15 20:58 UTCEG score recompute
  15. 2026-09-15 20:58 UTCGHSA enrichment
  16. 2026-09-15 03:12 UTCEPSS rescore
  17. 2026-09-15 03:12 UTCEPSS rescore
  18. 2026-09-14 21:14 UTCGHSA enrichment
  19. 2026-09-13 21:56 UTCEG score recompute
  20. 2026-09-13 21:56 UTCGHSA enrichment
  21. 2026-09-12 22:38 UTCEG score recompute
  22. 2026-09-12 22:38 UTCGHSA enrichment
  23. 2026-09-11 23:20 UTCEG score recompute
  24. 2026-09-11 23:20 UTCGHSA enrichment
  25. 2026-09-11 14:53 UTCEPSS rescore
Show 43 more
  1. 2026-09-11 14:53 UTCEPSS rescore
  2. 2026-09-10 23:18 UTCEG score recompute
  3. 2026-09-10 23:18 UTCGHSA enrichment
  4. 2026-09-10 00:00 UTCGHSA enrichment
  5. 2026-09-09 00:42 UTCEG score recompute
  6. 2026-09-09 00:42 UTCGHSA enrichment
  7. 2026-09-08 22:01 UTCEPSS rescore
  8. 2026-09-07 16:59 UTCEG score recompute
  9. 2026-09-07 16:59 UTCGHSA enrichment
  10. 2026-09-06 17:42 UTCEG score recompute
  11. 2026-09-06 17:42 UTCGHSA enrichment
  12. 2026-09-06 13:48 UTCEPSS rescore
  13. 2026-09-05 18:24 UTCEG score recompute
  14. 2026-09-05 18:24 UTCGHSA enrichment
  15. 2026-09-05 15:31 UTCEPSS rescore
  16. 2026-09-04 19:07 UTCEG score recompute
  17. 2026-09-04 19:07 UTCGHSA enrichment
  18. 2026-09-04 05:07 UTCEPSS rescore
  19. 2026-09-03 19:48 UTCGHSA enrichment
  20. 2026-09-02 20:30 UTCEG score recompute
  21. 2026-09-02 20:30 UTCGHSA enrichment
  22. 2026-09-02 14:12 UTCEPSS rescore
  23. 2026-09-01 18:54 UTCEG score recompute
  24. 2026-09-01 18:54 UTCGHSA enrichment
  25. 2026-09-01 13:54 UTCEPSS rescore
  26. 2026-09-01 04:40 UTCEPSS rescore
  27. 2026-09-01 04:40 UTCEPSS rescore
  28. 2026-08-31 19:35 UTCGHSA enrichment
  29. 2026-08-30 19:59 UTCEG score recompute
  30. 2026-08-30 19:59 UTCGHSA enrichment
  31. 2026-08-30 19:18 UTCEPSS rescore
  32. 2026-08-30 19:17 UTCEPSS rescore
  33. 2026-08-30 01:22 UTCEPSS rescore
  34. 2026-08-29 20:40 UTCEG score recompute
  35. 2026-08-29 20:40 UTCGHSA enrichment
  36. 2026-08-28 21:42 UTCEPSS rescore
  37. 2026-08-28 21:22 UTCGHSA enrichment
  38. 2026-08-28 16:49 UTCGHSA enrichment
  39. 2026-08-27 17:27 UTCEG score recompute
  40. 2026-08-27 17:27 UTCGHSA enrichment
  41. 2026-08-27 13:32 UTCEG score recompute
  42. 2026-08-27 12:59 UTCEG score recompute
  43. 2026-08-27 12:58 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-81668?
CVE-2026-81668 is a medium vulnerability published on August 27, 2026. A flaw was found in Katello where the Content View Filter Rules API does not properly enforce authorization on the parent Content View Filter. An authenticated, low-privileged user with Content View permissions in one organization may be able to access and modify filter rules belonging to a Content…
When was CVE-2026-81668 disclosed?
CVE-2026-81668 was first published in the National Vulnerability Database on August 27, 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-2026-81668 actively exploited?
CVE-2026-81668 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 96.0% of all scored CVEs.
What is the CVSS score of CVE-2026-81668?
CVE-2026-81668 has a CVSS v3 base score of 5.4 (NVD).
How do I remediate CVE-2026-81668?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-81668, 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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