CVE-2026-18569

LOWPre-NVD 3.73.7—
EchelonGraph scoreMEDIUM confidence

Score 3.7 from GitHub Security Advisory (severity: LOW) published 2026-08-04. the CNA's CVSS baseline 3.7; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cna:redhat, epss, ghsa
Trending — 3 sources updated this week
3.7EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 3.7Exploit: 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 the backchannel logout endpoint of the keycloak-services component, which is part of the Red Hat Build of Keycloak. This component handles authentication and session management for applications. The issue occurs when an OIDC identity provider is configured to skip signature validation. In this specific setup, the system incorrectly accepts logout requests that have no cryptographic signature. An attacker who knows certain technical details about a user's session can use this flaw to force that user to be logged out, potentially disrupting their work.

CVSS v3
3.7
EG Score
3.7(medium)
EG Risk
17(Track)
EG Risk 17/100SSVC: 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
Severity37% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
6%
KEV
Not listed

Published

August 4, 2026

Last Modified

August 31, 2026

References (2)

Vendor Advisories for CVE-2026-18569(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 8× in last 7d / 44× 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. 2026-09-18 19:27 UTCEPSS rescore
  2. 2026-09-18 01:10 UTCEG score recompute
  3. 2026-09-18 01:10 UTCGHSA enrichment
  4. 2026-09-16 14:07 UTCEPSS rescore
  5. 2026-09-16 05:14 UTCEPSS rescore
  6. 2026-09-15 01:43 UTCEG score recompute
  7. 2026-09-15 01:43 UTCGHSA enrichment
  8. 2026-09-13 16:46 UTCEPSS rescore
  9. 2026-09-12 15:00 UTCEPSS rescore
  10. 2026-09-12 01:06 UTCEG score recompute
  11. 2026-09-12 01:06 UTCGHSA enrichment
  12. 2026-09-11 09:36 UTCEPSS rescore
  13. 2026-09-10 09:34 UTCEPSS rescore
  14. 2026-09-09 06:41 UTCEG score recompute
  15. 2026-09-09 06:40 UTCGHSA enrichment
  16. 2026-09-08 22:00 UTCEPSS rescore
  17. 2026-09-07 16:01 UTCEPSS rescore
  18. 2026-09-06 13:47 UTCEPSS rescore
  19. 2026-09-06 11:58 UTCEG score recompute
  20. 2026-09-06 11:58 UTCGHSA enrichment
  21. 2026-09-04 05:06 UTCEPSS rescore
  22. 2026-09-03 17:33 UTCEG score recompute
  23. 2026-09-03 17:33 UTCGHSA enrichment
  24. 2026-09-02 14:11 UTCEPSS rescore
  25. 2026-09-01 13:53 UTCEPSS rescore
Show 53 more
  1. 2026-09-01 04:39 UTCEPSS rescore
  2. 2026-08-31 15:39 UTCEG score recompute
  3. 2026-08-31 15:39 UTCGHSA enrichment
  4. 2026-08-30 19:17 UTCEPSS rescore
  5. 2026-08-30 04:44 UTCEG score recompute
  6. 2026-08-30 04:44 UTCGHSA enrichment
  7. 2026-08-30 01:22 UTCEPSS rescore
  8. 2026-08-28 21:41 UTCEPSS rescore
  9. 2026-08-27 14:25 UTCEPSS rescore
  10. 2026-08-27 10:19 UTCEG score recompute
  11. 2026-08-27 10:19 UTCGHSA enrichment
  12. 2026-08-26 14:46 UTCEPSS rescore
  13. 2026-08-25 13:48 UTCEPSS rescore
  14. 2026-08-24 15:52 UTCEG score recompute
  15. 2026-08-24 15:52 UTCGHSA enrichment
  16. 2026-08-23 00:19 UTCEPSS rescore
  17. 2026-08-21 23:49 UTCEPSS rescore
  18. 2026-08-21 21:28 UTCEG score recompute
  19. 2026-08-21 21:28 UTCGHSA enrichment
  20. 2026-08-19 17:03 UTCEPSS rescore
  21. 2026-08-19 03:03 UTCEG score recompute
  22. 2026-08-19 03:02 UTCGHSA enrichment
  23. 2026-08-18 13:48 UTCEPSS rescore
  24. 2026-08-17 13:47 UTCEPSS rescore
  25. 2026-08-16 14:56 UTCEPSS rescore
  26. 2026-08-16 08:05 UTCEG score recompute
  27. 2026-08-16 08:05 UTCGHSA enrichment
  28. 2026-08-16 02:14 UTCEPSS rescore
  29. 2026-08-15 01:30 UTCEPSS rescore
  30. 2026-08-13 22:00 UTCEPSS rescore
  31. 2026-08-13 13:40 UTCEG score recompute
  32. 2026-08-13 13:40 UTCGHSA enrichment
  33. 2026-08-12 13:50 UTCEPSS rescore
  34. 2026-08-11 13:42 UTCEPSS rescore
  35. 2026-08-11 00:00 UTCEPSS rescore
  36. 2026-08-10 19:10 UTCEG score recompute
  37. 2026-08-10 19:10 UTCGHSA enrichment
  38. 2026-08-09 13:46 UTCEPSS rescore
  39. 2026-08-09 10:15 UTCEG score recompute
  40. 2026-08-09 10:15 UTCGHSA enrichment
  41. 2026-08-08 16:37 UTCEPSS rescore
  42. 2026-08-06 15:50 UTCEG score recompute
  43. 2026-08-06 15:50 UTCGHSA enrichment
  44. 2026-08-06 13:46 UTCEPSS rescore
  45. 2026-08-05 19:17 UTCEPSS rescore
  46. 2026-08-04 15:20 UTCEG score recompute
  47. 2026-08-04 15:20 UTCGHSA enrichment
  48. 2026-08-04 15:10 UTCEPSS rescore
  49. 2026-08-04 14:48 UTCEG score recompute
  50. 2026-08-04 14:48 UTCGHSA enrichment
  51. 2026-08-04 06:30 UTCEG score recompute
  52. 2026-08-04 05:38 UTCEG score recompute
  53. 2026-08-04 05:38 UTCMITRE cvelistV5first tracked

Frequently asked(5)

What is CVE-2026-18569?
CVE-2026-18569 is a low vulnerability published on August 4, 2026. A flaw was found in the backchannel logout endpoint of the keycloak-services component, which is part of the Red Hat Build of Keycloak. This component handles authentication and session management for applications. The issue occurs when an OIDC identity provider is configured to skip signature…
When was CVE-2026-18569 disclosed?
CVE-2026-18569 was first published in the National Vulnerability Database on August 4, 2026, with the most recent update on August 31, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-18569 actively exploited?
CVE-2026-18569 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 94.3% of all scored CVEs.
What is the CVSS score of CVE-2026-18569?
CVE-2026-18569 has a CVSS v4.0 base score of 3.7 (CNA self-assessment; NVD's own analysis pending).
How do I remediate CVE-2026-18569?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-18569, 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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