CVE-2026-19611

HIGHPre-NVD 7.47.4—
EchelonGraph scoreHIGH confidence

Score 7.4 from GitHub Security Advisory (severity: HIGH) published 2026-08-20. a secondary CVSS source baseline 7.4; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 3 sources updated this week
7.4EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.4Exploit: 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 WildFly Elytron. Password hashing and verification normalize input with Unicode NFKC, which can collapse fullwidth characters to ASCII equivalents. A remote attacker can more easily guess affected passwords by using an ASCII-only dictionary against accounts whose passwords were intended to include those non-ASCII characters, leading to unauthorized access.

CVSS v3
7.4
EG Score
7.4(high)
EG Risk
33(Track)
EG Risk 33/100SSVC: 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
Severity74% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
28%
KEV
Not listed

Published

August 20, 2026

Last Modified

September 3, 2026

Advisory Details (2)

Auto-updated Aug 20, 2026
Patch available. Sources: redhat.
redhat

2514568 – (CVE-2026-19611) CVE-2026-19611 wildfly-elytron: org.wildfly.security/wildfly-elytron-password-impl: wildfly-elytron: Password keyspace reduction via NFKC fullwidth folding

https://bugzilla.redhat.com/show_bug.cgi?id=2514568
redhat Patch Available

CVE-2026-19611 - 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-2026-19611

Vendor Advisories for CVE-2026-19611(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 27× in last 7d / 125× 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 125 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-19611?
CVE-2026-19611 is a high vulnerability published on August 20, 2026. A flaw was found in WildFly Elytron. Password hashing and verification normalize input with Unicode NFKC, which can collapse fullwidth characters to ASCII equivalents. A remote attacker can more easily guess affected passwords by using an ASCII-only dictionary against accounts whose passwords were…
When was CVE-2026-19611 disclosed?
CVE-2026-19611 was first published in the National Vulnerability Database on August 20, 2026, with the most recent update on September 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-19611 actively exploited?
CVE-2026-19611 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 72.0% of all scored CVEs.
What is the CVSS score of CVE-2026-19611?
CVE-2026-19611 has a CVSS v3 base score of 7.4 (NVD).
How do I remediate CVE-2026-19611?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-19611, 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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