CVE-2026-19611

HIGHPre-NVD 7.47.4—
EchelonGraph scoreMEDIUM 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: 0.6%CVSS: 7.4Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

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
7.4HIGHmedium confidence
EG Risk
34
EG Risk 34/100CISA 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
Severity74% × 45%
Exploitation1% × 40%
Automatability0% × 15%
CISA SSVC: Track at low or medium mission impact; Track* at high (mission-essential systems).
Action: A fix is available. Apply it within your standard update timelines.
EPSS PROB
0.6%
EPSS %ILE
44th
KEV
Not listed

CISA SSVCTrack at low or medium mission impact; Track* at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines.

Exploitation none (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 20, 2026

Last Modified

September 21, 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 26× in last 7d / 110× 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 182 total refreshes for this CVE.

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

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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 on August 20, 2026, with the most recent update on September 21, 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 0.6% probability of exploitation in the next 30 days (44th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-19611?
CVE-2026-19611 has a CVSS base score of 7.4 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-19611?
A fix for CVE-2026-19611 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-19611 are linked in the Vendor Advisories panel on this page.

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