CVE-2026-15567

HIGHPre-NVD 7.57.5
EchelonGraph scoreMEDIUM confidence

“—” beside the score: it is equal to the CVSS score beside it.

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-08-11. A secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: EPSS, GitHub Security Advisory, a secondary CVSS source
Trending — 4 sources updated this week

Also known asEUVD-2026-55989 (ENISA EUVD) · GHSA-h33j-vrhg-4q7j (GitHub Security Advisories)Source: ENISA EUVD

7.5EG
EchelonGraph verdictPlan a fixRemediate within your standard update timelines at low or medium mission impact and sooner than that at high (the SSVC decision on this page).
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.9%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

A flaw was found in Wildfly. A remote unauthenticated attacker can trigger OutOfMemoryError as CSIv2Util's GSS token decoder reads an attacker-controlled length field without bounds checking and attempts to allocate a byte array of that size.

CVSS v3
7.5
EG Score
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

EG Risk is EchelonGraph's 0–100 priority score. It fuses impact severity (EG Severity, the CVSS base score, never the KEV-floored or EPSS-lifted EG Score) with real-world exploitation and automatability, under weights EchelonGraph set by hand, so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner.

How it’s computed (value × EchelonGraph’s weight)
Severity75% × 45%
Impact severity (EG Severity): CVSS 7.5 of 10. Never the KEV-floored or EPSS-lifted EG Score.
Exploitation1.0% × 40%
FIRST EPSS: the 30-day exploitation probability when EchelonGraph scored this CVE.
Automatability100% × 15%
CISA's SSVC Automatable value: yes (Vulnrichment).
SSVC (CISA's decision table, applied by EchelonGraph): Track at low or medium mission impact; Attend at high (mission-essential systems).
Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE.
Action: A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.
EPSS PROB
0.9%
EPSS %ILE
59th
KEV
Not listed

What the EG score is made of (scorer v4.0: the three questions the 0–10 score mixes, published apart · methodology)

The EG score (7.5): severity, escalated by confirmed exploitation. This CVE's 7.5 is its impact severity (EG Severity), not escalated.

EG Severity
7.5 HIGHCVSS-B, impact only: no KEV listing, EPSS or EG-KEV tier raises it.GitHub Security Advisory CVSS
EG Likelihood
0.9% within 30 daysSource: FIRST EPSS. FIRST's exploitation probability, not an EchelonGraph model.
Confirmed exploitation
None on record (CISA KEV, EG-KEV Tier 1)Reported apart from the likelihood: an observed fact, not a probability.
EG Priority
SSVC Track at medium mission impactTrack at low or medium mission impact; Attend at high (mission-essential systems).CISA BOD 26-04: 14 days if the affected system is publicly exposed; 60 days if it is not.Each input and its source, and whom BOD 26-04 binds: the SSVC and BOD 26-04 blocks below.

SSVC (CISA's decision table, applied by EchelonGraph)Track at low or medium mission impact; Attend at high (mission-essential systems).

A fix is available. Apply it within your standard update timelines at low or medium mission impact and sooner than that at high.

Exploitation none (CISA Vulnrichment) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). All three are CISA's SSVC values (Vulnrichment). EchelonGraph applied CISA's decision table to them; CISA publishes SSVC inputs and the table, not a decision for each CVE. Mission impact is CISA's Mission & Well-being decision point, and only you can judge it. CISA's table makes it high when Mission Prevalence is Essential — the vulnerable component "directly provides capabilities that constitute at least one MEF for at least one entity" (MEF: mission essential function) — or when Public Well-Being Impact is Irreversible: "multiple fatalities are likely", the cyber-physical system "is likely lost or destroyed", "extreme or serious externalities" are imposed on other parties, or social systems such as elections or the financial grid "are destabilized and potentially collapse". CISA's decision table

BOD 26-04 (CISA's remediation timeline, Table 1)14 days if the affected system is publicly exposed; 60 days if it is not.

The score's inputs: In CISA KEV no (CISA's KEV catalog) · Automatable yes (CISA Vulnrichment) · Technical impact partial (CISA Vulnrichment). Whether your system is publicly exposed is yours to answer. BOD 26-04 binds US Federal Civilian Executive Branch agencies; for anyone else it is CISA's published timeline, a reference rather than an obligation. The directive · how EchelonGraph applies it

Published

August 11, 2026

Last Modified

November 1, 2026

Advisory Details (2)

Auto-updated Aug 11, 2026
Patch available. Sources: redhat.
Red Hat

2491620 – (CVE-2026-15567) CVE-2026-15567 wildfly: wildfly-iiop: wildfly-jacorb: Wildfly: Pre-auth denial of service on the IIOP listener

https://bugzilla.redhat.com/show_bug.cgi?id=2491620
Red HatMentions a patch (unverified)

CVE-2026-15567 - 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-2026-15567

Patch Availability(8)

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 16× in last 7d / 84× in last 30d)

Each row is a time one of our pipelines fetched, updated or re-scored this CVE. 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. An arrow marks a change the record states ("CVSS v3 → 9.1"); EPSS and GHSA rows show the values recorded at that time, not what changed (EPSS values are rounded; hover one for the exact figures). Most recent first.

Showing the most recent 100 of 388 refreshes on record for this CVE.

A repeat, a row identical to one the same pipeline wrote less than 10 seconds earlier, is not a separate refresh and is not counted. None are among the latest 100 rows. The 288 oldest rows on record are not shown and were not checked, so the counts can still include repeats.

  1. 2026-11-01 16:34 UTCEPSS rescoreEPSS 0.9% · 59th percentile
  2. 2026-11-01 01:27 UTCEG score recompute
  3. 2026-11-01 01:27 UTCVendor advisory
  4. 2026-11-01 01:27 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  5. 2026-11-01 00:34 UTCEG score recompute
  6. 2026-11-01 00:34 UTCVendor advisory
  7. 2026-11-01 00:33 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  8. 2026-10-31 16:32 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
  9. 2026-10-30 16:33 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
  10. 2026-10-29 16:32 UTCEPSS rescoreEPSS 1.0% · 63rd percentile
  11. 2026-10-29 15:51 UTCEG score recompute
  12. 2026-10-29 15:51 UTCVendor advisory
  13. 2026-10-29 15:51 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  14. 2026-10-28 16:31 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  15. 2026-10-27 16:31 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  16. 2026-10-26 16:30 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  17. 2026-10-25 16:32 UTCEPSS rescoreEPSS 1.0% · 62nd percentile
  18. 2026-10-25 14:47 UTCEG score recompute
  19. 2026-10-24 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  20. 2026-10-23 16:31 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  21. 2026-10-22 20:27 UTCEG score recompute
  22. 2026-10-22 20:27 UTCVendor advisory
  23. 2026-10-22 20:27 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  24. 2026-10-22 20:01 UTCEG score recompute
  25. 2026-10-22 20:01 UTCVendor advisory
Show 75 more
  1. 2026-10-22 20:01 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  2. 2026-10-22 16:33 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  3. 2026-10-21 16:32 UTCEPSS rescoreEPSS 0.5% · 45th percentile
  4. 2026-10-20 20:26 UTCEG score recompute
  5. 2026-10-20 20:26 UTCVendor advisory
  6. 2026-10-20 20:26 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  7. 2026-10-20 19:28 UTCEG score recompute
  8. 2026-10-20 19:28 UTCVendor advisory
  9. 2026-10-20 19:28 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  10. 2026-10-20 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  11. 2026-10-20 15:26 UTCEG score recompute
  12. 2026-10-20 15:26 UTCVendor advisory
  13. 2026-10-20 15:26 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  14. 2026-10-20 14:22 UTCEG score recompute
  15. 2026-10-20 14:22 UTCVendor advisory
  16. 2026-10-20 14:22 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  17. 2026-10-19 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  18. 2026-10-18 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  19. 2026-10-18 05:01 UTCEG score recompute
  20. 2026-10-17 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  21. 2026-10-16 16:40 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  22. 2026-10-15 17:28 UTCEG score recompute
  23. 2026-10-15 17:28 UTCVendor advisory
  24. 2026-10-15 17:27 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  25. 2026-10-15 16:39 UTCEG score recompute
  26. 2026-10-15 16:39 UTCVendor advisory
  27. 2026-10-15 16:39 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  28. 2026-10-15 16:31 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  29. 2026-10-14 16:32 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  30. 2026-10-13 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  31. 2026-10-12 16:33 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  32. 2026-10-12 16:31 UTCEG score recompute
  33. 2026-10-11 20:10 UTCEG score recompute
  34. 2026-10-11 17:22 UTCEG score recompute
  35. 2026-10-11 14:55 UTCEG score recompute
  36. 2026-10-11 13:48 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  37. 2026-10-10 19:59 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  38. 2026-10-09 20:06 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  39. 2026-10-08 17:11 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  40. 2026-10-07 23:47 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  41. 2026-10-07 05:32 UTCVendor advisory
  42. 2026-10-07 05:32 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  43. 2026-10-06 18:05 UTCEG score recompute
  44. 2026-10-06 18:05 UTCVendor advisory
  45. 2026-10-06 18:05 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  46. 2026-10-06 15:17 UTCEPSS rescoreEPSS 0.5% · 44th percentile
  47. 2026-10-05 18:11 UTCEG score recompute
  48. 2026-10-05 18:11 UTCVendor advisory
  49. 2026-10-05 18:10 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  50. 2026-10-05 17:42 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  51. 2026-10-04 23:21 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  52. 2026-10-04 22:47 UTCVendor advisory
  53. 2026-10-04 22:47 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  54. 2026-10-04 09:17 UTCVendor advisory
  55. 2026-10-04 09:17 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  56. 2026-10-03 21:34 UTCEG score recompute
  57. 2026-10-03 21:34 UTCVendor advisory
  58. 2026-10-03 21:34 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  59. 2026-10-03 14:25 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  60. 2026-10-02 19:52 UTCEG score recompute
  61. 2026-10-02 19:52 UTCVendor advisory
  62. 2026-10-02 19:52 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  63. 2026-10-02 08:47 UTCEG score recompute
  64. 2026-10-02 08:47 UTCVendor advisory
  65. 2026-10-02 08:47 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  66. 2026-10-01 19:49 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  67. 2026-10-01 09:31 UTCVendor advisory
  68. 2026-10-01 09:31 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  69. 2026-09-30 22:22 UTCEG score recompute
  70. 2026-09-30 22:22 UTCVendor advisory
  71. 2026-09-30 22:22 UTCGHSA enrichmentGHSA-h33j-vrhg-4q7j · GitHub severity HIGH · GitHub CVSS 7.5
  72. 2026-09-30 15:02 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  73. 2026-09-29 15:20 UTCEPSS rescoreEPSS 0.5% · 43rd percentile
  74. 2026-09-29 05:18 UTCEG score recompute
  75. 2026-09-29 05:18 UTCVendor advisory

Frequently asked(5)

What is CVE-2026-15567?
CVE-2026-15567 is a high-severity vulnerability; its CVE record was published on August 11, 2026. A flaw was found in Wildfly. A remote unauthenticated attacker can trigger OutOfMemoryError as CSIv2Util's GSS token decoder reads an attacker-controlled length field without bounds checking and attempts to allocate a byte array of that size.
When was CVE-2026-15567 made public?
CVE-2026-15567 was made public on August 11, 2026: that is the date its CVE record's CNA, Red Hat, Inc., gives for when the vulnerability was made public. The CVE record itself was published on August 11, 2026. EchelonGraph's copy of the record carries a last-modified date of November 1, 2026; the record at its source may have been updated since.
Is CVE-2026-15567 actively exploited?
CVE-2026-15567 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.9% probability of exploitation in the next 30 days (59th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-15567?
CVE-2026-15567 has a CVSS base score of 7.5 (a secondary CVSS source that NVD displays; NVD's own analysis pending).
How do I remediate CVE-2026-15567?
A fix for CVE-2026-15567 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-15567 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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