CVE-2026-57915

HIGHPre-NVD 7.37.3—
EchelonGraph scoreMEDIUM confidence

Score 7.3 from GitHub Security Advisory (severity: HIGH) published 2026-06-26. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
7.3EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.5%CVSS: 7.3Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

It is possible to bypass the Kerberos pre-authentication check in Apache Kerby by sending a PA-DATA with an unrecognized or unsupported type. Users are recommended to upgrade to version 2.1.2, which fixes this issue.

CVSS v3
7.3
EG Score
7.3HIGHmedium confidence
EG Risk
48
EG Risk 48/100

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
Severity73% × 45%
Exploitation1% × 40%
Automatability100% × 15%
EPSS PROB
0.5%
EPSS %ILE
42nd
KEV
Not listed

Published

June 26, 2026

Last Modified

August 3, 2026

Advisory Details (1)

Auto-updated Jun 26, 2026
Patch available.
generic
https://lists.apache.org/thread/1y3glgh3kzwoxo5m2lq504cjlh1dsrfh

Vendor Advisories for CVE-2026-57915(2)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFix (by version range) / PatchReleasedSource
redhatkerb-server2026-09-21redhat

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(2)

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

Data Freshness Timeline

(refreshed 7× in last 7d / 35× 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 251 total refreshes for this CVE.

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

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Frequently asked(5)

What is CVE-2026-57915?
CVE-2026-57915 is a high vulnerability published on June 26, 2026. It is possible to bypass the Kerberos pre-authentication check in Apache Kerby by sending a PA-DATA with an unrecognized or unsupported type. Users are recommended to upgrade to version 2.1.2, which fixes this issue.
When was CVE-2026-57915 disclosed?
CVE-2026-57915 was first published on June 26, 2026, with the most recent update on August 3, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-57915 actively exploited?
CVE-2026-57915 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.5% probability of exploitation in the next 30 days (42nd percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-57915?
CVE-2026-57915 has a CVSS v3.1 base score of 7.3 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-57915?
A fix for CVE-2026-57915 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-57915 are linked in the Vendor Advisories panel on this page.

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