CVE-2026-42015

MEDIUMPre-NVD 5.35.3—
EchelonGraph scoreMEDIUM confidence

Score 5.3 from GitHub Security Advisory published 2026-05-27. a secondary CVSS source baseline 5.3; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — Patch released this week
5.3EG
EchelonGraph verdictMonitorLow exploitation likelihood right now — keep watching.
  • Lower severity and no public exploit yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 5.3Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of service (DoS) or potentially other unspecified impacts.

CVSS v3
5.3
EG Score
5.3(medium)
EG Risk
39(Track)
EG Risk 39/100SSVC: 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
Severity53% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
50%
KEV
Not listed

Published

May 26, 2026

Last Modified

July 24, 2026

Advisory Details (5)

Auto-updated Jun 16, 2026
Patch available. Sources: redhat.
redhat Patch Available

2467678 – (CVE-2026-42015) CVE-2026-42015 gnutls: gnutls: Memory corruption due to off-by-one error in PKCS#12 bag handling

Affected: Red Hat Enterprise Linux 8

https://bugzilla.redhat.com/show_bug.cgi?id=2467678
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-42015
redhat Patch Available

Affected: Red Hat Enterprise Linux 10.

https://access.redhat.com/errata/RHSA-2026:20613
redhat Patch Available

Affected: Red Hat Enterprise Linux 9.

https://access.redhat.com/errata/RHSA-2026:20612
redhat Patch Available

Affected: Red Hat Enterprise Linux 8.

https://access.redhat.com/errata/RHSA-2026:20611

Vendor Advisories for CVE-2026-42015(16)

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

Patch Availability(16)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibgnutlsxx28 (3.4.10-4ubuntu1.9+esm4) @ xenial2026-07-26ubuntu
ubuntulibgnutlsxx28 (3.7.3-4ubuntu1.9) @ jammy2026-07-26ubuntu
redhatgnutls-0:3.3.29-9.el7_9.22026-07-22redhat
redhatgnutls-0:3.7.6-21.el9_2.72026-07-20redhat
redhatlibtasn1-0:4.13-3.el8_4.12026-06-29redhat
redhatgnutls-0:3.8.3-4.el9_4.62026-06-29redhat
redhatlibtasn1-0:4.13-3.el8_6.22026-06-29redhat
redhatlibtasn1-0:4.13-4.el8_8.12026-06-29redhat
redhatgnutls-0:3.8.3-6.el9_6.42026-06-25redhat
redhatdiscovery/discovery-ui-rhel9:17821669522026-06-24redhat
redhatrhui5/rhua-rhel9:17815257392026-06-16redhat
redhatgnutls-0:3.8.9-9.el10_0.192026-06-16redhat
redhatgnutls-0:3.8.10-4.el9_82026-05-26redhat
redhatgnutls-0:3.6.16-8.el8_10.62026-05-26redhat
redhatgnutls-0:3.8.10-4.el10_22026-05-26redhat
redhatgnutls-main-3.8.13-1.hum12026-05-02redhat

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.

Additional Vendor Advisories

(2)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 12× in last 7d / 45× 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 139 total refreshes for this CVE.

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

Frequently asked(5)

What is CVE-2026-42015?
CVE-2026-42015 is a medium vulnerability published on May 26, 2026. A flaw was found in gnutls. An off-by-one error exists in the PKCS#12 bag element bounds check. This vulnerability allows an remote attacker to write past the internal array of a PKCS#12 bag when appending to a bag that already contains 32 elements. This memory corruption could lead to a denial of…
When was CVE-2026-42015 disclosed?
CVE-2026-42015 was first published in the National Vulnerability Database on May 26, 2026, with the most recent update on July 24, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-42015 actively exploited?
CVE-2026-42015 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 49.6% of all scored CVEs.
What is the CVSS score of CVE-2026-42015?
CVE-2026-42015 has a CVSS v3 base score of 5.3 (NVD).
How do I remediate CVE-2026-42015?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-42015, 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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