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 — 4 sources updated 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
53%
KEV
Not listed

Published

May 26, 2026

Last Modified

September 1, 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(17)

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

Patch Availability(17)

Vendor / EcosystemFixed in / PatchReleasedSource
ubuntulibgnutlsxx28 (3.6.13-2ubuntu1.12+esm3) @ focal2026-09-14ubuntu
ubuntulibgnutls30t64 (3.8.12-2ubuntu1.1) @ resolute2026-09-14ubuntu
redhatrhui5/rhua-tp-rhel9:17872412602026-08-24redhat
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_6.22026-06-29redhat
redhatlibtasn1-0:4.13-3.el8_4.12026-06-29redhat
redhatgnutls-0:3.8.3-4.el9_4.62026-06-29redhat
redhatlibtasn1-0:4.13-4.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-0:3.6.16-8.el8_10.62026-05-26redhat
redhatgnutls-0:3.8.10-4.el10_22026-05-26redhat
redhatgnutls-0:3.8.10-4.el9_82026-05-26redhat
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.

Affected Packages

(9 across 9 ecosystems)
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.13-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.13-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.13-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.13-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.13-r0—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
gnutls283.7.1-5 ... 3.7.1-5+deb11u9 (10 versions)3.7.1-5+deb11u10—
Debian:12(1)
PackageVulnerable rangeFixed inDependents
gnutls283.7.9-2 ... 3.7.9-2+deb12u6 (7 versions)3.7.9-2+deb12u7—
Debian:13(1)
PackageVulnerable rangeFixed inDependents
gnutls283.8.9-3, 3.8.9-3+deb13u1, 3.8.9-3+deb13u2, 3.8.9-3+deb13u33.8.9-3+deb13u4—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
gnutls283.8.10-1 ... 3.8.9-3 (11 versions)3.8.13-1—

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 8× in last 7d / 60× 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 272 total refreshes for this CVE.

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

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 September 1, 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 47.4% 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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-42015

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