CVE-2026-1584

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-04-09. a secondary CVSS source baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, secondary
Trending — 4 sources updated this week
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and resulting in a remote Denial of Service (DoS) condition.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
49(Track)
EG Risk 49/100SSVC: 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
Severity75% × 45%
Exploitation1% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
1%
EPSS %ILE
69%
KEV
Not listed

Published

April 9, 2026

Last Modified

September 1, 2026

Advisory Details (3)

Auto-updated May 3, 2026
Patch available. Sources: redhat.
redhat Patch Available

2435258 – (CVE-2026-1584) CVE-2026-1584 gnutls: gnutls: Remote Denial of Service via crafted ClientHello with invalid PSK binder

https://bugzilla.redhat.com/show_bug.cgi?id=2435258
redhat Patch Available

cve-details

https://access.redhat.com/security/cve/CVE-2026-1584
redhat Patch Available
https://access.redhat.com/errata/RHSA-2026:7477

Vendor Advisories for CVE-2026-1584(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 / EcosystemFixed in / PatchReleasedSource
redhatgnutls-main-3.8.12-1.1.hum12026-04-10redhat

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

(6 across 6 ecosystems)
Alpine:v3.20(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.12-r0—
Alpine:v3.21(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.12-r0—
Alpine:v3.22(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.12-r0—
Alpine:v3.23(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.12-r0—
Alpine:v3.24(1)
PackageVulnerable rangeFixed inDependents
gnutls—3.8.12-r0—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
gnutls283.8.10-1 ... 3.8.9-3 (7 versions)3.8.12-1—

Weakness Classification(1)

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

Data Freshness Timeline

(refreshed 18× in last 7d / 87× 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 234 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-1584?
CVE-2026-1584 is a high vulnerability published on April 9, 2026. A flaw was found in gnutls. A remote, unauthenticated attacker can exploit this vulnerability by sending a specially crafted ClientHello message with an invalid Pre-Shared Key (PSK) binder value during the TLS handshake. This can lead to a NULL pointer dereference, causing the server to crash and…
When was CVE-2026-1584 disclosed?
CVE-2026-1584 was first published in the National Vulnerability Database on April 9, 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-2026-1584 actively exploited?
CVE-2026-1584 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 31.0% of all scored CVEs.
What is the CVSS score of CVE-2026-1584?
CVE-2026-1584 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-1584?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-1584, 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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