CVE-2026-32280

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-04-08. NVD baseline CVSS 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: epss, ghsa, nvd
7.5
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 7.5Exploit: NoneExposed: 0

A fix is available — apply it.

During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.

CVSS v3
7.5
EG Score
7.5(medium)
EPSS
45.3%
KEV
Not listed

Published

April 8, 2026

Last Modified

July 10, 2026

Advisory Details (4)

Auto-updated Jun 11, 2026
No patch confirmed yet.
generic

GO-2026-4947 - Go Packages

https://pkg.go.dev/vuln/GO-2026-4947
generic
https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU
generic

crypto/x509: excessive chain-building work in Verify with many candidate parents (CVE-2026-32280) · Issue #78282 · golang/go · GitHub

https://go.dev/issue/78282
generic
https://go.dev/cl/758320

Vendor Advisories for CVE-2026-32280(20)

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

Patch Availability(29)

Vendor / EcosystemFixed in / PatchReleasedSource
redhathawtio-operator-container2026-06-10redhat
redhatrhacm2/subctl-rhel9:17802385632026-06-10redhat
redhatskopeo-2:1.18.1-6.rhaos4.19.el92026-06-10redhat
redhatrhoai/odh-rhel9-operator:17805138402026-06-10redhat
redhatreceptor-0:1.6.5-1.el9ap2026-06-09redhat
redhatyggdrasil-0:0.4.9-5.el10_22026-06-09redhat
redhatquay/quay-rhel8:17808913952026-06-09redhat
redhatopenshift-builds/openshift-builds-waiters-rhel9:17803742282026-06-08redhat
redhatpodman-7:5.8.2-3.el10_22026-06-08redhat
redhatrhtas/client-server-rhel9:17803995822026-06-08redhat
redhatrhc-1:0.2.7-1.el9_6.42026-06-08redhat
redhatdelve-0:1.25.2-4.el10_02026-06-04redhat
redhatmulticluster-globalhub/multicluster-globalhub-agent-rhel9:17803208092026-06-04redhat
redhatquay/quay-rhel8:17798114732026-06-04redhat
redhatdelve-0:1.26.1-2.el10_22026-06-04redhat
redhatosbuild-composer-0:132.2-7.el9_62026-06-03redhat
redhatweb-terminal/web-terminal-exec-rhel9:17804250802026-06-03redhat
redhatquay/quay-rhel8:17798222612026-06-03redhat
redhatweb-terminal/web-terminal-exec-rhel9:17804249282026-06-03redhat
redhatweb-terminal/web-terminal-exec-rhel9:17804248292026-06-03redhat
redhatskopeo-2:1.16.1-5.rhaos4.18.el82026-06-03redhat
redhatweb-terminal/web-terminal-exec-rhel9:17804250772026-06-03redhat
redhatweb-terminal/web-terminal-exec-rhel9:17804233392026-06-03redhat
redhatrhc-1:0.3.2-4.el10_02026-06-03redhat
redhatopenshift-logging/eventrouter-rhel9:17800516402026-06-03redhat
redhatmulticluster-engine/assisted-service-9-rhel9:17801066332026-06-02redhat
redhatquay/quay-rhel9:17799222052026-06-02redhat
redhatrh-lightspeed-runtimes/runtimes-inventory-rhel9-operator:1.0.3-17799961972026-06-02redhat
redhatmulticluster-engine/assisted-service-9-rhel9:17802970562026-06-02redhat

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

(1 across 1 ecosystem)
Go(1)
PackageVulnerable rangeFixed inDependents
stdlib—1.26.2—

Weakness Classification(1)

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

All Vendor Advisories

(25)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Data Freshness Timeline

(refreshed 8× in last 7d / 38× 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 107 total refreshes for this CVE.

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

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-32280?
CVE-2026-32280 is a high vulnerability published on April 8, 2026. During chain building, the amount of work that is done is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to a denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.
When was CVE-2026-32280 disclosed?
CVE-2026-32280 was first published in the National Vulnerability Database on April 8, 2026, with the most recent update on July 10, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-32280 actively exploited?
CVE-2026-32280 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 45.3% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-32280?
CVE-2026-32280 has a CVSS v3.1 base score of 7.5 (CISA-ADP / Vulnrichment enrichment; NVD's own analysis pending).
How do I remediate CVE-2026-32280?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-32280, 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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