CVE-2026-32280

HIGHPre-NVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

Score 7.5 from GitHub Security Advisory (severity: HIGH) published 2026-04-08. CISA-ADP (Vulnrichment) CVSS v3.1 baseline 7.5; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: cisa-adp, epss, ghsa
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.

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)
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
47%
KEV
Not listed

Published

April 8, 2026

Last Modified

August 25, 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(30)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatopenshift4/ose-ansible-rhel9-operator:17865261392026-08-18redhat
redhatetcd-0:3.3.23-22.el8ost2026-08-13redhat
redhatrhc-worker-script-0:0.11-1.el7_92026-08-12redhat
redhatcontainer-tools:rhel8-8060020260803064027.ad008a3a2026-08-06redhat
redhatoadp/oadp-velero-rhel9:17851808782026-08-06redhat
redhatcontainer-tools:rhel8-8080020260721142025.63b345852026-08-04redhat
redhatosbuild-composer-0:165.1-4.el9_82026-08-04redhat
redhatosbuild-composer-0:165.1-3.el10_2.12026-08-03redhat
redhatrhc-1:0.2.4-8.el9_42026-08-03redhat
redhatrhc-1:0.2.2-1.el9_2.32026-08-03redhat
redhatosbuild-composer-0:101.5-1.el8_102026-07-31redhat
redhatgolang-0:1.25.9-1.el9_42026-07-29redhat
redhatgrafana-0:9.0.9-12.el9_22026-07-29redhat
redhatgrafana-pcp-0:5.1.1-5.el9_2.12026-07-29redhat
redhatopenshift-logging/eventrouter-rhel9:17847478132026-07-29redhat
redhatgolang-0:1.25.9-1.el9_22026-07-29redhat
redhatosbuild-composer-0:101.3-4.el9_4.32026-07-29redhat
redhatgrafana-pcp-0:5.1.1-8.el9_42026-07-29redhat
redhatgrafana-0:9.2.10-27.el9_42026-07-29redhat
redhatosbuild-composer-0:76.1-6.el9_22026-07-29redhat
redhatweb-terminal/web-terminal-exec-rhel9:17842961142026-07-20redhat
redhatweb-terminal/web-terminal-exec-rhel9:17842961272026-07-20redhat
redhatweb-terminal/web-terminal-exec-rhel9:17842960332026-07-20redhat
redhatweb-terminal/web-terminal-exec-rhel9:17842962032026-07-20redhat
redhatweb-terminal/web-terminal-exec-rhel9:17842476102026-07-20redhat
redhatrhmtc/openshift-migration-registry-rhel8:17839142762026-07-20redhat
redhatflightctl-0:1.1.3-1.el9em2026-07-16redhat
redhatrhem/flightctl-ui-rhel10:17841945742026-07-16redhat
redhatrhoso-operators/sg-core-rhel9:17821402972026-07-15redhat
redhatgolang-github-openstack-k8s-operators-os-diff-0:0.1.1-18.0.20260602234716.a95ae05.el9ost2026-07-15redhat

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 5 ecosystems)
Debian:14(2)
PackageVulnerable rangeFixed inDependents
golang-1.251.25.0-1 ... 1.25.8-1 (9 versions)1.25.9-1—
golang-1.261.26.0-1, 1.26.1-1, 1.26~rc2-1, 1.26~rc3-1, 1.26~rc3-21.26.2-1—
Debian:11(1)
PackageVulnerable rangeFixed inDependents
golang-1.151.15.15-1 ... 1.15.9-6 (10 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
golang-1.191.19.10-1 ... 1.19.9-1 (12 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
golang-1.241.24.12-1 ... 1.24.9-1 (10 versions)——
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 25× in last 7d / 158× 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 291 total refreshes for this CVE.

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

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 August 25, 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 1% probability of exploitation in the next 30 days, which ranks it in the top 53.2% of all scored CVEs.
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

See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-32280

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