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 — Patch released 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
48%
KEV
Not listed

Published

April 8, 2026

Last Modified

September 18, 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
redhatosbuild-composer-0:75-10.el8_82026-09-17redhat
redhatskopeo-2:1.11.3-7.rhaos4.13.el82026-09-17redhat
redhatgit-lfs-0:3.2.0-2.el9_2.102026-09-14redhat
redhattripleo-ansible-0:3.3.1-17.1.20260603190918.8debef3.el9ost2026-09-10redhat
redhatimage-builder-0:52.1-1.el9_8.22026-09-09redhat
redhatimage-builder-0:52.1-1.el10_2.22026-09-08redhat
redhatcri-tools-0:1.30.0-9.el82026-09-03redhat
redhatskopeo-2:1.9.4-10.rhaos4.12.el92026-09-03redhat
redhatopenshift4/ose-sdn-rhel8:17867520502026-09-03redhat
redhatopenshift4/ose-ansible-operator:17867522962026-09-03redhat
redhatrunc-4:1.2.9-1.el9_4.22026-09-01redhat
redhatrunc-4:1.2.9-3.el9_6.12026-09-01redhat
redhatcontainer-native-virtualization/virt-api-rhel9:17872270592026-08-31redhat
redhatrhoai/odh-trainer-rhel9:17870890492026-08-27redhat
redhatopenshift4/ose-sdn-rhel8:17870028072026-08-26redhat
redhatose-gcp-gcr-image-credential-provider-0:4.15.0-202608131733.p2.gfc50272.assembly.stream.el82026-08-26redhat
redhatose-aws-ecr-image-credential-provider-0:4.14.0-202608131802.p2.g9a7820e.assembly.stream.el82026-08-26redhat
redhatskopeo-2:1.14.5-8.rhaos4.16.el82026-08-26redhat
redhatcri-tools-0:1.31.1-7.el82026-08-26redhat
redhatopenshift4/ose-ansible-rhel9-operator:17867883312026-08-26redhat
redhatopenshift4/ose-ansible-rhel9-operator:17867544252026-08-26redhat
redhatopenshift4/ose-sdn-rhel9:17870551352026-08-26redhat
redhatopenshift4/ose-ansible-rhel9-operator:17871052022026-08-26redhat
redhatopenshift4/ose-ansible-operator:17870280972026-08-26redhat
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
redhatoadp/oadp-velero-rhel9:17851808782026-08-06redhat
redhatcontainer-tools:rhel8-8060020260803064027.ad008a3a2026-08-06redhat
redhatosbuild-composer-0:165.1-4.el9_82026-08-04redhat

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 32× in last 7d / 127× 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 394 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 19:27 UTCEPSS rescore
  3. 2026-09-18 13:18 UTCVendor advisory
  4. 2026-09-18 13:18 UTCGHSA enrichment
  5. 2026-09-18 12:20 UTCEG score recompute
  6. 2026-09-18 12:20 UTCVendor advisory
  7. 2026-09-18 12:20 UTCGHSA enrichment
  8. 2026-09-17 19:30 UTCEPSS rescore
  9. 2026-09-17 12:19 UTCVendor advisory
  10. 2026-09-17 12:19 UTCGHSA enrichment
  11. 2026-09-17 12:11 UTCEG score recompute
  12. 2026-09-17 12:11 UTCVendor advisory
  13. 2026-09-17 12:11 UTCGHSA enrichment
  14. 2026-09-16 14:08 UTCEPSS rescore
  15. 2026-09-16 13:48 UTCVendor advisory
  16. 2026-09-16 13:48 UTCGHSA enrichment
  17. 2026-09-16 12:21 UTCEG score recompute
  18. 2026-09-16 12:21 UTCVendor advisory
  19. 2026-09-16 12:21 UTCGHSA enrichment
  20. 2026-09-16 05:15 UTCEPSS rescore
  21. 2026-09-15 12:32 UTCVendor advisory
  22. 2026-09-15 12:32 UTCGHSA enrichment
  23. 2026-09-15 12:14 UTCEG score recompute
  24. 2026-09-15 12:14 UTCVendor advisory
  25. 2026-09-15 12:14 UTCGHSA enrichment
Show 75 more
  1. 2026-09-14 13:39 UTCVendor advisory
  2. 2026-09-14 13:39 UTCGHSA enrichment
  3. 2026-09-14 12:35 UTCEG score recompute
  4. 2026-09-14 12:35 UTCVendor advisory
  5. 2026-09-14 12:35 UTCGHSA enrichment
  6. 2026-09-13 16:47 UTCEPSS rescore
  7. 2026-09-12 15:01 UTCEPSS rescore
  8. 2026-09-11 14:52 UTCEPSS rescore
  9. 2026-09-11 13:25 UTCVendor advisory
  10. 2026-09-11 13:25 UTCGHSA enrichment
  11. 2026-09-11 12:25 UTCEG score recompute
  12. 2026-09-11 12:25 UTCVendor advisory
  13. 2026-09-11 12:25 UTCGHSA enrichment
  14. 2026-09-10 13:22 UTCVendor advisory
  15. 2026-09-10 13:22 UTCGHSA enrichment
  16. 2026-09-10 12:28 UTCEG score recompute
  17. 2026-09-10 12:28 UTCVendor advisory
  18. 2026-09-10 12:28 UTCGHSA enrichment
  19. 2026-09-10 09:34 UTCEPSS rescore
  20. 2026-09-09 13:42 UTCVendor advisory
  21. 2026-09-09 13:42 UTCGHSA enrichment
  22. 2026-09-09 12:40 UTCEG score recompute
  23. 2026-09-09 12:40 UTCVendor advisory
  24. 2026-09-09 12:40 UTCGHSA enrichment
  25. 2026-09-08 22:00 UTCEPSS rescore
  26. 2026-09-07 16:01 UTCEPSS rescore
  27. 2026-09-07 14:00 UTCVendor advisory
  28. 2026-09-07 14:00 UTCGHSA enrichment
  29. 2026-09-07 13:17 UTCEG score recompute
  30. 2026-09-07 13:17 UTCVendor advisory
  31. 2026-09-07 13:16 UTCGHSA enrichment
  32. 2026-09-06 13:47 UTCEPSS rescore
  33. 2026-09-06 13:47 UTCEPSS rescore
  34. 2026-09-04 13:29 UTCVendor advisory
  35. 2026-09-04 13:29 UTCGHSA enrichment
  36. 2026-09-04 12:23 UTCEG score recompute
  37. 2026-09-04 12:23 UTCVendor advisory
  38. 2026-09-04 12:23 UTCGHSA enrichment
  39. 2026-09-04 05:06 UTCEPSS rescore
  40. 2026-09-03 13:21 UTCVendor advisory
  41. 2026-09-03 13:21 UTCGHSA enrichment
  42. 2026-09-03 12:29 UTCEG score recompute
  43. 2026-09-03 12:29 UTCVendor advisory
  44. 2026-09-03 12:29 UTCGHSA enrichment
  45. 2026-09-02 14:11 UTCEPSS rescore
  46. 2026-09-02 13:43 UTCVendor advisory
  47. 2026-09-02 13:43 UTCGHSA enrichment
  48. 2026-09-02 12:39 UTCEG score recompute
  49. 2026-09-02 12:39 UTCVendor advisory
  50. 2026-09-02 12:39 UTCGHSA enrichment
  51. 2026-09-01 13:53 UTCEPSS rescore
  52. 2026-09-01 13:51 UTCVendor advisory
  53. 2026-09-01 13:50 UTCGHSA enrichment
  54. 2026-09-01 12:23 UTCEG score recompute
  55. 2026-09-01 12:23 UTCVendor advisory
  56. 2026-09-01 12:23 UTCGHSA enrichment
  57. 2026-09-01 04:39 UTCEPSS rescore
  58. 2026-09-01 04:39 UTCEPSS rescore
  59. 2026-08-30 19:17 UTCEPSS rescore
  60. 2026-08-30 01:22 UTCEPSS rescore
  61. 2026-08-28 21:41 UTCEPSS rescore
  62. 2026-08-28 16:48 UTCVendor advisory
  63. 2026-08-28 16:48 UTCGHSA enrichment
  64. 2026-08-28 16:01 UTCEG score recompute
  65. 2026-08-28 16:01 UTCVendor advisory
  66. 2026-08-28 16:00 UTCGHSA enrichment
  67. 2026-08-27 14:25 UTCEPSS rescore
  68. 2026-08-27 13:36 UTCVendor advisory
  69. 2026-08-27 13:36 UTCGHSA enrichment
  70. 2026-08-27 13:03 UTCVendor advisory
  71. 2026-08-27 13:03 UTCGHSA enrichment
  72. 2026-08-26 16:12 UTCEG score recompute
  73. 2026-08-26 16:12 UTCVendor advisory
  74. 2026-08-26 16:12 UTCGHSA enrichment
  75. 2026-08-26 14:46 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 September 18, 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 52.0% 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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