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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.6%CVSS: 7.5Exploit: None knownExposed services: Not assessed

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
7.5HIGHmedium confidence
EG Risk
49
EG Risk 49/100

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%
EPSS PROB
0.6%
EPSS %ILE
47th
KEV
Not listed

Published

April 8, 2026

Last Modified

September 18, 2026

Advisory Details (4)

Auto-updated Jun 11, 2026
Patch available.
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 / EcosystemFix (by version range) / 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 rangeFix by version rangeDependents
golang-1.251.25.0-1 ... 1.25.8-1 (9 versions)
  • every version up to 1.25.9-1: fixed in 1.25.9-1
—
golang-1.261.26.0-1, 1.26.1-1, 1.26~rc2-1, 1.26~rc3-1, 1.26~rc3-2
  • every version up to 1.26.2-1: fixed in 1.26.2-1
—
Debian:11(1)
PackageVulnerable rangeFix by version rangeDependents
golang-1.151.15.15-1 ... 1.15.9-6 (10 versions)
  • every version on: no fix on record
—
Debian:12(1)
PackageVulnerable rangeFix by version rangeDependents
golang-1.191.19.10-1 ... 1.19.9-1 (12 versions)
  • every version on: no fix on record
—
Debian:13(1)
PackageVulnerable rangeFix by version rangeDependents
golang-1.241.24.12-1 ... 1.24.9-1 (10 versions)
  • every version on: no fix on record
—
Go(1)
PackageVulnerable rangeFix by version rangeDependents
stdlib—
  • every version up to 1.25.9: fixed in 1.25.9
  • 1.26.0-0 up to 1.26.2: fixed in 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 / 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 410 total refreshes for this CVE.

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

Related CVEs(same product + 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 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 0.6% probability of exploitation in the next 30 days (47th percentile of EPSS-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?
A fix for CVE-2026-32280 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-32280 are linked in the Vendor Advisories panel on this page.

Dependency Blast Radius

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