CVE-2026-32281

HIGHNVD 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
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0.4%CVSS: 7.5Exploit: None knownExposed services: Not assessed

A fix is available — apply it.

Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the VerifyOptions.Roots CertPool, or in the system certificate pool.

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%
Exploitation0% × 40%
Automatability100% × 15%
EPSS PROB
0.4%
EPSS %ILE
27th
KEV
Not listed

Published

April 8, 2026

Last Modified

July 25, 2026

Advisory Details (4)

Auto-updated Jun 10, 2026
Patch available.
generic

GO-2026-4946 - Go Packages

https://pkg.go.dev/vuln/GO-2026-4946
generic
https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU
generic

crypto/x509: quadratic work in policy validation with large PolicyMappings (CVE-2026-32281) · Issue #78281 · golang/go · GitHub

https://go.dev/issue/78281
generic
https://go.dev/cl/758061

Vendor Advisories for CVE-2026-32281(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
redhatetcd-0:3.3.23-22.el8ost2026-08-13redhat
redhatcompliance/openshift-file-integrity-rhel8-operator:17864394492026-08-12redhat
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
redhatopenshift-logging/loki-rhel9-operator:17847478842026-07-29redhat
redhatgrafana-0:9.0.9-12.el9_22026-07-29redhat
redhatgrafana-pcp-0:5.1.1-5.el9_2.12026-07-29redhat
redhatgolang-0:1.25.9-1.el9_42026-07-29redhat
redhatosbuild-composer-0:76.1-6.el9_22026-07-29redhat
redhatgrafana-0:9.2.10-27.el9_42026-07-29redhat
redhatosbuild-composer-0:101.3-4.el9_4.32026-07-29redhat
redhatgrafana-pcp-0:5.1.1-8.el9_42026-07-29redhat
redhatgolang-0:1.25.9-1.el9_22026-07-29redhat
redhatrhelai3/disk-image-cuda-rhel9:17851631842026-07-27redhat
redhatrhelai3/bootc-azure-rocm-rhel9:17847368222026-07-22redhat
redhatrhelai3/bootc-gcp-cuda-rhel9:17847369412026-07-22redhat
redhatrhelai3/bootc-rocm-rhel9:17846702042026-07-22redhat
redhatrhelai3/bootc-aws-cuda-rhel9:17847368572026-07-22redhat
redhatrhelai3/bootc-cuda-rhel9:17846696802026-07-22redhat
redhatrhelai3/bootc-azure-cuda-rhel9:17847367982026-07-22redhat
redhatrhoai/odh-rhel9-operator:17840049142026-07-21redhat
redhatweb-terminal/web-terminal-exec-rhel9:17842961272026-07-20redhat
redhatweb-terminal/web-terminal-exec-rhel9:17842476102026-07-20redhat
redhatweb-terminal/web-terminal-exec-rhel9:17842957672026-07-20redhat
redhatrhmtc/openshift-migration-controller-rhel8:17839533722026-07-20redhat

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 / 26× 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 248 total refreshes for this CVE.

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

Related CVEs(same product + same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-32281?
CVE-2026-32281 is a high vulnerability published on April 8, 2026. Validating certificate chains which use policies is unexpectedly inefficient when certificates in the chain contain a very large number of policy mappings, possibly causing denial of service. This only affects validation of otherwise trusted certificate chains, issued by a root CA in the…
When was CVE-2026-32281 disclosed?
CVE-2026-32281 was first published on April 8, 2026, with the most recent update on July 25, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-32281 actively exploited?
CVE-2026-32281 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0.4% probability of exploitation in the next 30 days (27th percentile of EPSS-scored CVEs).
What is the CVSS score of CVE-2026-32281?
CVE-2026-32281 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-32281?
A fix for CVE-2026-32281 is available: update to the fixed version the vendor names in its advisory. The vendor advisories EchelonGraph has for CVE-2026-32281 are linked in the Vendor Advisories panel on this page.

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