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%CVSS: 7.5Exploit: None knownExposed: 0

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
7.5(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%
Exploitation0% × 40%
Automatability100% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
29%
KEV
Not listed

Published

April 8, 2026

Last Modified

July 25, 2026

Advisory Details (4)

Auto-updated Jun 10, 2026
No patch confirmed yet.
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 / EcosystemFixed in / 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 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 7× in last 7d / 30× 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 230 total refreshes for this CVE.

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

Related CVEs(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 in the National Vulnerability Database 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% probability of exploitation in the next 30 days, which ranks it in the top 70.7% of all 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?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-32281, 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-2026-32281

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