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Vulnerability record · CVE-2026-32280 · published 8 April 2026

CVE-2026-32280: Golang go allocation without limits vulnerability

Golang · Go

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.

7.5 CVSS 3.1 High EPSS 0.70% · top 48.6% CWE-770 · Allocation without limits
7.5CVSS 3.1 base score
0.70%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
198References
18 Sep 2026Last modified by NVD

Description

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:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://go.dev/cl/758320 Patch
https://go.dev/issue/78282 Issue Tracking
https://groups.google.com/g/golang-announce/c/0uYbvbPZRWU Mailing ListRelease Notes
https://pkg.go.dev/vuln/GO-2026-4947 Vendor Advisory
https://access.redhat.com/errata/RHSA-2026:10217
https://access.redhat.com/errata/RHSA-2026:10219
https://access.redhat.com/errata/RHSA-2026:10704
https://access.redhat.com/errata/RHSA-2026:11507
https://access.redhat.com/errata/RHSA-2026:11514
https://access.redhat.com/errata/RHSA-2026:11688
https://access.redhat.com/errata/RHSA-2026:13545
https://access.redhat.com/errata/RHSA-2026:13791
https://access.redhat.com/errata/RHSA-2026:13826
https://access.redhat.com/errata/RHSA-2026:13829
https://access.redhat.com/errata/RHSA-2026:14020
https://access.redhat.com/errata/RHSA-2026:14162
https://access.redhat.com/errata/RHSA-2026:14200
https://access.redhat.com/errata/RHSA-2026:14391
https://access.redhat.com/errata/RHSA-2026:15980
https://access.redhat.com/errata/RHSA-2026:16021
https://access.redhat.com/errata/RHSA-2026:16024
https://access.redhat.com/errata/RHSA-2026:16101
https://access.redhat.com/errata/RHSA-2026:16476
https://access.redhat.com/errata/RHSA-2026:16477
https://access.redhat.com/errata/RHSA-2026:16505
https://access.redhat.com/errata/RHSA-2026:16508
https://access.redhat.com/errata/RHSA-2026:16532
https://access.redhat.com/errata/RHSA-2026:16534
https://access.redhat.com/errata/RHSA-2026:16535
https://access.redhat.com/errata/RHSA-2026:16537
https://access.redhat.com/errata/RHSA-2026:16542
https://access.redhat.com/errata/RHSA-2026:16874
https://access.redhat.com/errata/RHSA-2026:16875
https://access.redhat.com/errata/RHSA-2026:17084
https://access.redhat.com/errata/RHSA-2026:17287
https://access.redhat.com/errata/RHSA-2026:18027
https://access.redhat.com/errata/RHSA-2026:18032
https://access.redhat.com/errata/RHSA-2026:19133
https://access.redhat.com/errata/RHSA-2026:19135
https://access.redhat.com/errata/RHSA-2026:19144

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-32280), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.