CVE-2026-32280
High
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.
SeverityHigh
CVSS7.5
Exploit probability—
ProductGo
PublishedApr 8, 2026
First seenApr 8, 2026
Weakness typeCWE-770Allocation of resources without limits
How to fix
Update
- golang go1.25.9, 1.26.2 or later
- stdlib1.25.9, 1.26.2 or later
Vendor advisories
- access.redhat.com/errata/RHSA-2026:24762
- access.redhat.com/errata/RHSA-2026:41019
- access.redhat.com/errata/RHSA-2026:16101
- access.redhat.com/errata/RHSA-2026:54191
- access.redhat.com/errata/RHSA-2026:24761
- access.redhat.com/errata/RHSA-2026:54757
- access.redhat.com/errata/RHSA-2026:59830
- access.redhat.com/errata/RHSA-2026:65838
- access.redhat.com/errata/RHSA-2026:28886
- access.redhat.com/errata/RHSA-2026:56785
- access.redhat.com/errata/RHSA-2026:28961
- access.redhat.com/errata/RHSA-2026:56910
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| golang go | v < 1.25.9, 1.26.0 ≤ v < 1.26.2 | 1.25.9, 1.26.2 |
| stdlibGo | v < 1.25.9, 1.26.0-0 ≤ v < 1.26.2 | 1.25.9, 1.26.2 |
Check your version
Choose the product and enter the version you run to see whether it falls in the affected range.
In the Intelligence 360 plan
Attack Surface Management
See the assets tied to your domains, the technologies they run and known vulnerabilities in one list.