CVE Catalog

CVE-2026-32280

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.62%

47th percentile - higher than 47% of all known CVEs

Summary

During chain building, the amount of work is not correctly limited when a large number of intermediate certificates are passed in VerifyOptions.Intermediates, which can lead to denial of service. This affects both direct users of crypto/x509 and users of crypto/tls.

Risk Assessment

An attacker can overload the server by providing a large number of intermediate certificates, causing denial of service.

Recommendation

Update Go to a patched version and limit the number of intermediate certificates accepted during verification.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS