Improper Certificate Validation Affecting std/crypto/x509 package, versions <1.12.16>=1.13.0-0 <1.13.7
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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- published6 Jan 2026
- disclosed6 Jul 2022
- creditProject Wycheproof
Introduced: 6 Jul 2022
CVE-2020-7919 (opens in a new tab)How to fix?
Upgrade std/crypto/x509 to version 1.12.16, 1.13.7 or higher.
Overview
std/crypto/x509 is a Go standard library package std/crypto/x509
Affected versions of this package are vulnerable to Improper Certificate Validation.
Go Vulnerability Report:
On 32-bit architectures, a malformed input to crypto/x509 or the ASN.1 parsing functions of golang.org/x/crypto/cryptobyte can lead to a panic.The malformed certificate can be delivered via a crypto/tls connection to a client, or to a server that accepts client certificates. net/http clients can be made to crash by an HTTPS server, while net/http servers that accept client certificates will recover the panic and are unaffected.