Uncaught Exception Affecting std/crypto/tls package, versions <1.15.14>=1.16.0-0 <1.16.6
Threat Intelligence
Snyk has a proof-of-concept or detailed explanation of how to exploit this vulnerability.
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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Test your applications- Snyk IDSNYK-GOLANG-STDCRYPTOTLS-14565353
- published6 Jan 2026
- disclosed17 Feb 2022
- creditImre Rad
Introduced: 17 Feb 2022
CVE-2021-34558 (opens in a new tab)How to fix?
Upgrade std/crypto/tls to version 1.15.14, 1.16.6 or higher.
Overview
std/crypto/tls is a Go standard library package std/crypto/tls
Affected versions of this package are vulnerable to Uncaught Exception.
Go Vulnerability Report:
via the crypto/tls process. An attacker can cause a panic and potentially disrupt service by providing a certificate of an incorrect type for the negotiated parameters during a TLS handshake. This can also impact HTTPS requests made by affected clients.