Allocation of Resources Without Limits or Throttling Affecting std/crypto/tls package, versions <1.19.12>=1.20.0-0 <1.20.7>=1.21.0-0 <1.21.0-rc.4


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
1.59% (74th percentile)

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  • Snyk IDSNYK-GOLANG-STDCRYPTOTLS-14565078
  • published6 Jan 2026
  • disclosed2 Aug 2023
  • creditMateusz Poliwczak

Introduced: 2 Aug 2023

CVE-2023-29409  (opens in a new tab)
CWE-770  (opens in a new tab)

How to fix?

Upgrade std/crypto/tls to version 1.19.12, 1.20.7, 1.21.0-rc.4 or higher.

Overview

std/crypto/tls is a Go standard library package std/crypto/tls

Affected versions of this package are vulnerable to Allocation of Resources Without Limits or Throttling.

Go Vulnerability Report:
via the crypto/tls process. An attacker can cause excessive CPU consumption by presenting certificate chains containing extremely large RSA keys during handshake operations.

CVSS Base Scores

version 4.0
version 3.1