Information Exposure Affecting golang-1.19 package, versions *


Severity

Recommended
0.0
high
0
10

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Threat Intelligence

EPSS
1.25% (66th percentile)

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  • Snyk IDSNYK-ECHOLATEST-GOLANG119-18766817
  • published14 Aug 2026
  • disclosed5 Dec 2023

Introduced: 5 Dec 2023

CVE-2023-45287  (opens in a new tab)
CWE-203  (opens in a new tab)

How to fix?

There is no fixed version for Echo:latest golang-1.19.

NVD Description

Note: Versions mentioned in the description apply only to the upstream golang-1.19 package and not the golang-1.19 package as distributed by Echo. See How to fix? for Echo:latest relevant fixed versions and status.

Before Go 1.20, the RSA based TLS key exchanges used the math/big library, which is not constant time. RSA blinding was applied to prevent timing attacks, but analysis shows this may not have been fully effective. In particular it appears as if the removal of PKCS#1 padding may leak timing information, which in turn could be used to recover session key bits. In Go 1.20, the crypto/tls library switched to a fully constant time RSA implementation, which we do not believe exhibits any timing side channels.

CVSS Base Scores

version 3.1