Unrated severityNVD Advisory· Published Sep 1, 2026
Kyverno before 1.9.5 Sweet32 Medium Strength Cipher Suites
CVE-2023-54356
Description
Kyverno versions 1.9.4 and earlier support insecure 3DES cipher suites (TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA and TLS_RSA_WITH_3DES_EDE_CBC_SHA) on their TLS endpoints. These 64-bit block ciphers are vulnerable to the Sweet32 attack (CVE-2016-2183), which, over very long-lived TLS connections carrying large volumes of traffic, could allow an attacker to recover small amounts of plaintext. The issue is fixed in Kyverno 1.9.5 and 1.10.0.
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Affected products
1Patches
Vulnerability mechanics
References
2- github.com/kyverno/kyverno/security/advisories/GHSA-hgv6-w7r3-w4qwmitrevendor-advisory
- www.vulncheck.com/advisories/kyverno-before-1.9.5-sweet32-medium-strength-cipher-suitesmitrethird-party-advisory
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