SEPTEMBER 14, 2026
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Case File

CVE-2023-54356

LOW · CVSS 3.7 EPSS 0.15% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-01 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

Versions 1.9.4 and earlier of Kyverno are vulnerable due to the support of insecure 3DES cipher suites on their TLS endpoints, which can be exploited through the Sweet32 attack. This vulnerability allows attackers to potentially recover small amounts of plaintext from long-lived TLS connections under heavy traffic conditions. Organizations using affected versions should prioritize upgrading to Kyverno 1.9.5 or 1.10.0 to mitigate this risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2023-54356
Severity
LOW
CVSS
3.7
EPSS
0.15%

Original NVD 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.