Vulnerability details
CVE-2023-54356
kyverno kyverno
Kyverno before 1.9.5 Sweet32 Medium Strength Cipher Suites
CVSS 4.0
9.3Critical
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 3.7Low | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| kyverno | kyverno | v < 1.9.5, 1.10.0 | CVEProject cvelistV5 (CNA) |
References and advisories
2
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Details
- Published
- 2026-09-01
- Last updated
- 2026-10-08
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.2%
Probability of exploitation in 30 days
9.8%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-326Inadequate Encryption Strength