VULNERABILITY INTELLIGENCE

CVE-2026-74882

CVSS score7.5 HIGH
EPSS probability0.17%
CISA KEVNot currently listed
Published2026-08-17
Last modified2026-08-31
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Description

openssl_encrypt versions before 1.4.0 contain an insecure default configuration that trusts the entire RFC 1918 private address space in IntegrityProxyConfig trusted_proxies. Attackers on private networks can forge client certificate headers to bypass mTLS authentication when ProxyAuth validation is relaxed or modified.

Weakness classification

  • disclosure@vulncheck.com: CWE-345

Primary references