CVE-2026-74882
High · 7.5CVSS
7.5
EPSS
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Published
Aug 17, 2026
CISA due date
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The record
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.
Affected packages
| Ecosystem | Package | Introduced | Fixed |
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