Vulnerability Details CVE-2026-74882
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.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.001
EPSS Ranking 2.8%
CVSS Severity
CVSS v3 Score 7.5
Products affected by CVE-2026-74882
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cpe:2.3:a:jahlives:openssl_encrypt:0.2.2
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cpe:2.3:a:jahlives:openssl_encrypt:0.2.3
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cpe:2.3:a:jahlives:openssl_encrypt:0.2.4
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cpe:2.3:a:jahlives:openssl_encrypt:0.2.5
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cpe:2.3:a:jahlives:openssl_encrypt:0.2.6
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cpe:2.3:a:jahlives:openssl_encrypt:0.3.0
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cpe:2.3:a:jahlives:openssl_encrypt:0.3.1
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cpe:2.3:a:jahlives:openssl_encrypt:0.3.2
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cpe:2.3:a:jahlives:openssl_encrypt:0.3.3
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cpe:2.3:a:jahlives:openssl_encrypt:0.4.0
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cpe:2.3:a:jahlives:openssl_encrypt:0.4.1
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cpe:2.3:a:jahlives:openssl_encrypt:0.4.2
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cpe:2.3:a:jahlives:openssl_encrypt:0.4.3
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cpe:2.3:a:jahlives:openssl_encrypt:0.4.4
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cpe:2.3:a:jahlives:openssl_encrypt:0.5.0
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cpe:2.3:a:jahlives:openssl_encrypt:0.5.1
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cpe:2.3:a:jahlives:openssl_encrypt:0.5.3
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cpe:2.3:a:jahlives:openssl_encrypt:0.6.0
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cpe:2.3:a:jahlives:openssl_encrypt:0.7.0
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cpe:2.3:a:jahlives:openssl_encrypt:0.7.1
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cpe:2.3:a:jahlives:openssl_encrypt:0.7.2
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cpe:2.3:a:jahlives:openssl_encrypt:0.8.0
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cpe:2.3:a:jahlives:openssl_encrypt:0.8.1
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cpe:2.3:a:jahlives:openssl_encrypt:0.8.2
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cpe:2.3:a:jahlives:openssl_encrypt:0.9.2
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cpe:2.3:a:jahlives:openssl_encrypt:1.0.0
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cpe:2.3:a:jahlives:openssl_encrypt:1.0.1
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cpe:2.3:a:jahlives:openssl_encrypt:1.0.2
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cpe:2.3:a:jahlives:openssl_encrypt:1.0.3
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cpe:2.3:a:jahlives:openssl_encrypt:1.1.0
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cpe:2.3:a:jahlives:openssl_encrypt:1.2.0
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cpe:2.3:a:jahlives:openssl_encrypt:1.2.1
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cpe:2.3:a:jahlives:openssl_encrypt:1.3.0
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cpe:2.3:a:jahlives:openssl_encrypt:1.3.1
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cpe:2.3:a:jahlives:openssl_encrypt:1.3.2
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cpe:2.3:a:jahlives:openssl_encrypt:1.3.3
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cpe:2.3:a:jahlives:openssl_encrypt:1.3.4
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cpe:2.3:a:jahlives:openssl_encrypt:1.3.5
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cpe:2.3:a:jahlives:openssl_encrypt:1.3.6