Vulnerability Details CVE-2026-81699
openssl_encrypt versions before 1.4.9 fail to properly validate key derivation function costs in crafted files, allowing attackers to trigger unbounded memory and CPU exhaustion during pre-authentication processing. Attackers can supply malicious files with excessive KDF parameters to exhaust system resources and crash or wedge the process before password verification occurs.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.004
EPSS Ranking 28.3%
CVSS Severity
CVSS v3 Score 7.5
References
Products affected by CVE-2026-81699
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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
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cpe:2.3:a:jahlives:openssl_encrypt:1.4.0
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cpe:2.3:a:jahlives:openssl_encrypt:1.4.1
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cpe:2.3:a:jahlives:openssl_encrypt:1.4.2
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cpe:2.3:a:jahlives:openssl_encrypt:1.4.3
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cpe:2.3:a:jahlives:openssl_encrypt:1.4.4
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cpe:2.3:a:jahlives:openssl_encrypt:1.4.5
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cpe:2.3:a:jahlives:openssl_encrypt:1.4.6
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cpe:2.3:a:jahlives:openssl_encrypt:1.4.7
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cpe:2.3:a:jahlives:openssl_encrypt:1.4.8