CVE
CVE-2026-81701
openssl_encrypt before 1.4.9 Arbitrary Code Execution via unsigned plugin
openssl_encrypt versions before 1.4.9 use a denylist to identify trusted built-in plugins, allowing unsigned plugins in top-level plugins/ directories and unknown subdirectories to bypass signature verification. Attackers can place malicious unsigned plugins following documented installation paths to achieve arbitrary code execution in the CLI process with access to passwords and cryptographic keys.
Package Versions Affected
Package Version
patch Availability
No items found.
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CVSS Version
Severity
Base Score
CVSS Version
Score Vector
C
H
U
9.3
-
4.0
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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
C
H
U
0
-
C
H
U
-
Related Resources
No items found.
References
https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/81xxx/CVE-2026-81701.json, https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-wxx9-p55f-wm34, https://nvd.nist.gov/vuln/detail/CVE-2026-81701, https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-arbitrary-code-execution-via-unsigned-plugin