{"id":"CVE-2026-81716","aliases":["PYSEC-2026-3800","GHSA-vr4h-5xqv-xxxf"],"title":"openssl_encrypt (pip: openssl-encrypt) versions before 1.4.9 contain a path traversal flaw in PluginSandbox._is_safe_path, which authoriz…","summary":"openssl_encrypt (pip: openssl-encrypt) versions before 1.4.9 contain a path traversal flaw in PluginSandbox._is_safe_path, which authorized file access using a bare string-prefix match. A sandboxed plugin without the READ_FILES permissio…","severity":"none","vendor":"openssl-encrypt","product":"openssl-encrypt","ecosystem":"pip","affected":["openssl-encrypt < 1.4.9"],"patched":["openssl-encrypt 1.4.9"],"published":"2026-08-27","updated":"2026-09-03","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/PYSEC-2026-3800","references":[{"url":"https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-vr4h-5xqv-xxxf"},{"url":"https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-plugin-sandbox-path-traversal"}],"tags":["osv","pip"],"epss":0.00261,"epssPercentile":0.15891,"ingestedAt":"2026-09-03T19:32:12.324Z","slug":"CVE-2026-81716","body":"## Overview\n\nopenssl_encrypt (pip: openssl-encrypt) versions before 1.4.9 contain a path traversal flaw in PluginSandbox._is_safe_path, which authorized file access using a bare string-prefix match. A sandboxed plugin without the READ_FILES permission could read or write another plugin's directory that merely shares a name prefix (e.g., .../plugins/foobar matching allowed .../plugins/foo), breaking per-plugin isolation within the same user. Fixed by matching each allowed directory exactly or with a trailing path separator.\n\n## Affected packages\n\n- `openssl-encrypt < 1.4.9`\n\n## Remediation\n\nUpgrade to a patched release:\n\n- `openssl-encrypt 1.4.9`","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}