Vulnerability · Published Aug 27, 2026 · Assigned by VulnCheck

CVE-2026-81716openssl_encrypt before 1.4.9 Plugin Sandbox Path Traversal

Medium 5.2

In plain English

A medium-severity path traversal in openssl_encrypt from jahlives. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)5.2Medium

Exploit odds (30 days)0.3%top 82.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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 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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
PyPI	openssl-encrypt	1.4.9	PYSEC-2026-3800

Affected products (as reported)

Vendor	Product	Versions
jahlives	openssl_encrypt	0 – before 1.4.9

Weakness: CWE-22 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

References

GitHub Security Advisory (GHSA-vr4h-5xqv-xxxf) vendor-advisory
VulnCheck Advisory: openssl_encrypt before 1.4.9 Plugin Sandbox Path Traversal third-party-advisory