Detections
Analytics
CVE-2026-50558
medium
Description
Penelope Shell Handler is a post-exploitation shell handler for authorized security testing. Prior to 0.20.0, the Unix download() implementation in penelope.py used tar.extractall(local_download_folder) on tar archives returned by remote sessions without validating member paths, allowing a malicious or compromised session to write files outside the intended download directory and potentially overwrite ~/.penelope/peneloperc. This issue is fixed in version 0.20.0.
References
https://github.com/brightio/penelope/security/advisories/GHSA-f42x-p2mx-hm8r
https://github.com/brightio/penelope/releases/tag/v0.20.0
https://github.com/brightio/penelope/commit/a040afb5db32c7e80b5e8a2f9b2164cf911cfa62