What is CVE-2026-50558?

CVE-2026-50558 is a medium-severity vulnerability in Brightio Penelope, classified under Path Traversal. CVSS score: 5.9/10. Published 2026-07-29.

How severe is CVE-2026-50558?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Path Traversal in Brightio Penelope

CVE-2026-50558

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 s…

Vulnerability class: Path Traversal (Directory Traversal)

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:L.

Affected products

Brightio Penelope — versions < 0.20.0

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_MISC)
security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-50558?: CVE-2026-50558 is a medium-severity vulnerability in Brightio Penelope, classified under Path Traversal. CVSS score: 5.9/10. Published 2026-07-29.
How severe is CVE-2026-50558?: Medium severity. CVSS v3 base score is 5.9 out of 10.