What is CVE-2026-44788?

CVE-2026-44788 is a medium-severity vulnerability in Adamhathcock Sharpcompress, classified under Path Traversal. CVSS score: 5.9/10. Published 2026-05-26.

How severe is CVE-2026-44788?

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

Path Traversal in Adamhathcock Sharpcompress

CVE-2026-44788

SharpCompress is a fully managed C# library to deal with many compression types and formats. In 0.47.4 and earlier, a path traversal vulnerability in IArchive.WriteToDirectory() allows a malicious archive to create directories outside the…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.000 (1.9th percentile) — read the EPSS interpretation.

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

Adamhathcock Sharpcompress — versions <= 0.47.4
Sharpcompress_project Sharpcompress

Weakness classification (CWE)

CWE-22 — Path Traversal

References

security-advisories@github.com (x_refsource_CONFIRM, Exploit, Mitigation, Vendor Advisory)

Frequently asked questions

What is CVE-2026-44788?: CVE-2026-44788 is a medium-severity vulnerability in Adamhathcock Sharpcompress, classified under Path Traversal. CVSS score: 5.9/10. Published 2026-05-26.
How severe is CVE-2026-44788?: Medium severity. CVSS v3 base score is 5.9 out of 10.