What is CVE-2026-22677?

CVE-2026-22677 is a medium-severity vulnerability in Nesquena Hermes-webui, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-05-13.

How severe is CVE-2026-22677?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Path Traversal in Nesquena Hermes-webui

CVE-2026-22677

Hermes WebUI prior to 0.51.44 contains a path traversal vulnerability in the session import endpoint that allows authenticated attackers to read arbitrary files by importing a crafted session with an unrestricted workspace value. Attackers…

Vulnerability class: Path Traversal (Directory Traversal)

EPSS: 0.000 (14.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Nesquena Hermes-webui — versions 0, f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3

Weakness classification (CWE)

CWE-22 — Path Traversal

References

disclosure@vulncheck.com (patch)
disclosure@vulncheck.com (issue-tracking)
disclosure@vulncheck.com (release-notes)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-22677?: CVE-2026-22677 is a medium-severity vulnerability in Nesquena Hermes-webui, classified under Path Traversal. CVSS score: 6.5/10. Published 2026-05-13.
How severe is CVE-2026-22677?: Medium severity. CVSS v3 base score is 6.5 out of 10.