CVE-2026-22677

Hermes WebUI < 0.51.44 Path Traversal via Session Import Endpoint

MEDIUM
6.5
CVSS Score
Published: May 13, 2026 at 07:08 PM UTC
Updated: October 26, 2026 at 05:10 PM UTC
2 products affected across 2 vendorsHermes Web UIHermes WebUI

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Severity
MEDIUM6.5
Exploit prediction
EPSS 0.4%
SSVC
No known exploit

Description

Hermes WebUI prior to 0.51.44 - Release T 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 can supply a blocked filesystem root in the workspace field and subsequently use relative paths in the session file API to access any file readable by the WebUI process.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

v < 0.51.44
Affected range stops below 0.51.44, so it looks safe — our inference, not a vendor statement
v < 0.51.44
Affected range stops below 0.51.44, so it looks safe — our inference, not a vendor statement
Vendor states this is fixed in f00cb74f776f22f02f5eb6b39dfb389f87cc7fd3 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

6.5MEDIUMVulnCheck
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-22

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