CVE-2026-22677 — The Session Import Endpoint That Path Traversal

title: CVE-2026-22677 - Hermes WebUI Session Import Path Traversal
id: scw-2026-05-13-ai-1
status: experimental
level: high
description: |
  Detects the specific session import endpoint used in CVE-2026-22677 with a path traversal attempt in the URI query parameters. This indicates an authenticated attacker attempting to read arbitrary files by exploiting the path traversal vulnerability.
author: SCW Feed Engine (AI-generated)
date: 2026-05-13
references:
  - https://shimiscyberworld.com/posts/nvd-CVE-2026-22677/
tags:
  - attack.initial_access
  - attack.t1190
logsource:
    category: webserver
detection:
  selection:
      cs-uri|contains:
          - '/api/session/import'
      cs-method|exact:
          - 'POST'
      cs-uri-query|contains:
          - '../'
  selection_base:
      cs-uri|contains:
          - '/api/session/import'
  selection_indicators:
      cs-uri-query|contains:
          - '../'
  condition: selection_base AND selection_indicators
falsepositives:
  - Legitimate administrative activity

Source: Shimi's Cyber World · License & reuse