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TI-2026-75501 Aliases CVE-2026-111715GHSA-h23m-p5hh-g2pm

Missing authorization in Arkon wiki graph API exposes page metadata

Priority MEDIUM 57CWE-639Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Security bypass
Confidentiality · integrity · availability
Low · None · None
Fix status
No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-639.

Summary

Arkon through 0.9.2 from nduckmink has a missing authorization flaw in GET /api/wiki/graph, classified as CWE-639. The endpoint does not check scope, so an authenticated employee with only wiki:read:own_dept permission can supply a foreign slug. That lets the attacker read page slugs, titles, types and link edges up to depth 3 of other departments' wiki pages.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Description from the CNA

Arkon through 0.9.2 contains a missing authorization vulnerability in GET /api/wiki/graph that lets authenticated employees read other departments' wiki metadata by supplying a foreign slug. Attackers with only wiki:read:own_dept permission can query get_neighborhood() without scope checks to obtain page slugs, titles, types and link edges up to depth 3.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00251 16th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
nduckminkarkonup to 0.9.2—No fix listedCNA
  • arkon Vendornduckmink Affected up to 0.9.2 Fixed in — No fix listed CNA

Remediation

The sources list no fixed version for Arkon.

Written with Claude Haiku 5.5 from the sources below · 2026-10-28

Timeline

  1. 2026-10-16 Threatist record created from CVE-2026-111715
  2. 2026-10-16 Alias added: GHSA-h23m-p5hh-g2pm
  3. 2026-10-19 CISA SSVC decision points changed
  4. 2026-10-19 Priority changed: LOW → MEDIUM

References

Advisory 1

Other 2

  • TI-2026-75503 Arkon missing authorization exposes other departments' skill versions CVSS 4.0MEDIUM 5.3
  • TI-2026-75502 Broken access control in Arkon exposes other departments' sources CVSS 4.0MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences