{"id":"CVE-2026-111715","kind":"vulnerability","aliases":["CVE-2026-111715"],"related":[],"title":"Arkon: wiki graph endpoint leaks other departments' page metadata to employees","description":"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.","summary":"Arkon through 0.9.2 lacks an authorization check on GET /api/wiki/graph, so an authenticated employee can pass a foreign slug. The response exposes wiki page slugs, titles, types and link edges from other departments up to depth 3.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["arkon","other","self-hosted","wiki"],"not_affected_if":["single-department-deployment"],"how_to_check":"- unknown","fix":"- unknown","status":"open","published_at":"2026-10-16T18:17:55+00:00","first_seen_at":"2026-10-23T21:57:14+00:00","triaged_at":"2026-10-25T04:27:00+00:00","updated_at":"2026-10-25T04:27:00+00:00","category":"other","confidence":0.6,"triage":{"at":"2026-10-25T04:27:00Z","model":"claude-haiku-5-5","output":{"fix":"- unknown","reach":"network","title":"Arkon: wiki graph endpoint leaks other departments' page metadata to employees","impact":"low","summary":"Arkon through 0.9.2 lacks an authorization check on GET /api/wiki/graph, so an authenticated employee can pass a foreign slug. The response exposes wiki page slugs, titles, types and link edges from other departments up to depth 3.","category":"other","nicknames":[],"who_cares":["arkon","self-hosted","wiki"],"confidence":0.6,"needs_auth":"yes","worst_case":"Authenticated employees read other departments' wiki page metadata and link structure.","analyst_note":"Find the fixed Arkon version and the upstream advisory or commit for the get_neighborhood() scope check; the NVD entry alone gives no fix or check.","how_to_check":"- unknown","needs_analyst":true,"not_affected_if":["single-department-deployment"],"who_is_affected":"Teams running Arkon through 0.9.2 with multiple departments sharing one wiki, where employees hold wiki:read:own_dept permission. Single-department or single-tenant installs have less to lose from this flaw. The sources do not say which Arkon release fixes it.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000566,"input_tokens":3350,"output_tokens":462,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-111715':14A,17A '-2026':13A,16A '/api/wiki/graph':33B,71C '0.9.2':26B,63C '3':60B,113C 'arkon':1A,18B,24B,61C 'attack':86C 'authent':36B,74C 'author':29B,67C 'check':30B,100C 'contain':64C 'cve':12A,15A 'depart':7A,56B,78C 'dept':92C 'depth':59B,112C 'edg':53B,109C 'employe':11A,37B,75C 'endpoint':4A 'expos':45B 'foreign':41B,84C 'get':32B,70C,96C 'graph':3A 'host':22B 'lack':27B 'leak':5A 'let':73C 'link':52B,108C 'metadata':9A,80C 'miss':66C 'neighborhood':97C 'obtain':102C 'page':8A,47B,103C 'pass':39B 'permiss':93C 'queri':95C 'read':76C,90C 'respons':44B 'scope':99C 'self':21B 'self-host':20B 'slug':42B,48B,85C,104C 'suppli':82C 'titl':49B,105C 'type':50B,106C 'vulner':68C 'wiki':2A,23B,46B,79C,89C 'without':98C","nicknames":[],"mitigations":[],"who_affected":"Teams running Arkon through 0.9.2 with multiple departments sharing one wiki, where employees hold wiki:read:own_dept permission. Single-department or single-tenant installs have less to lose from this flaw. The sources do not say which Arkon release fixes it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-16T18:17:55+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","cvss_by":"disclosure@vulncheck.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-111715","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-111715","severity":null,"published_at":"2026-10-16T18:17:55+00:00","modified_at":"2026-10-19T15:16:54+00:00","first_seen_at":"2026-10-23T21:57:14+00:00","fetched_at":"2026-10-23T22:28:55+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}