{"id":"CVE-2026-113595","kind":"vulnerability","aliases":["CVE-2026-113595"],"related":[],"title":"Sharkord: any signed-in member can replace the server logo","description":"Sharkord before 0.0.26 contains a missing authorization vulnerability in the others.changeLogo tRPC mutation that allows any authenticated member to modify the server logo without the MANAGE_SETTINGS permission. Attackers can remove the current logo and replace it with an uploaded image that is published to every connected client.","summary":"Sharkord before 0.0.26 exposes the others.changeLogo tRPC mutation without checking the MANAGE_SETTINGS permission. Any authenticated member can remove the server logo and upload a replacement that is shown to every connected client.","severity":"medium","cvss":5.3,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["chat","package","self-hosted","sharkord"],"not_affected_if":["already-upgraded","auth-required"],"how_to_check":"- Check the installed Sharkord version; affected if below `0.0.26`\n- Review whether ordinary member accounts exist on the instance who should not change server settings","fix":"- Upgrade Sharkord to `0.0.26` or later\n- unknown whether a workaround exists before upgrading","status":"open","published_at":"2026-10-20T16:17:08+00:00","first_seen_at":"2026-10-23T21:57:20+00:00","triaged_at":"2026-10-25T04:24:42+00:00","updated_at":"2026-10-25T04:24:42+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-25T04:24:42Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Sharkord to `0.0.26` or later\n- unknown whether a workaround exists before upgrading","reach":"network","title":"Sharkord: any signed-in member can replace the server logo","impact":"low","summary":"Sharkord before 0.0.26 exposes the others.changeLogo tRPC mutation without checking the MANAGE_SETTINGS permission. Any authenticated member can remove the server logo and upload a replacement that is shown to every connected client.","category":"package","nicknames":[],"who_cares":["sharkord","self-hosted","chat"],"confidence":0.7,"needs_auth":"yes","worst_case":"Any member replaces the server logo shown to all users","analyst_note":"","how_to_check":"- Check the installed Sharkord version; affected if below `0.0.26`\n- Review whether ordinary member accounts exist on the instance who should not change server settings","needs_analyst":false,"not_affected_if":["auth-required","already-upgraded"],"who_is_affected":"Instances of Sharkord before 0.0.26 that have registered members other than trusted administrators. Exposure requires a valid account, so instances where every user is an administrator carry little added risk. Single-user or administrator-only deployments can skip it after checking the version.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"medium"},"cost_usd":0.000568,"input_tokens":3330,"output_tokens":471,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-113595':14A,17A '-2026':13A,16A '0.0.26':26B,59C 'allow':71C 'attack':85C 'authent':39B,73C 'author':63C 'chat':18B 'check':33B 'client':56B,104C 'connect':55B,103C 'contain':60C 'current':89C 'cve':12A,15A 'everi':54B,102C 'expos':27B 'host':22B 'imag':97C 'logo':11A,45B,79C,90C 'manag':35B,82C 'member':6A,40B,74C 'miss':62C 'modifi':76C 'mutat':31B,69C 'others.changelogo':29B,67C 'packag':19B 'permiss':37B,84C 'publish':100C 'remov':42B,87C 'replac':8A,49B,92C 'self':21B 'self-host':20B 'server':10A,44B,78C 'set':36B,83C 'sharkord':1A,23B,24B,57C 'shown':52B 'sign':4A 'signed-in':3A 'trpc':30B,68C 'upload':47B,96C 'vulner':64C 'without':32B,80C","nicknames":[],"mitigations":[],"who_affected":"Instances of Sharkord before 0.0.26 that have registered members other than trusted administrators. Exposure requires a valid account, so instances where every user is an administrator carry little added risk. Single-user or administrator-only deployments can skip it after checking the version.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-20T16:17:08+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/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-2026-113595","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-113595","severity":null,"published_at":"2026-10-20T16:17:08+00:00","modified_at":"2026-10-23T14:17:32+00:00","first_seen_at":"2026-10-23T21:57:20+00:00","fetched_at":"2026-10-23T22:28:58+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"}