{"id":"CVE-2026-121587","kind":"vulnerability","aliases":["CVE-2026-121587"],"related":[],"title":"Coolify: unauthenticated webhooks leak application names across all teams","description":"Coolify before 4.1.1 contains an information disclosure vulnerability that allows unauthenticated attackers to enumerate application names across all teams via manual GitHub, GitLab, Bitbucket and Gitea webhooks. Attackers can send a repository name of % or empty with a common branch like main, exploiting unescaped LIKE wildcards to receive every matching application name before signature verification.","summary":"Coolify before 4.1.1 has manual GitHub, GitLab, Bitbucket and Gitea webhook endpoints that accept a wildcard repository name before signature checks. An unauthenticated attacker can list the names of applications belonging to every team on the instance.","severity":"medium","cvss":6.9,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["coolify","runtime","self-hosted","webhooks"],"not_affected_if":["managed-hosting","webhooks-not-exposed"],"how_to_check":"- Check the Coolify version: `coolify --version` or the version shown in the Coolify dashboard, and compare it with `4.1.1`.\n- Note whether manual Git webhooks (GitHub, GitLab, Bitbucket, Gitea) are configured on the instance.","fix":"- Coolify: upgrade to `4.1.1` or later.","status":"open","published_at":"2026-11-03T17:18:11+00:00","first_seen_at":"2026-11-03T17:21:56+00:00","triaged_at":"2026-11-03T17:24:07+00:00","updated_at":"2026-11-03T17:24:07+00:00","category":"runtime","confidence":0.7,"triage":{"at":"2026-11-03T17:24:07Z","model":"claude-haiku-5-5","output":{"fix":"- Coolify: upgrade to `4.1.1` or later.","reach":"internet","title":"Coolify: unauthenticated webhooks leak application names across all teams","impact":"low","summary":"Coolify before 4.1.1 has manual GitHub, GitLab, Bitbucket and Gitea webhook endpoints that accept a wildcard repository name before signature checks. An unauthenticated attacker can list the names of applications belonging to every team on the instance.","audience":"businesses","category":"runtime","nicknames":[],"who_cares":["coolify","self-hosted","webhooks"],"confidence":0.7,"fix_status":"available","needs_auth":"no","worst_case":"Unauthenticated attacker lists application names across all teams","analyst_note":"","how_to_check":"- Check the Coolify version: `coolify --version` or the version shown in the Coolify dashboard, and compare it with `4.1.1`.\n- Note whether manual Git webhooks (GitHub, GitLab, Bitbucket, Gitea) are configured on the instance.","plain_action":"","needs_analyst":false,"not_affected_if":["managed-hosting","webhooks-not-exposed"],"who_is_affected":"Teams that self-host Coolify before 4.1.1 and expose its webhook endpoints to the internet are exposed. The flaw is an information leak of application names only; the sources do not say whether code or secrets are reachable. Instances on managed hosting or on a private network that blocks webhook traffic can skip it.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"medium"},"cost_usd":0.0007,"input_tokens":4218,"output_tokens":556,"severity_before":"medium"},"analyst_status":null,"analyst_note":null,"search":"'-121587':12A,15A '-2026':11A,14A '4.1.1':24B,61C 'accept':35B 'across':7A,75C 'allow':68C 'applic':5A,51B,73C,109C 'attack':45B,70C,86C 'belong':52B 'bitbucket':29B,82C 'branch':98C 'check':42B 'common':97C 'contain':62C 'coolifi':1A,16B,22B,59C 'cve':10A,13A 'disclosur':65C 'empti':94C 'endpoint':33B 'enumer':72C 'everi':54B,107C 'exploit':101C 'gitea':31B,84C 'github':27B,80C 'gitlab':28B,81C 'host':20B 'inform':64C 'instanc':58B 'leak':4A 'like':99C,103C 'list':47B 'main':100C 'manual':26B,79C 'match':108C 'name':6A,39B,49B,74C,91C,110C 'receiv':106C 'repositori':38B,90C 'runtim':17B 'self':19B 'self-host':18B 'send':88C 'signatur':41B,112C 'team':9A,55B,77C 'unauthent':2A,44B,69C 'unescap':102C 'verif':113C 'via':78C 'vulner':66C 'webhook':3A,21B,32B,85C 'wildcard':37B,104C","nicknames":[],"mitigations":[],"who_affected":"Teams that self-host Coolify before 4.1.1 and expose its webhook endpoints to the internet are exposed. The flaw is an information leak of application names only; the sources do not say whether code or secrets are reachable. Instances on managed hosting or on a private network that blocks webhook traffic can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["coolify","medium","runtime","selfhosted","webhooks"],"first_public_at":"2026-11-03T17:18:11+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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-2026-121587","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121587","severity":null,"published_at":"2026-11-03T17:18:11+00:00","modified_at":"2026-11-03T17:18:11+00:00","first_seen_at":"2026-11-03T17:21:56+00:00","fetched_at":"2026-11-03T17:21:56+00:00","note":null}],"documents":[{"id":59248,"url":"https://github.com/coollabsio/coolify/commit/809d9b21fa9609de2ce9b49bb838c079598da876","title":"Patch: github.com","kind":"other","source":"nvd","publisher":"vendor","text":null,"published_at":null,"relation":"fix","confidence":null,"note":"Patch: github.com"},{"id":59249,"url":"https://github.com/coollabsio/coolify/commit/c1518ba1c0be36da42b6cef06df4b042f5733b01","title":"Patch: github.com","kind":"other","source":"nvd","publisher":"vendor","text":null,"published_at":null,"relation":"fix","confidence":null,"note":"Patch: github.com"},{"id":59250,"url":"https://github.com/coollabsio/coolify/releases/tag/v4.1.1","title":"Release notes: github.com","kind":"release","source":"nvd","publisher":"vendor","text":null,"published_at":null,"relation":"fix","confidence":null,"note":"Release notes: github.com"},{"id":59251,"url":"https://www.vulncheck.com/advisories/coolify-before-4.1.1-application-name-enumeration-via-manual-webhook-endpoints","title":"Third-party advisory: www.vulncheck.com","kind":"advisory","source":"nvd","publisher":"research","text":null,"published_at":null,"relation":"advisory","confidence":null,"note":"Third-party advisory: www.vulncheck.com"}],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}