{"id":"CVE-2026-118686","kind":"vulnerability","aliases":["CVE-2026-118686"],"related":[],"title":"EspoCRM: password-redaction regex lets unauthenticated requests exhaust CPU","description":"EspoCRM before 9.3.11 and 10.x before 10.0.8 contains a denial of service vulnerability in which the password-redaction regular expression applied during API error handling consumes excessive CPU on long request bodies. Unauthenticated remote attackers can concurrently send a small number of large API requests to exhaust server workers, making EspoCRM slow or unavailable to legitimate users.","summary":"EspoCRM's password-redaction regular expression, run during API error handling, uses excessive CPU when request bodies are long. An unauthenticated remote attacker can send a few large API requests at once to tie up server workers and make the CRM slow or unavailable.","severity":"high","cvss":8.7,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["espocrm","package","php","self-hosted"],"not_affected_if":["no-public-api","patched-version"],"how_to_check":"- Check the installed EspoCRM version in the application's `package.json` or the admin panel; versions below `9.3.11` or `10.0.8` in the 10.x line are affected\n- Confirm whether the instance is reachable from the internet on its API endpoints","fix":"- Upgrade EspoCRM 9.x to `9.3.11` or later\n- Upgrade EspoCRM 10.x to `10.0.8` or later","status":"open","published_at":"2026-10-28T19:17:35+00:00","first_seen_at":"2026-10-28T19:34:55+00:00","triaged_at":"2026-10-28T19:35:42+00:00","updated_at":"2026-10-28T19:35:42+00:00","category":"package","confidence":0.7,"triage":{"at":"2026-10-28T19:35:42Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade EspoCRM 9.x to `9.3.11` or later\n- Upgrade EspoCRM 10.x to `10.0.8` or later","reach":"internet","title":"EspoCRM: password-redaction regex lets unauthenticated requests exhaust CPU","impact":"low","summary":"EspoCRM's password-redaction regular expression, run during API error handling, uses excessive CPU when request bodies are long. An unauthenticated remote attacker can send a few large API requests at once to tie up server workers and make the CRM slow or unavailable.","category":"package","nicknames":[],"who_cares":["espocrm","self-hosted","php"],"confidence":0.7,"needs_auth":"no","worst_case":"Service slows or becomes unavailable for legitimate users","analyst_note":"","how_to_check":"- Check the installed EspoCRM version in the application's `package.json` or the admin panel; versions below `9.3.11` or `10.0.8` in the 10.x line are affected\n- Confirm whether the instance is reachable from the internet on its API endpoints","needs_analyst":false,"not_affected_if":["patched-version","no-public-api"],"who_is_affected":"Any internet-reachable EspoCRM instance running a version before 9.3.11 or in the 10.x line before 10.0.8 is exposed, because the vulnerable API error path needs no login. Instances kept behind a VPN or an authenticating proxy with no public API route are at much lower risk. Teams on a patched version can skip it.","user_interaction":"no","needs_special_setup":"no","severity_if_unknown":"unknown"},"cost_usd":0.000615,"input_tokens":3352,"output_tokens":559,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-118686':13A,16A '-2026':12A,15A '10':72C '10.0.8':75C '9.3.11':70C 'api':32B,52B,92C,113C 'appli':90C 'attack':46B,104C 'bodi':40B,101C 'concurr':106C 'consum':95C 'contain':76C 'cpu':10A,37B,97C 'crm':64B 'cve':11A,14A 'denial':78C 'error':33B,93C 'espocrm':1A,17B,23B,68C,120C 'excess':36B,96C 'exhaust':9A,116C 'express':29B,89C 'handl':34B,94C 'host':22B 'larg':51B,112C 'legitim':125C 'let':6A 'long':42B,99C 'make':62B,119C 'number':110C 'packag':18B 'password':3A,26B,86C 'password-redact':2A,25B,85C 'php':19B 'redact':4A,27B,87C 'regex':5A 'regular':28B,88C 'remot':45B,103C 'request':8A,39B,53B,100C,114C 'run':30B 'self':21B 'self-host':20B 'send':48B,107C 'server':59B,117C 'servic':80C 'slow':65B,121C 'small':109C 'tie':57B 'unauthent':7A,44B,102C 'unavail':67B,123C 'use':35B 'user':126C 'vulner':81C 'worker':60B,118C 'x':73C","nicknames":[],"mitigations":[],"who_affected":"Any internet-reachable EspoCRM instance running a version before 9.3.11 or in the 10.x line before 10.0.8 is exposed, because the vulnerable API error path needs no login. Instances kept behind a VPN or an authenticating proxy with no public API route are at much lower risk. Teams on a patched version can skip it.","tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-28T19:17:35+00:00","kev":null,"cvss_vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/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-2026-118686","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-118686","severity":null,"published_at":"2026-10-28T19:17:35+00:00","modified_at":"2026-10-28T19:17:35+00:00","first_seen_at":"2026-10-28T19:34:55+00:00","fetched_at":"2026-10-28T19:34:55+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"}