{"id":"CVE-2026-32944","kind":"vulnerability","aliases":["CVE-2026-32944","GHSA-9xp9-j92r-p88v"],"related":[],"title":"Parse Server crash via deeply nested query condition operators","description":"Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 9.6.0-alpha.21 and 8.6.45, an unauthenticated attacker can crash the Parse Server process by sending a single request with deeply nested query condition operators. This terminates the server and denies service to all connected clients. Starting in version 9.6.0-alpha.21 and 8.6.45, a depth limit for query condition operator nesting has been added via the `requestComplexity.queryDepth` server option. The option is disabled by default to avoid a breaking change. To mitigate, upgrade and set the option to a value appropriate for your app. No known workarounds are available.","summary":"A single request with deeply nested query condition operators makes the Parse Server process crash. Any unauthenticated client can take the server and every connected client offline.","severity":"high","cvss":8.7,"epss":0.00513,"exploited":false,"exploited_at":null,"products":[{"name":"parse-server","fixed":["9.6.0-alpha.21"],"affected":">= 9.0.0, < 9.6.0-alpha.21","ecosystem":"npm"},{"name":"parse-server","fixed":["8.6.45"],"affected":"< 8.6.45","ecosystem":"npm"},{"name":"parseplatform parse-server","fixed":["8.6.45"],"affected":"< 8.6.45","ecosystem":"vendor"},{"name":"parseplatform parse-server","fixed":["9.6.0"],"affected":">= 9.0.0, < 9.6.0","ecosystem":"vendor"},{"name":"parseplatform parse-server","fixed":[],"affected":"= 9.6.0","ecosystem":"vendor"}],"ecosystems":["npm","vendor"],"tags":["cwe-674","node","package","parse-server","self-hosted"],"not_affected_if":["auth-required","managed-hosting"],"how_to_check":"- Check the installed version with `npm ls parse-server`\n- Check whether `requestComplexity.queryDepth` is set in your server configuration; it is disabled by default","fix":"- parse-server `9.6.0-alpha.21` for the 9.x line\n- parse-server `8.6.45` for the 8.x line\n- Set `requestComplexity.queryDepth` to a value suitable for your app; the option is disabled by default","status":"open","published_at":"2026-03-17T17:35:52+00:00","first_seen_at":"2026-11-09T01:44:56+00:00","triaged_at":"2026-11-09T01:46:35+00:00","updated_at":"2026-11-09T01:54:15+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-11-09T01:46:35Z","model":"claude-haiku-5-5","output":{"fix":"- parse-server `9.6.0-alpha.21` for the 9.x line\n- parse-server `8.6.45` for the 8.x line\n- Set `requestComplexity.queryDepth` to a value suitable for your app; the option is disabled by default","reach":"internet","title":"Parse Server: deeply nested query operators crash the server process","impact":"medium","summary":"A single request with deeply nested query condition operators makes the Parse Server process crash. Any unauthenticated client can take the server and every connected client offline.","audience":"developers","category":"package","nicknames":[],"who_cares":["parse-server","node","self-hosted"],"confidence":0.8,"fix_status":"available","needs_auth":"no","worst_case":"Server process crashes, denying service to all connected clients.","analyst_note":"","how_to_check":"- Check the installed version with `npm ls parse-server`\n- Check whether `requestComplexity.queryDepth` is set in your server configuration; it is disabled by default","plain_action":"","product_name":"","needs_analyst":false,"not_affected_if":["auth-required","managed-hosting"],"who_is_affected":"Any Parse Server deployment reachable from the internet is exposed to a single unauthenticated request that crashes the process. The advisory's mitigation is the queryDepth option, which is off by default, so a default configuration stays exposed until it is enabled. Applications using a managed Parse host should check with the host.","user_interaction":"no","product_ecosystem":"","needs_special_setup":"yes","severity_if_unknown":"high"},"cost_usd":0.000743,"input_tokens":4747,"output_tokens":537,"severity_before":"high"},"analyst_status":null,"analyst_note":null,"search":"'-2026':11A,19A '-32944':12A,20A '-674':40B '8.6.45':99C,137C '9.6.0':96C,134C '9xp9':15A 'add':148C 'alpha.21':97C,135C 'app':178C 'appropri':175C 'attack':102C 'avail':183C 'avoid':161C 'backend':82C 'break':163C 'chang':164C 'client':66B,74B,130C 'condit':8A,56B,118C,143C 'connect':73B,129C 'crash':3A,63B,104C 'cve':10A,18A 'cwe':39B 'deepli':5A,53B,115C 'default':159C 'deni':125C 'deploy':86C 'depth':139C 'disabl':157C 'everi':72B 'ghsa':14A 'ghsa-9xp9-j92r-p88v':13A 'host':48B 'infrastructur':89C 'j92r':16A 'known':180C 'limit':140C 'make':58B 'mitig':166C 'nest':6A,54B,116C,145C 'node':41B 'node.js':93C 'offlin':75B 'open':80C 'oper':9A,57B,119C,144C 'option':153C,155C,171C 'p88v':17A 'packag':42B 'pars':1A,44B,60B,76C,106C 'parse':22A,25A,29A,33A,37A 'parse-serv':43B 'parse-server':21A,24A,28A,32A,36A 'parseplatform':27A,31A,35A 'prior':94C 'process':62B,108C 'queri':7A,55B,117C,142C 'request':51B,113C 'requestcomplexity.querydepth':151C 'run':92C 'self':47B 'self-host':46B 'send':110C 'server':2A,23A,26A,30A,34A,38A,45B,61B,70B,77C,107C,123C,152C 'servic':126C 'set':169C 'singl':50B,112C 'sourc':81C 'start':131C 'take':68B 'termin':121C 'unauthent':65B,101C 'upgrad':167C 'valu':174C 'version':133C 'via':4A,149C 'workaround':181C","nicknames":[],"mitigations":[],"who_affected":"Any Parse Server deployment reachable from the internet is exposed to a single unauthenticated request that crashes the process. The advisory's mitigation is the queryDepth option, which is off by default, so a default configuration stays exposed until it is enabled. Applications using a managed Parse host should check with the host.","tier":"B","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"developers","plain_action":null,"pkeys":["parseplatformparseserver","parseserver"],"ptokens":["parse","parseplatform","server"],"labels":["cwe674","high","node","npm","package","parseserver","selfhosted","vendor"],"campaign_type":null,"search_a":"'-2026':11A,19A '-32944':12A,20A '9xp9':15A 'condit':8A 'crash':3A 'cve':10A,18A 'deepli':5A 'ghsa':14A 'ghsa-9xp9-j92r-p88v':13A 'j92r':16A 'nest':6A 'oper':9A 'p88v':17A 'pars':1A 'parse':22A,25A,29A,33A,37A 'parse-server':21A,24A,28A,32A,36A 'parseplatform':27A,31A,35A 'queri':7A 'server':2A,23A,26A,30A,34A,38A 'via':4A","search_b":"'-674':40B 'client':66B,74B 'condit':56B 'connect':73B 'crash':63B 'cwe':39B 'deepli':53B 'everi':72B 'host':48B 'make':58B 'nest':54B 'node':41B 'offlin':75B 'oper':57B 'packag':42B 'pars':44B,60B 'parse-serv':43B 'process':62B 'queri':55B 'request':51B 'self':47B 'self-host':46B 'server':45B,61B,70B 'singl':50B 'take':68B 'unauthent':65B","search_c":"'8.6.45':99C,137C '9.6.0':96C,134C 'add':148C 'alpha.21':97C,135C 'app':178C 'appropri':175C 'attack':102C 'avail':183C 'avoid':161C 'backend':82C 'break':163C 'chang':164C 'client':130C 'condit':118C,143C 'connect':129C 'crash':104C 'deepli':115C 'default':159C 'deni':125C 'deploy':86C 'depth':139C 'disabl':157C 'infrastructur':89C 'known':180C 'limit':140C 'mitig':166C 'nest':116C,145C 'node.js':93C 'open':80C 'oper':119C,144C 'option':153C,155C,171C 'pars':76C,106C 'prior':94C 'process':108C 'queri':117C,142C 'request':113C 'requestcomplexity.querydepth':151C 'run':92C 'send':110C 'server':77C,107C,123C,152C 'servic':126C 'set':169C 'singl':112C 'sourc':81C 'start':131C 'termin':121C 'unauthent':101C 'upgrad':167C 'valu':174C 'version':133C 'via':149C 'workaround':181C","cause_entry":null,"cause_path":null,"disclosures_checked_at":null,"first_public_at":"2026-03-16T03:11:47+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":"security-advisories@github.com","poc_count":0,"sources":[{"source":"ghsa","external_id":"GHSA-9xp9-j92r-p88v","url":"https://github.com/advisories/GHSA-9xp9-j92r-p88v","severity":"high","published_at":"2026-03-17T17:35:52+00:00","modified_at":"2026-11-09T01:43:35+00:00","first_seen_at":"2026-11-09T01:44:56+00:00","fetched_at":"2026-11-09T01:47:43+00:00","note":null},{"source":"nvd","external_id":"CVE-2026-32944","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-32944","severity":null,"published_at":"2026-03-18T22:16:25+00:00","modified_at":"2026-06-17T10:36:36+00:00","first_seen_at":"2026-11-09T01:54:15+00:00","fetched_at":"2026-11-09T01:54:15+00:00","note":null}],"documents":[{"id":105066,"url":"https://api.github.com/repos/parse-community/parse-server/security-advisories/GHSA-9xp9-j92r-p88v","title":"Maintainer's advisory: api.github.com","kind":"vendor","source":"ghsa","publisher":"vendor","text":null,"published_at":null,"relation":"advisory","confidence":null,"note":"Maintainer's advisory: api.github.com"},{"id":105067,"url":"https://github.com/parse-community/parse-server/security/advisories/GHSA-9xp9-j92r-p88v","title":"Maintainer's advisory: github.com","kind":"vendor","source":"ghsa","publisher":"vendor","text":null,"published_at":"2026-03-16T03:11:47+00:00","relation":"advisory","confidence":null,"note":"Maintainer's advisory: github.com"},{"id":105068,"url":"https://github.com/parse-community/parse-server/pull/10202","title":"Patch: github.com","kind":"other","source":"ghsa","publisher":"vendor","text":null,"published_at":null,"relation":"fix","confidence":null,"note":"Patch: github.com"},{"id":105069,"url":"https://github.com/parse-community/parse-server/pull/10203","title":"Patch: github.com","kind":"other","source":"ghsa","publisher":"vendor","text":null,"published_at":null,"relation":"fix","confidence":null,"note":"Patch: github.com"}],"disclosures":[],"exploit_sources":[{"type":"epss","score":0.00513,"url":"https://api.first.org/data/v1/epss?cve=CVE-2026-32944"}],"notice":"Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai"}