{"id":"CVE-2026-114442","kind":"vulnerability","aliases":["CVE-2026-114442"],"related":[],"title":"Apache HertzBeat: incomplete XPath validation lets authenticated users exhaust collector CPU","description":"Apache HertzBeat versions 1.7.1, 1.7.2, 1.7.3, 1.8.0, and 1.9.0 have incomplete XPath expression validation in the HTTP collector XML parsing path. An authenticated user with permission to create monitor templates can supply XPath expressions through metrics.aliasFields that are evaluated without the validation applied to parseScript. When processing a crafted XML response, repeated evaluation may consume excessive CPU resources and impair collector availability. This is a follow-up to the incomplete fix for CVE-2026-24343. The fix is included in Apache HertzBeat 1.9.1. Users should upgrade to 1.9.1 or a later version.","summary":"Apache HertzBeat's HTTP collector evaluates XPath expressions from monitor template alias fields without the validation applied to other script fields. A crafted XML response can make repeated evaluation consume excessive CPU and impair the collector.","severity":"medium","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apache-hertzbeat","http-collector","package","xml"],"not_affected_if":["auth-required","no-http-xml-collectors","version-1.9.1-or-later"],"how_to_check":"- Check the installed HertzBeat version against the affected list (`1.7.1`, `1.7.2`, `1.7.3`, `1.8.0`, `1.9.0`).\n- Review who holds permission to create monitor templates, since that account is needed to supply the expressions.","fix":"- Apache HertzBeat: upgrade to `1.9.1` or later.","status":"open","published_at":"2026-11-03T11:16:52+00:00","first_seen_at":"2026-11-03T11:20:21+00:00","triaged_at":"2026-11-03T11:20:49+00:00","updated_at":"2026-11-03T11:20:49+00:00","category":"package","confidence":0.6,"triage":{"at":"2026-11-03T11:20:49Z","model":"claude-haiku-5-5","output":{"fix":"- Apache HertzBeat: upgrade to `1.9.1` or later.","reach":"network","title":"Apache HertzBeat: incomplete XPath validation lets authenticated users exhaust collector CPU","impact":"low","summary":"Apache HertzBeat's HTTP collector evaluates XPath expressions from monitor template alias fields without the validation applied to other script fields. A crafted XML response can make repeated evaluation consume excessive CPU and impair the collector.","audience":"businesses","category":"package","nicknames":[],"who_cares":["apache-hertzbeat","http-collector","xml"],"confidence":0.6,"fix_status":"available","needs_auth":"yes","worst_case":"Collector CPU is exhausted, degrading monitoring availability.","analyst_note":"","how_to_check":"- Check the installed HertzBeat version against the affected list (`1.7.1`, `1.7.2`, `1.7.3`, `1.8.0`, `1.9.0`).\n- Review who holds permission to create monitor templates, since that account is needed to supply the expressions.","plain_action":"","needs_analyst":false,"not_affected_if":["version-1.9.1-or-later","no-http-xml-collectors","auth-required"],"who_is_affected":"Teams running Apache HertzBeat 1.7.1 through 1.9.0 with HTTP collectors that parse XML responses. Exposure requires an authenticated user who can create monitor templates; deployments where only trusted administrators hold that permission have lower risk. Instances on 1.9.1 or later are not affected.","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"medium"},"cost_usd":0.000719,"input_tokens":4274,"output_tokens":583,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-114442':14A,17A '-2026':13A,16A,136C '-24343':137C '1.7.1':65C '1.7.2':66C '1.7.3':67C '1.8.0':68C '1.9.0':70C '1.9.1':145C,150C 'alia':37B 'apach':1A,19B,26B,62C,143C 'apache-hertzbeat':18B 'appli':42B,104C 'authent':7A,84C 'avail':123C 'collector':10A,23B,30B,61B,79C,122C 'consum':55B,116C 'cpu':11A,57B,118C 'craft':48B,110C 'creat':89C 'cve':12A,15A,135C 'evalu':31B,54B,100C,114C 'excess':56B,117C 'exhaust':9A 'express':33B,74C,95C 'field':38B,46B 'fix':133C,139C 'follow':128C 'follow-up':127C 'hertzbeat':2A,20B,27B,63C,144C 'http':22B,29B,78C 'http-collector':21B 'impair':59B,121C 'includ':141C 'incomplet':3A,72C,132C 'later':153C 'let':6A 'make':52B 'may':115C 'metrics.aliasfields':97C 'monitor':35B,90C 'packag':24B 'pars':81C 'parsescript':106C 'path':82C 'permiss':87C 'process':108C 'repeat':53B,113C 'resourc':119C 'respons':50B,112C 'script':45B 'suppli':93C 'templat':36B,91C 'upgrad':148C 'user':8A,85C,146C 'valid':5A,41B,75C,103C 'version':64C,154C 'without':39B,101C 'xml':25B,49B,80C,111C 'xpath':4A,32B,73C,94C","nicknames":[],"mitigations":[],"who_affected":"Teams running Apache HertzBeat 1.7.1 through 1.9.0 with HTTP collectors that parse XML responses. Exposure requires an authenticated user who can create monitor templates; deployments where only trusted administrators hold that permission have lower risk. Instances on 1.9.1 or later are not affected.","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"available","audience":"businesses","plain_action":null,"pkeys":[],"ptokens":[],"labels":["apachehertzbeat","httpcollector","medium","package","xml"],"first_public_at":"2026-11-03T11:16:52+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-114442","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-114442","severity":null,"published_at":"2026-11-03T11:16:52+00:00","modified_at":"2026-11-03T11:16:52+00:00","first_seen_at":"2026-11-03T11:20:21+00:00","fetched_at":"2026-11-03T11:20:21+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"}