{"id":"CVE-2026-87096","kind":"vulnerability","aliases":["CVE-2026-87096"],"related":[],"title":"Acronis Cyber Infrastructure: improper authorization exposes and alters sensitive data","description":"Sensitive information disclosure and manipulation due to improper authorization checks. The following products are affected: Acronis Cyber Infrastructure (ACI) before build 6.0.1-112, Acronis Cyber Infrastructure (ACI) before build 6.1.1-64, Acronis Cyber Infrastructure (ACI) before build 6.2.1-71.","summary":"Acronis Cyber Infrastructure builds before 6.0.1-112, 6.1.1-64 and 6.2.1-71 fail to check authorization properly on some operations. An attacker can read sensitive information and change data they should not reach.","severity":"low","cvss":3.3,"epss":0.00131,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["acronis","acronis-cyber-infrastructure","infrastructure","self-hosted","storage"],"not_affected_if":["unknown"],"how_to_check":"- Check the installed ACI build number against the fixed builds listed in the fix field\n- unknown for other checks, the sources do not say which component or interface is involved","fix":"- Upgrade Acronis Cyber Infrastructure to `6.0.1-112` or later on the 6.0 branch\n- Upgrade Acronis Cyber Infrastructure to `6.1.1-64` or later on the 6.1 branch\n- Upgrade Acronis Cyber Infrastructure to `6.2.1-71` or later on the 6.2 branch","status":"open","published_at":"2026-10-21T11:17:09+00:00","first_seen_at":"2026-10-23T21:57:28+00:00","triaged_at":"2026-10-25T04:45:55+00:00","updated_at":"2026-10-25T04:45:55+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-25T04:45:55Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Acronis Cyber Infrastructure to `6.0.1-112` or later on the 6.0 branch\n- Upgrade Acronis Cyber Infrastructure to `6.1.1-64` or later on the 6.1 branch\n- Upgrade Acronis Cyber Infrastructure to `6.2.1-71` or later on the 6.2 branch","reach":"unknown","title":"Acronis Cyber Infrastructure: improper authorization exposes and alters sensitive data","impact":"medium","summary":"Acronis Cyber Infrastructure builds before 6.0.1-112, 6.1.1-64 and 6.2.1-71 fail to check authorization properly on some operations. An attacker can read sensitive information and change data they should not reach.","category":"infrastructure","nicknames":[],"who_cares":["acronis","acronis-cyber-infrastructure","self-hosted","storage"],"confidence":0.5,"needs_auth":"unknown","worst_case":"Attacker reads sensitive information and modifies data without authorization","analyst_note":"Check the Acronis security advisory for affected components, required privileges and network reach; sources here give only the NVD description and EPSS 0.001.","how_to_check":"- Check the installed ACI build number against the fixed builds listed in the fix field\n- unknown for other checks, the sources do not say which component or interface is involved","needs_analyst":true,"not_affected_if":["unknown"],"who_is_affected":"Organizations running Acronis Cyber Infrastructure (ACI) builds older than the fixed versions for their branch. The sources do not say which interfaces or configurations are exposed, so whether a given deployment is reachable is unknown.","user_interaction":"unknown","needs_special_setup":"unknown","severity_if_unknown":"low"},"cost_usd":0.000649,"input_tokens":3365,"output_tokens":625,"severity_before":"low"},"analyst_status":null,"analyst_note":null,"search":"'-112':33B,82C '-2026':12A,15A '-64':35B,90C '-71':38B,98C '-87096':13A,16A '6.0.1':32B,81C '6.1.1':34B,89C '6.2.1':37B,97C 'aci':78C,86C,94C 'acroni':1A,17B,19B,27B,75C,83C,91C 'acronis-cyber-infrastructur':18B 'affect':74C 'alter':8A 'attack':48B 'author':5A,42B,68C 'build':30B,80C,88C,96C 'chang':54B 'check':41B,69C 'cve':11A,14A 'cyber':2A,20B,28B,76C,84C,92C 'data':10A,55B 'disclosur':62C 'due':65C 'expos':6A 'fail':39B 'follow':71C 'host':25B 'improp':4A,67C 'inform':52B,61C 'infrastructur':3A,21B,22B,29B,77C,85C,93C 'manipul':64C 'oper':46B 'product':72C 'proper':43B 'reach':59B 'read':50B 'self':24B 'self-host':23B 'sensit':9A,51B,60C 'storag':26B","nicknames":[],"mitigations":[],"who_affected":"Organizations running Acronis Cyber Infrastructure (ACI) builds older than the fixed versions for their branch. The sources do not say which interfaces or configurations are exposed, so whether a given deployment is reachable is unknown.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-21T11:17:09+00:00","kev":null,"cvss_vector":"CVSS:3.0/AV:N/AC:H/PR:H/UI:N/S:U/C:L/I:L/A:N","cvss_by":"security@acronis.com","poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-87096","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-87096","severity":null,"published_at":"2026-10-21T11:17:09+00:00","modified_at":"2026-10-22T17:21:57+00:00","first_seen_at":"2026-10-23T21:57:28+00:00","fetched_at":"2026-10-23T22:29:01+00:00","note":null},{"source":"epss","external_id":"CVE-2026-87096","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-87096","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-24T13:15:54+00:00","fetched_at":"2026-10-24T13:15:54+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"}