{"id":"CVE-2026-64945","kind":"vulnerability","aliases":["CVE-2026-64945"],"related":[],"title":"Apache Answer: unpin permission lets users hide questions without hide rights","description":"A vulnerability in Apache Answer.\n\n\n\nThis issue affects Apache Answer: through 2.0.2.\n\nThe question operation controller gates hide/show operations on the wrong permission check result (the unpin permission instead of the hide permission), so in custom role configurations that separate these permissions, a user granted only question.unpin can hide or restore questions without holding question.hide or question.show.\n\n\nUsers are recommended to upgrade to version 2.0.3, which fixes the issue.","summary":"Apache Answer's question controller checks the wrong permission for hide and show actions, so a user granted only the unpin permission can hide or restore questions. An attacker with that narrow custom role can change question visibility without holding the hide or show permissions.","severity":"low","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["apache-answer","package","self-hosted"],"not_affected_if":["default-config","upgraded-to-2.0.3"],"how_to_check":"- Check the installed Apache Answer version; releases through `2.0.2` are affected.\n- Review custom roles for any that grant `question.unpin` without `question.hide` or `question.show`.","fix":"- Upgrade Apache Answer to `2.0.3`.\n- Until upgraded, remove `question.unpin` from custom roles that do not also need hide or show rights.","status":"open","published_at":"2026-10-19T10:16:48+00:00","first_seen_at":"2026-10-23T21:57:17+00:00","triaged_at":"2026-10-25T05:12:33+00:00","updated_at":"2026-10-25T05:12:33+00:00","category":"package","confidence":0.8,"triage":{"at":"2026-10-25T05:12:33Z","model":"claude-haiku-5-5","output":{"fix":"- Upgrade Apache Answer to `2.0.3`.\n- Until upgraded, remove `question.unpin` from custom roles that do not also need hide or show rights.","reach":"internet","title":"Apache Answer: unpin permission lets users hide questions without hide rights","impact":"low","summary":"Apache Answer's question controller checks the wrong permission for hide and show actions, so a user granted only the unpin permission can hide or restore questions. An attacker with that narrow custom role can change question visibility without holding the hide or show permissions.","category":"package","nicknames":[],"who_cares":["apache-answer","self-hosted"],"confidence":0.8,"needs_auth":"yes","worst_case":"Authenticated low-privilege user alters question visibility without proper permission","analyst_note":"","how_to_check":"- Check the installed Apache Answer version; releases through `2.0.2` are affected.\n- Review custom roles for any that grant `question.unpin` without `question.hide` or `question.show`.","needs_analyst":false,"not_affected_if":["default-config","upgraded-to-2.0.3"],"who_is_affected":"Only deployments that use custom roles separating the unpin permission from the hide and show permissions are exposed, since the flaw only matters when a role holds question.unpin without question.hide or question.show. Installations using only default roles, or those not on the affected versions, can skip it.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"low"},"cost_usd":0.00059,"input_tokens":3335,"output_tokens":513,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-64945':14A,17A '2.0.2':81C '2.0.3':134C 'action':38B 'affect':77C 'answer':2A,20B,26B,74C,79C 'apach':1A,19B,25B,73C,78C 'apache-answ':18B 'attack':53B 'chang':60B 'check':30B,93C 'configur':107C 'control':29B,85C 'custom':57B,105C 'cve':12A,15A 'fix':136C 'gate':86C 'grant':42B,114C 'hide':7A,10A,35B,48B,66B,101C,118C 'hide/show':87C 'hold':64B,123C 'host':24B 'instead':98C 'issu':76C,138C 'let':5A 'narrow':56B 'oper':84C,88C 'packag':21B 'permiss':4A,33B,46B,69B,92C,97C,102C,111C 'question':8A,28B,51B,61B,83C,121C 'question.hide':124C 'question.show':126C 'question.unpin':116C 'recommend':129C 'restor':50B,120C 'result':94C 'right':11A 'role':58B,106C 'self':23B 'self-host':22B 'separ':109C 'show':37B,68B 'unpin':3A,45B,96C 'upgrad':131C 'user':6A,41B,113C,127C 'version':133C 'visibl':62B 'vulner':71C 'without':9A,63B,122C 'wrong':32B,91C","nicknames":[],"mitigations":[],"who_affected":"Only deployments that use custom roles separating the unpin permission from the hide and show permissions are exposed, since the flaw only matters when a role holds question.unpin without question.hide or question.show. Installations using only default roles, or those not on the affected versions, can skip it.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-19T10:16:48+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-64945","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-64945","severity":null,"published_at":"2026-10-19T10:16:48+00:00","modified_at":"2026-10-19T20:47:17+00:00","first_seen_at":"2026-10-23T21:57:17+00:00","fetched_at":"2026-10-23T22:28:56+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"}