{"id":"CVE-2026-56835","revision":null,"records":[{"revision":"4b005383b794448abdc8e052a131bdfb","observedAt":"2026-10-23T16:01:20.601+00:00","statement":{"source":"cve-program","id":"CVE-2026-56835","aliases":[],"title":"PraisonAI Slack app_mention bypasses configured user/channel authorization","description":"PraisonAI is a multi-agent teams system. From version 3.11.0 to before version 4.6.59, PraisonAI's Slack bot applies its configured allowed_users, allowed_channels, and unknown-user pairing policy in the normal Slack message event handler, but not in the adjacent Slack app_mention event handler. A Slack workspace user who can mention the bot in a channel where the Slack app is present can trigger the configured PraisonAI agent even when: the sender is not in BotConfig.allowed_users; the channel is not in BotConfig.allowed_channels; unknown_user_policy=\"deny\" is configured; and the same event content is correctly dropped by the normal message handler. This issue has been patched in version 4.6.59.","state":0,"publishedAt":"2026-10-23T11:57:11.852+00:00","modifiedAt":"2026-10-23T11:57:11.852+00:00","affected":[{"ecosystem":"Vendor product","name":"PraisonAI","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"MervinPraison\",\n                    \"product\": \"PraisonAI\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 3.11.0, < 4.6.59\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L","score":8.3,"severity":"HIGH"}],"references":["https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qvpf-j64c-jmhr"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-56835","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-56835","identifiers":["CVE-2026-56835"]},"retained":false,"historicalAffected":[]}],"coverage":[{"source":"cisa-kev:global","scope":"Complete CISA KEV catalog; all vendors. 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