{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-56835", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-06-23T14:55:09.117Z", "datePublished": "2026-10-23T11:57:11.852Z", "dateUpdated": "2026-10-29T02:50:43.187Z" }, "containers": { "cna": { "title": "PraisonAI Slack app_mention bypasses configured user/channel authorization", "problemTypes": [ { "descriptions": [ { "cweId": "CWE-862", "lang": "en", "description": "CWE-862: Missing Authorization", "type": "CWE" } ] }, { "descriptions": [ { "cweId": "CWE-863", "lang": "en", "description": "CWE-863: Incorrect Authorization", "type": "CWE" } ] } ], "metrics": [ { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "LOW", "baseScore": 8.3, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L", "version": "3.1" } } ], "references": [ { "name": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qvpf-j64c-jmhr", "tags": [ "x_refsource_CONFIRM" ], "url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qvpf-j64c-jmhr" } ], "affected": [ { "vendor": "MervinPraison", "product": "PraisonAI", "versions": [ { "version": ">= 3.11.0, < 4.6.59", "status": "affected" } ] } ], "providerMetadata": { "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-10-23T11:57:11.852Z" }, "descriptions": [ { "lang": "en", "value": "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." } ], "source": { "advisory": "GHSA-qvpf-j64c-jmhr", "discovery": "UNKNOWN" } }, "adp": [ { "references": [ { "url": "https://github.com/MervinPraison/PraisonAI/security/advisories/GHSA-qvpf-j64c-jmhr", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-10-29T02:50:19.140712Z", "id": "CVE-2026-56835", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-29T02:50:43.187Z" } } ] } }