CVE-2026-56835 PraisonAI - Authorization Bypass

PraisonAI 3.11.0 to <4.6.59 contains an authorization bypass caused by inconsistent enforcement of allowed_users, allowed_channels, and unknown_user_policy in Slack app_mention event handler, letting Slack workspace users trigger agents without proper permissions, exploit requires ability to mention the bot in a channel.

CVSS base score 8.3 /10
High
CISA KEV
Not listed
Public exploit
None known
Authentication
Required
EPSS
0.37% chance of exploitation in 30 days
View the NVD record ↗

Details

Type
Authorization Bypass
Impact
Broken Access Control
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:L
Published
23 October 2026
Updated
25 October 2026
Weakness
CWE-862

Vendor fix

Upgrade to version 4.6.59 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

References

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