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CVE-2026-5557

MEDIUM CVSS 4.0: 5.3 EPSS 0.06%
Updated Apr 07, 2026
Slack
Parameter Value
CVSS 5.3 (MEDIUM)
Type CWE-288 (Authentication Bypass Using Alternate Path), CWE-287 (Improper Authentication)
Vendor Slack
Public PoC No

A vulnerability was detected in badlogic pi-mono up to 0.58.4. This issue affects some unknown processing of the file packages/mom/src/slack.ts of the component pi-mom Slack Bot. The manipulation results in authentication bypass using alternate channel.

The attack can be executed remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

Attack Parameters

Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed

Impact Assessment

Confidentiality
Low
Partial data leak
Integrity
Low
Partial data modification
Availability
Low
Partial disruption

CVSS Vector v4.0