CVE-2026-5557 Details
Description
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.
A critical unauthenticated remote code execution vulnerability exists in the Badlogic Pi-Mono application, specifically in versions through 0.58.4, within the Pi-Mom Slack bot component. The vulnerability arises from an authentication bypass that allows any member of a Slack workspace to send messages to the bot. These messages are processed without any application-level authentication, enabling the execution of arbitrary shell commands on the host system via a direct message or @mention. The exploitation can be carried out remotely, and the vulnerability is currently public.
Users are advised to update to a version of Badlogic Pi-Mono that addresses this vulnerability. If no update is available, consider removing the Pi-Mom Slack bot from the workspace to prevent exploitation.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Apr 5, 2026CISA-ADP
Assessed Apr 6, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/August829/CVEP/issues/28 | [email protected] | ExploitIssue TrackingTechnical Analysis |
| https://vuldb.com/submit/782879 | [email protected] | ExploitTechnical Description |
| https://vuldb.com/vuln/355327 | [email protected] | AdvisoryExploitPartial Content |
| https://vuldb.com/vuln/355327/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-287 | Improper Authentication | [email protected] |
| CWE-288 | Authentication Bypass Using an Alternate Path or Channel | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| badlogic pi-mono | All versions |
CPE
Remediation
| |
Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jul 24, 2026 | CVE Translated | [email protected] |
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| Apr 29, 2026 | Data Remediation | [email protected] |
| Apr 5, 2026 | New CVE Received | [email protected] |