What is CVE-2026-5557?

CVE-2026-5557 is a medium-severity vulnerability in Badlogic Pi-mono, classified under Improper Authentication. CVSS score: 6.3/10. Published 2026-04-05.

How severe is CVE-2026-5557?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Auth bypass in Badlogic Pi-mono

CVE-2026-5557

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 alte…

Vulnerability class: Broken Authentication

EPSS: 0.000 (8.8th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.

Affected products

Badlogic Pi-mono — versions 0.58.0, 0.58.1, 0.58.2

Weakness classification (CWE)

References

VDB-355327 | badlogic pi-mono pi-mom Slack Bot slack.ts authentication bypass (vdb-entry)
VDB-355327 | CTI Indicators (IOB, IOC, IOA) (signature, permissions-required)
Submit #782879 | badlogic pi-mono 0.58.4 Unauthenticated Remote Code Execution (third-party-advisory)
cna@vuldb.com (issue-tracking, exploit)

Frequently asked questions

What is CVE-2026-5557?: CVE-2026-5557 is a medium-severity vulnerability in Badlogic Pi-mono, classified under Improper Authentication. CVSS score: 6.3/10. Published 2026-04-05.
How severe is CVE-2026-5557?: Medium severity. CVSS v3 base score is 6.3 out of 10.