RCE in Badlogic Pi-Mono
CVE-2026-5556
A security vulnerability has been detected in badlogic pi-mono up to 0.58.4. This vulnerability affects the function discoverAndLoadExtensions of the file packages/coding-agent/src/core/extensions/loader.ts. The manipulation leads to code injection. Remote exploitation of the attack is possible. The exploit has been disclosed publicly and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Published · last modified .
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.
EPSS exploit prediction
EPSS: 0.004 (31.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 31st percentile — 31.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Badlogic Pi-Mono — versions 0.58.0, 0.58.1, 0.58.2
Weakness classification (CWE)
Public proof-of-concept exploits
References
- vuldb.com/vuln/355326 (technical-description, vdb-entry)
- vuldb.com/vuln/355326/cti (signature, permissions-required)
- vuldb.com/submit/782876 (third-party-advisory)
- github.com/August829/CVEP/issues/27 (issue-tracking, exploit)
Frequently asked questions
- What is CVE-2026-5556?
- CVE-2026-5556 is a medium-severity vulnerability in Badlogic Pi-Mono, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 6.3/10. Published 2026-04-05.
- How severe is CVE-2026-5556?
- Medium severity. CVSS v3 base score is 6.3 out of 10.
- Is CVE-2026-5556 known to be exploited?
- 1 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.