RCE in Bastillion-Io Bastillion
CVE-2026-1064
A vulnerability was found in bastillion-io Bastillion up to 4.0.1. This issue affects some unknown processing of the file src/main/java/io/bastillion/manage/control/SystemKtrl.java of the component System Management Module. Performing a manipulation results in command injection. The attack can be initiated remotely. The exploit has been made public and could 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 4.7 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.046 (91.3th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.042 · newest: 0.046 · change: +0.003
Affected products
- Bastillion-Io Bastillion — versions 4.0.0, 4.0.1
Weakness classification (CWE)
References
- vuldb.com/ (technical-description, vdb-entry)
- vuldb.com/ (signature, permissions-required)
- vuldb.com/ (third-party-advisory)
- github.com/AnalogyC0de/public_exp/blob/main/archives/Bastillion/report2.md (exploit)
Frequently asked questions
- What is CVE-2026-1064?
- CVE-2026-1064 is a medium-severity vulnerability in Bastillion-Io Bastillion, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 4.7/10. Published 2026-01-17.
- How severe is CVE-2026-1064?
- Medium severity. CVSS v3 base score is 4.7 out of 10.