CVE-2026-3066
Published: 24 February 2026
Summary
CVE-2026-3066 is a medium-severity Injection (CWE-74) vulnerability in Hummerrisk Hummerrisk. Its CVSS base score is 5.3 (Medium).
Operationally, exploitation aligns with the MITRE ATT&CK technique Exploit Public-Facing Application (T1190); ranked in the top 5.3% of CVEs by exploit likelihood; it is not currently listed in the CISA KEV catalog; a public proof-of-concept is referenced.
The strongest mitigations our analysis identified are NIST 800-53 RA-5 (Vulnerability Monitoring and Scanning) and SI-10 (Information Input Validation).
Deeper analysis
CVE-2026-3066 is a command injection vulnerability affecting HummerRisk versions up to 1.5.0. The flaw resides in the fixedCommand function within the file hummer-common/hummer-common-core/src/main/java/com/hummer/common/core/utils/PlatformUtils.java, part of the Cloud Compliance Scanning component. It enables manipulation that leads to arbitrary command execution and is remotely exploitable.
Attackers with low privileges can exploit this vulnerability over the network with low complexity and no user interaction required. Successful exploitation grants limited impacts on confidentiality, integrity, and availability, as reflected in its CVSS v3.1 base score of 6.3 (AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L). The issue maps to CWE-74 and CWE-77.
Advisories from VulDB and a GitHub issue in the AnalogyC0de/public_exp repository detail the vulnerability, including a publicly available exploit. The vendor was contacted early for disclosure but provided no response, and no patches or official mitigations have been issued.
Notable context includes the published exploit, which may already be in use, heightening risks for exposed HummerRisk deployments. The vulnerability was published on 2026-02-24.
OWASP Top 10 for Web (2025)
EU & UK References
- 🇪🇺 ENISA EUVD: EUVD-2026-7397
Vulnerability details
A flaw has been found in HummerRisk up to 1.5.0. This vulnerability affects the function fixedCommand of the file hummer-common/hummer-common-core/src/main/java/com/hummer/common/core/utils/PlatformUtils.java of the component Cloud Compliance Scanning. Executing a manipulation can lead to command injection. The attack can be executed remotely.…
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The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
- CWE(s)
Related Threats
MITRE ATT&CK Enterprise TechniquesAI
Why these techniques?
Command injection vulnerability in a remotely exploitable cloud compliance scanning component enables exploitation of public-facing applications (T1190) and facilitates arbitrary command execution (T1059).
CVEs Like This One
Affected Assets
Mitigating Controls
Mitigating Controls (NIST 800-53 r5) AI
Directly prevents command injection by requiring validation of inputs to the vulnerable fixedCommand function in PlatformUtils.java.
Mandates timely remediation of the identified command injection flaw in HummerRisk, preventing exploitation through patching or workarounds.
Facilitates detection of CVE-2026-3066 via vulnerability scanning of HummerRisk deployments up to version 1.5.0.