HummerRisk thru v1.5.0 is using a vulnerable Snakeyaml component, allowing attackers with…
Priority HIGH 82CWE-502Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Code execution
- Confidentiality · integrity · availability
- High · High · High
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-502.
Summary
HummerRisk thru v1.5.0 is using a vulnerable Snakeyaml component, allowing attackers with normal user privileges to hit the /rule/add API and thereby achieve RCE and take over the server.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00492 42nd percentileScored 2026-11-07
Public exploit Yes 2 exploit referencesTagged by NVD
Fix No fix listed No fixed version in the sources yet
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
CPE configurations NVD · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:hummerrisk:hummerrisk:*:*:*:*:*:*:*:* | up to 1.5.0 | Vulnerable | Hummerrisk |
- cpe:2.3:a:hummerrisk:hummerrisk:*:*:*:*:*:*:*:* Versions up to 1.5.0 Vulnerable ·Hummerrisk
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2025-63721
- 2026-10-03 Alias added: GHSA-9hqp-6jv3-9h7w
References
More Hummerrisk vulnerabilities
- TI-2023-23227 An issue in HummerRisk HummerRisk v.1.10 thru 1.4.1 allows an authenticated attacker to… CVSS 3.1HIGH 8.8
- TI-2026-02651 HummerRisk Archive Extraction CommandUtils.java extractZip path traversal CVSS 4.0MEDIUM 5.3
- TI-2026-02650 HummerRisk Cloud Compliance Scanning PlatformUtils.java fixedCommand command injection CVSS 4.0MEDIUM 5.3
- TI-2026-02649 HummerRisk Cloud Task Dry-run CloudTaskService.java CommandUtils.commonExecCmdWithResult command injection CVSS 4.0MEDIUM 5.3
- TI-2026-02648 HummerRisk Cloud Task Scheduler ResourceCreateService.java command injection CVSS 4.0MEDIUM 5.3
Sources
- CVE-2025-63721 · CVE Program
- CVE-2025-63721 · NVD
- FIRST EPSS
- GHSA-9hqp-6jv3-9h7w · GitHub Advisory Database · CC BY 4.0
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