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HummerRisk CVE-2026-6220

| EUVDEUVD-2026-22120 LOW
Server-Side Request Forgery (SSRF) (CWE-918)
2026-04-13 VulDB GHSA-46m9-h86m-p3xh
2.0
CVSS 4.0 · NVD

Severity by source

NVD PRIMARY
2.0 LOW
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
vuln.today AI
4.7 MEDIUM

Network-reachable endpoint requires high-privilege admin authentication; SSRF yields only low confidentiality, integrity, and availability impact with no scope change.

3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N

Primary rating from NVD.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Attack Vector
Network
Attack Complexity
Low
Privileges Required
High
User Interaction
None
Scope
X

Lifecycle Timeline

7
Analysis Generated
Jul 24, 2026 - 07:57 vuln.today
Severity Changed
Apr 29, 2026 - 01:12 NVD
MEDIUM LOW
CVSS changed
Apr 29, 2026 - 01:12 NVD
5.1 (MEDIUM) 2.0 (LOW)
PoC Detected
Apr 29, 2026 - 01:00 vuln.today
Public exploit code
CVSS changed
Apr 13, 2026 - 22:52 NVD
4.7 (MEDIUM) 5.1 (MEDIUM)
EUVD ID Assigned
Apr 13, 2026 - 21:30 euvd
EUVD-2026-22120
CVE Published
Apr 13, 2026 - 21:00 nvd
LOW 2.0

DescriptionCVE.org

A vulnerability was identified in HummerRisk up to 1.5.0. This vulnerability affects the function ServerService.addServer of the file ServerService.java of the component Video File Download URL Handler. Such manipulation of the argument streamIp leads to server-side request forgery. It is possible to launch the attack remotely. The exploit is publicly available and might be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Server-Side Request Forgery in HummerRisk up to version 1.5.0 allows a high-privileged authenticated attacker to manipulate the streamIp argument within the ServerService.addServer function of the Video File Download URL Handler (ServerService.java), causing the server to issue arbitrary HTTP requests to internal or external destinations. All versions from 1.0 through 1.5.0 are confirmed affected, the vendor did not respond to responsible disclosure, and no patch is available. A public proof-of-concept exploit exists (referenced via GitHub), though EPSS at 0.03% and SSVC classification of non-automatable indicate limited broad-exploitation risk at this time.

Technical ContextAI

HummerRisk is a Java-based cloud-native security management platform. The vulnerable component is the Video File Download URL Handler within ServerService.java, specifically the addServer method (CWE-918: Server-Side Request Forgery). The root cause is insufficient validation of the streamIp input parameter before it is used to construct and issue outbound server-side HTTP requests. CWE-918 arises when user-supplied data controls the target of a server-initiated request, enabling attackers to pivot through the server to reach otherwise inaccessible internal network resources, cloud metadata endpoints (e.g., 169.254.169.254), or external destinations. The CPE string cpe:2.3:a:n/a:hummerrisk:*:*:*:*:*:*:*:* reflects that no authoritative CPE vendor identifier has been assigned, consistent with the vendor's non-responsiveness to disclosure.

RemediationAI

No vendor-released patch has been identified at time of analysis - the vendor was contacted prior to public disclosure and did not respond. Organizations running HummerRisk 1.0 through 1.5.0 should apply the following compensating controls. First, restrict access to the HummerRisk administrative interface to trusted internal IP ranges only using network-level ACLs or a WAF, reducing the attack surface even though PR:H is required. Second, deploy egress filtering on the HummerRisk host to block outbound requests to cloud metadata endpoints (e.g., 169.254.169.254/32) and RFC-1918 address ranges not required for legitimate operation - this directly limits the SSRF blast radius; note this may break integrations with internal services if not carefully scoped. Third, monitor outbound HTTP requests from the HummerRisk application server for anomalous destinations. The public POC is referenced at https://github.com/ccccccctiiiiiiii-lab/public_exp/issues/1 and VulDB entry https://vuldb.com/vuln/357141. Organizations should evaluate whether deployment of this product is justified until a vendor-issued fix is released.

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CVE-2026-6220 vulnerability details – vuln.today

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