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sonic-agent CVE-2026-15496

| EUVDEUVD-2026-43218 LOW
OS Command Injection (CWE-78)
2026-07-12 VulDB GHSA-4896-cr5v-422q
Command Injection Java Sonic Agent
2.1
CVSS 4.0 · Vendor: VulDB

Severity by source

Vendor (VulDB) PRIMARY
2.1 MEDIUM
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
9.9 CRITICAL

PR:L per CVSS 4.0 data; S:C and C/I/A:H reflect unsandboxed Groovy RCE enabling full host OS command execution beyond the application scope.

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

Primary rating from Vendor (VulDB).

CVSS VectorVendor: VulDB

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/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
Low
User Interaction
None
Scope
X

Lifecycle Timeline

3
Analysis Generated
Jul 12, 2026 - 11:33 vuln.today
Severity Changed
Jul 12, 2026 - 11:22 NVD
MEDIUM LOW
CVSS changed
Jul 12, 2026 - 11:22 NVD
5.3 (MEDIUM) 2.1 (LOW)

DescriptionCVE.org

A vulnerability was found in SonicCloudOrg sonic-agent up to 2.7.2. The impacted element is the function evalIsFailed of the file sonic-agent/src/main/java/org/cloud/sonic/agent/tests/script/GroovyScriptImpl.java of the component Groovy Script Handler. The manipulation results in os command injection. The attack can be launched 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. This vulnerability only affects products that are no longer supported by the maintainer.

AnalysisAI

OS command injection in SonicCloudOrg sonic-agent up to version 2.7.2 allows remote low-privileged attackers to execute arbitrary system commands via the evalIsFailed function in the Groovy Script Handler component. The public proof-of-concept - titled 'Unsandboxed_RCE' - confirms that Groovy scripts are executed without a security sandbox, enabling full host-level command execution. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
Obtain low-privilege sonic-agent credentials
Delivery
Submit crafted Groovy script to evalIsFailed endpoint
Exploit
Unsandboxed Groovy runtime evaluates OS command payload
Execution
Arbitrary commands execute under sonic-agent process context
Impact
Host system compromised
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Vulnerability AssessmentAI

Exploitation Exploitation requires a valid low-privilege account on the sonic-agent instance - unauthenticated exploitation is not confirmed by the CVSS PR:L metric. … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment CRITICAL DISCREPANCY: The reported CVSS 4.0 score of 2.1 with impact metrics VC:L/VI:L/VA:L is almost certainly a significant understatement for this class of vulnerability. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario An attacker with a low-privilege account on the sonic-agent platform submits a crafted test script payload targeting the evalIsFailed evaluation path, embedding OS commands (e.g., reverse shell invocations or data exfiltration commands) within the Groovy script body. Because the Groovy runtime operates without a sandbox, the injected commands execute directly on the host OS under the sonic-agent process identity. …
Remediation No vendor-released patch is available and none is expected, as the vendor did not respond to disclosure and the product is end-of-life. … Detailed patch versions, workarounds, and compensating controls in full report.
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CVE-2026-15496 vulnerability details – vuln.today
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