EUVD-2026-42788
GHSA-2xj7-6vvg-p9hp
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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
Network-accessible SSRF with no authentication or interaction; low C/I from internal request proxying; no direct availability impact attributable to SSRF itself.
Primary rating from Vendor (vuldb).
CVSS VectorVendor: vuldb
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/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
Lifecycle Timeline
1DescriptionCVE.org
A vulnerability was determined in zhayujie CowAgent up to 2.1.1. Impacted is the function _build_image_content/_download_to_data_url of the file agent/tools/vision/vision.py of the component Vision Tool. Executing a manipulation of the argument image can lead to server-side request forgery. The attack can be launched remotely. The exploit has been publicly disclosed and may be utilized. Upgrading to version 2.1.2 is recommended to address this issue. This patch is called e85290cddcbb5ffc9c235927f4c92e5b4c3ec264. Upgrading the affected component is advised.
AnalysisAI
Server-side request forgery in zhayujie CowAgent versions up to 2.1.1 allows remote unauthenticated attackers to manipulate the image argument passed to _build_image_content or _download_to_data_url within the Vision Tool component, forcing the server to issue arbitrary outbound HTTP requests to attacker-specified destinations. The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) confirms exploitation requires no authentication and no special conditions, making this trivially accessible over the network. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | The Vision Tool feature must be enabled and its endpoint must be network-accessible to the attacker - both expected conditions in a default CowAgent deployment offering multimodal capabilities. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 5.5 (Medium) with all three impact dimensions at Low (VC:L/VI:L/VA:L) is consistent with SSRF's typical profile: partial information disclosure and potential lateral access rather than direct code execution. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | A remote unauthenticated attacker sends an HTTP request to the CowAgent Vision Tool endpoint with the `image` argument set to an internal URL such as http://169.254.169.254/latest/meta-data/iam/security-credentials/. The server fetches the URL and processes or returns the response, exposing AWS IAM temporary credentials to the attacker. … |
| Remediation | Upgrade to CowAgent version 2.1.2, which resolves this issue via commit e85290cddcbb5ffc9c235927f4c92e5b4c3ec264 (https://github.com/zhayujie/CowAgent/commit/e85290cddcbb5ffc9c235927f4c92e5b4c3ec264); the release is available at https://github.com/zhayujie/CowAgent/releases/tag/2.1.2. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-918 – Server-Side Request Forgery (SSRF)
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External POC / Exploit Code
Leaving vuln.today