EUVD-2026-77138
GHSA-xxxm-jwv4-xmv7
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:X/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
No authentication required (PR:N confirmed by patch), network-accessible endpoint; limited C/I/A reflecting S3 write abuse and stored XSS potential without full system compromise.
Primary rating from Vendor (vuldb).
CVSS VectorVendor: vuldb
Lifecycle Timeline
2DescriptionCVE.org
A vulnerability was identified in Anil-matcha Open-Generative-AI up to 1.0.11/2.0.0. Affected by this issue is some unknown functionality of the file /api/upload-binary of the component S3 Upload. Such manipulation of the argument x-proxy-target-url leads to unrestricted upload. The attack may be launched remotely. The name of the patch is f013270957f75e439eaf97eb2a93decb32a4543e. Applying a patch is advised to resolve this issue.
AnalysisAI
Unauthenticated file upload in Anil-matcha Open-Generative-AI (versions up to 1.0.11/2.0.0) allows any remote attacker to upload arbitrary files - including HTML, SVG, and executable types - to the application's S3 backend via the /api/upload-binary proxy endpoint. The endpoint accepted requests without any API key check and imposed no restrictions on file type or content, as confirmed by the patch commit f013270957f. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitation requires the application to be reachable over the network and running an unpatched version (up to 1.0.11 or 2.0.0). … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 vector (AV:N/AC:L/AT:N/PR:N/UI:N) scores 6.9, which accurately reflects the ease of exploitation - the endpoint requires no credentials and no special preconditions. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Apply commit f013270957f75e439eaf97eb2a93decb32a4543e from the upstream repository at https://github.com/Anil-matcha/Open-Generative-AI/commit/f013270957f75e439eaf97eb2a93decb32a4543e. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-284 – Improper Access Control
View allSame technique Authentication Bypass
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External POC / Exploit Code
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