EUVD-2026-80073
GHSA-c3w9-49h5-9jjq
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
Remote unauthenticated SSRF via attacker-controlled file URL (AV:N/AC:L/PR:N/UI:N); low confidentiality/integrity from server-side requests to internal targets, no direct availability impact.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
2DescriptionCVE.org
A vulnerability has been found in a2ui-project a2ui up to 0.10.7. Affected by this vulnerability is the function httpx.get of the file agent_sdks/python/a2ui_agent/src/a2ui/extensions/file_resolve/file_resolver.py of the component FileResolver. The manipulation leads to server-side request forgery. It is possible to initiate the attack remotely. The identifier of the patch is 2bb8423060308bbdea8ba468dabed4fc256d18ea. To fix this issue, it is recommended to deploy a patch.
AnalysisAI
Server-side request forgery in the a2ui agent SDK's FileResolver (a2ui 0.10.0 through 0.10.7) allows a remote, unauthenticated attacker to make the agent process issue attacker-influenced outbound HTTP requests via the httpx.get call in file_resolver.py, enabling access to internal services, cloud metadata endpoints, and other resources reachable from the agent host. Exploitation requires that the deployment actually uses the FileResolver extension's HTTP path and that an attacker can supply or influence the file reference (file_id/URL) the agent resolves; the impact is bounded to server-initiated requests rather than code execution, and the affected product's deployment footprint is very small. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Exploitable when an a2ui deployment uses the FileResolver extension's HTTP file-resolution path (agent_sdks/python/a2ui_agent .../file_resolver.py) and allows attacker-influenced file references (file_id/URLs) to reach the httpx.get call. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a server-side request forgery flaw (CWE-918) in the a2ui agent SDK's FileResolver, which uses httpx.get to fetch file references without validating the target host or resolved IP. … 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 the upstream fix: the vendor-released patch is the upstream commit 2bb8423060308bbdea8ba468dabed4fc256d18ea (pull request https://github.com/a2ui-project/a2ui/pull/2390), which adds host allow-listing, private/loopback/link-local IP rejection, IP-pinned requests with explicit Host/SNI handling, and bounded manual redirect following; because the fix is delivered as a PR/commit rather than a confirmed tagged release, upstream fix available (PR/commit); released patched version not independently confirmed - track the repository at https://github.com/a2ui-project/a2ui/ and upgrade to the first release published after 0.10.7 that contains commit 2bb8423060308bbdea8ba468dabed4fc256d18ea, verifying the file_resolver.py contents before deployment. … 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
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