CVE-2026-90790
Medium
Description
A security vulnerability has been detected in a2aproject a2a-python up to 1.1.3. This affects the function _dispatch_notification of the file src/a2a/server/tasks/base_push_notification_sender.py of the component Push Notification Sender. The manipulation of the argument push_info.url leads to server-side request forgery. Remote exploitation of the attack is possible. Upgrading to version 1.1.4 is able to mitigate this issue. It is suggested to upgrade the affected component.
SeverityMedium
CVSS6.3
Exploit probability—
ProductA2aproject A2a-python
PublishedSep 14, 2026
First seenSep 14, 2026
Weakness typeCWE-918Server-side request forgery (SSRF)
How to fix
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| a2aproject a2a-python | 1.1.0, 1.1.1, 1.1.2, 1.1.3 | — |
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