CVE-2026-90790
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.
Scoring
- Severity
- MEDIUM
- CVSS base score
- 6.5
- CVSS vector
- 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:X
- EPSS probability
- 0.21%
- CWE
- CWE-918
- Published
- 2026-09-14
- Last modified
- 2026-09-15
Affected products
- a2aproject a2a-python
- a2aproject a2a-python
- a2aproject a2a-python
- a2aproject a2a-python
- a2aproject a2a-python
Weakness type
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