CVE-2026-90790CWE-918ssrf

CVE-2026-90790

Medium · published September 14, 2026

CVSS v3.1
6.3
EPSS
0%
Percentile
30.2
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS v4.0
5.3 · 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
0.00374 · 30.2th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-09-14T19:17Z
References (8)
https://github.com/a2aproject/a2a-python/ · [email protected]https://github.com/a2aproject/a2a-python/pull/1164 · [email protected]https://github.com/a2aproject/a2a-python/pull/1169 · [email protected]https://github.com/a2aproject/a2a-python/releases/tag/v1.1.4 · [email protected]https://vuldb.com/cve/CVE-2026-90790 · [email protected]https://vuldb.com/submit/919747 · [email protected]https://vuldb.com/vuln/403296 · [email protected]https://vuldb.com/vuln/403296/cti · [email protected]
EPSS history
Timeline
  • 17 SEP 03:33Z
    EPSS moved — → 0%
    epss
  • 14 SEP 14:30Z
    a2aproject a2a-python Push Notification Sender base_push_notification_sender.py _dispatch_notification server-side request forgery
    cvelistv5