CVE-2026-90790
🔶 mediumSummary
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.
CVSS Score
6.3
Medium
EPSS Score
0.2
Exploit Probability
Published Date
2026-09-14
First Seen: 2026-09-16
📊 Relative Risk Intelligence
This CVE is Lower Risk - more severe than 37.9% of all 358,566 vulnerabilities in our database.
#222,760
Below average severity
Severity Percentile
🎯 CISA SSVC Assessment Updated: Sep 15, 2026
🔍 Exploitation Status
None
No known exploits
⚙️ Automatable
NO
Requires human interaction
💥 Technical Impact
Partial
Limited system impact
🏆 Discovered By
ez-lbz (VulDB User) (reporter)
SSVC data provided by
CISA
Last Modified
2026-09-15
Source
NVD 🔗
CVSS Vector 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
CVSS Vector 4.0
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/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
CWE IDs (Weakness Types)