CVE-2026-113704 Details
Description
A vulnerability has been found in a2aproject a2a-rs up to 0.4.3. This affects the function HttpPushSender of the file crates/server/src/push_notification_sender.rs of the component Push Notification Handler. Such manipulation of the argument TaskPushNotificationConfig leads to server-side request forgery. The attack may be launched remotely. The name of the patch is 2ba50176ea9f222d9a7d0f0e8cfe6fae7cf4c224. Applying a patch is advised to resolve this issue.
A server-side request forgery (SSRF) vulnerability has been identified in the a2aproject a2a-rs application, specifically in versions through 0.4.3. The issue arises in the Push Notification Handler component, within the HttpPushSender function of the file crates/server/src/push_notification_sender.rs. The vulnerability can be exploited remotely by manipulating the TaskPushNotificationConfig argument, leading to unauthorized requests being sent from the server.
Users are advised to update to version 0.4.4 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
VolerionCVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Oct 20, 2026CISA-ADP
Assessed Oct 21, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/a2aproject/a2a-rs/ | [email protected] | Vendor |
| https://github.com/a2aproject/a2a-rs/commit/2ba50176ea9f222d9a7d0f0e8cfe6fae7cf4c224 | [email protected] | Source CodeVendor |
| https://github.com/a2aproject/a2a-rs/pull/124 | [email protected] | Issue TrackingVendor |
| https://vuldb.com/cve/CVE-2026-113704 | [email protected] | AdvisoryPermission Required |
| https://vuldb.com/submit/1014883 | [email protected] | Permission Required |
| https://vuldb.com/vuln/422865 | [email protected] | Permission Required |
| https://vuldb.com/vuln/422865/cti | [email protected] | Content Wall |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| a2aproject a2a-rs | <= 0.4.3 (semver) |
CPE
Remediation
| |
Change History
2 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Oct 21, 2026 | CVE Modified | CISA-ADP |
| Oct 20, 2026 | New CVE Received | [email protected] |