CVE-2026-113704

a2aproject a2a-rs Push Notification push_notification_sender.rs HttpPushSender server-side request forgery

State: Published
Severity: 6.9 Medium
Published: Oct 20, 2026
Updated: Oct 21, 2026
Reserved: Oct 20, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X	VulDB
3.1	7.3 High	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C	VulDB
3.0	7.3 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C	VulDB

Weaknesses

CWE-918 Server-Side Request Forgery

Affected Products

Product	Versions
a2a-rsa2aproject	0.4.0Affected 0.4.1Affected 0.4.2Affected 0.4.3Affected

References

VDB-422865 | a2aproject a2a-rs Push Notification push_notification_sender.rs HttpPushSender server-side request forgeryvdb-entrytechnical-description
VDB-422865 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-113704 | CVE Analysis and Reportthird-party-advisory
Submit #1014883 | a2aproject a2a-rs a2a-server-lf ≤ 0.4.3 SSRFthird-party-advisory
https://github.com/a2aproject/a2a-rs/pull/124issue-trackingpatch
https://github.com/a2aproject/a2a-rs/commit/2ba50176ea9f222d9a7d0f0e8cfe6fae7cf4c224patch
https://github.com/a2aproject/a2a-rs/product

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.