SSRF in A2aproject A2a-Rs
CVE-2026-113704
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- A2aproject A2a-Rs — versions 0.4.0, 0.4.1, 0.4.2
Weakness classification (CWE)
References
- github.com/a2aproject/a2a-rs/ (product)
- github.com/a2aproject/a2a-rs/commit/2ba50176ea9f222d9a7d0f0e8cfe6fae7cf4c224 (patch)
- github.com/a2aproject/a2a-rs/pull/124 (issue-tracking, patch)
- vuldb.com/cve/CVE-2026-113704 (third-party-advisory)
- vuldb.com/submit/1014883 (third-party-advisory)
- vuldb.com/vuln/422865 (technical-description, vdb-entry)
- vuldb.com/vuln/422865/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-113704?
- CVE-2026-113704 is a high-severity vulnerability in A2aproject A2a-Rs, classified under Server-Side Request Forgery (SSRF). CVSS score: 7.3/10. Published 2026-10-20.
- How severe is CVE-2026-113704?
- High severity. CVSS v3 base score is 7.3 out of 10.