Vulnerability Description
A vulnerability was determined in a2aproject a2a-go up to 2.4.0. Impacted is an unknown function of the file a2asrv/rest.go of the component REST SSE handler. This manipulation causes resource consumption. It is possible to initiate the attack remotely. Upgrading to version 2.5.0 is recommended to address this issue. Patch name: ff6035bd21e44bb3ee1bfa547885b8c08327fa01. It is recommended to upgrade the affected component.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/a2aproject/a2a-go/
- https://github.com/a2aproject/a2a-go/commit/ff6035bd21e44bb3ee1bfa547885b8c08327
- https://github.com/a2aproject/a2a-go/pull/396
- https://github.com/a2aproject/a2a-go/releases/tag/v2.5.0
- https://vuldb.com/cve/CVE-2026-117503
- https://vuldb.com/submit/1015052
- https://vuldb.com/vuln/427070
- https://vuldb.com/vuln/427070/cti
FAQ
What is CVE-2026-117503?
CVE-2026-117503 is a vulnerability with a CVSS score of 5.3 (MEDIUM). A vulnerability was determined in a2aproject a2a-go up to 2.4.0. Impacted is an unknown function of the file a2asrv/rest.go of the component REST SSE handler. This manipulation causes resource consump...
How severe is CVE-2026-117503?
CVE-2026-117503 has been rated MEDIUM with a CVSS base score of 5.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-117503?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.