Vulnerability in A2aproject A2a-Go
CVE-2026-117504
A vulnerability was identified in a2aproject a2a-go up to 2.4.0. The affected element is the function Cancel of the file internal/taskexec/distributed_manager.go of the component Distributed Manager. Such manipulation leads to denial of service. It is possible to launch the attack remotely. Upgrading to version 2.5.0 is sufficient to fix this issue. The name of the patch is 14e41a978b31e134ffa1170d8657f9dd98529aa3. Upgrading the affected component is advised.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/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-Go — versions 2.0, 2.1, 2.2
Weakness classification (CWE)
References
- github.com/a2aproject/a2a-go/ (product)
- github.com/a2aproject/a2a-go/commit/14e41a978b31e134ffa1170d8657f9dd98529aa3 (patch)
- github.com/a2aproject/a2a-go/pull/409 (issue-tracking, patch)
- github.com/a2aproject/a2a-go/releases/tag/v2.5.0 (patch)
- vuldb.com/cve/CVE-2026-117504 (third-party-advisory)
- vuldb.com/submit/1015053 (third-party-advisory)
- vuldb.com/vuln/427071 (technical-description, vdb-entry)
- vuldb.com/vuln/427071/cti (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-117504?
- CVE-2026-117504 is a medium-severity vulnerability in A2aproject A2a-Go, classified under Improper Resource Shutdown or Release. CVSS score: 5.3/10. Published 2026-10-27.
- How severe is CVE-2026-117504?
- Medium severity. CVSS v3 base score is 5.3 out of 10.