CVE-2026-117504

medium

A vulnerability was identified in a2aproject a2a-go up to 2.4.0.

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.

CVSS

5.3

5.3 (CVSS v3.1)

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Severity source: NVD CVSS v3.1 (cna@vuldb.com)

Timeline (UTC)

Published: 2026-10-27 14:16

Modified: 2026-10-27 14:52

NVD status: Deferred

Last synced 1 day ago

Verified against the source API 2026-10-28 11:30 UTC

Exploitation

Not listed in CISA KEV (as of last catalog sync)

Absence from KEV does not mean a CVE is not exploited. Exploitation status: unknown (no authoritative evidence in our sources).

Affected products

Not reported by the source (unknown — not "none").

Weakness classification (CWE)

CWE-404

Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.

Mitigation & advisories

No vendor advisory or patch reference tagged by NVD. Check the references below.

References

https://github.com/a2aproject/a2a-go/ cna@vuldb.com
https://github.com/a2aproject/a2a-go/commit/14e41a978b31e134ffa1170d8657f9dd98529aa3 cna@vuldb.com
https://github.com/a2aproject/a2a-go/pull/409 cna@vuldb.com
https://github.com/a2aproject/a2a-go/releases/tag/v2.5.0 cna@vuldb.com
https://vuldb.com/cve/CVE-2026-117504 cna@vuldb.com
https://vuldb.com/submit/1015053 cna@vuldb.com
https://vuldb.com/vuln/427071 cna@vuldb.com
https://vuldb.com/vuln/427071/cti cna@vuldb.com

Data sources

NVD CVE API 2.0 — fetched 2026-10-28 11:30 UTC · record ↗

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