CVE-2026-117503
mediumA vulnerability was determined in a2aproject a2a-go up to 2.4.0.
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
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)
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/ff6035bd21e44bb3ee1bfa547885b8c08327fa01 cna@vuldb.com
- https://github.com/a2aproject/a2a-go/pull/396 cna@vuldb.com
- https://github.com/a2aproject/a2a-go/releases/tag/v2.5.0 cna@vuldb.com
- https://vuldb.com/cve/CVE-2026-117503 cna@vuldb.com
- https://vuldb.com/submit/1015052 cna@vuldb.com
- https://vuldb.com/vuln/427070 cna@vuldb.com
- https://vuldb.com/vuln/427070/cti cna@vuldb.com
Data sources
NVD CVE API 2.0 — fetched 2026-10-28 11:30 UTC · record ↗