CVE-2026-117504
a2aproject a2a-go Distributed Manager distributed_manager.go Cancel denial of service
CVSS Score
5.3
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-404 |
| Vendor | a2aproject |
| Product | a2a-go |
| Published | Oct 27, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
a2aproject / a2a-go
2.0 2.1 2.2 2.3 2.4.0
References
vuldb.com: https://vuldb.com/vuln/427071 vuldb.com: https://vuldb.com/vuln/427071/cti vuldb.com: https://vuldb.com/cve/CVE-2026-117504 vuldb.com: https://vuldb.com/submit/1015053 github.com: https://github.com/a2aproject/a2a-go/pull/409 github.com: https://github.com/a2aproject/a2a-go/commit/14e41a978b31e134ffa1170d8657f9dd98529aa3 github.com: https://github.com/a2aproject/a2a-go/releases/tag/v2.5.0 github.com: https://github.com/a2aproject/a2a-go/
Credits
🔍 colorfullbz (VulDB User)