CVE-2026-117504
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. Limited direct impact.
- Exploit odds
- 0.6% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- ReservedThe CVE id was reserved by its CNA
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 0.6% in the next 30 days (EPSS).
- Severity: 6.9 MEDIUM (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 0.6% · EPSS, next 30 days
- Weakness
- CWE-404
- Record status
- Deferred
Attack profile CVSS 4.0 · 6.9
- Attack vector
- Network
- Complexity
- Low
- Attack requirements
- None
- Privileges needed
- None
- User interaction
- None
- Confidentiality
- None
- Integrity
- None
- Availability
- Low
Raw vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2026-117504.md and follow it. Check whether this project is affected by CVE-2026-117504. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/a2aproject/a2a-go/commit/14e41a978b31e134ffa1170d8657f9dd98529aa3
- https://github.com/a2aproject/a2a-go/pull/409
- https://github.com/a2aproject/a2a-go/releases/tag/v2.5.0
References
- https://github.com/a2aproject/a2a-go/
- https://github.com/a2aproject/a2a-go/commit/14e41a978b31e134ffa1170d8657f9dd98529aa3
- https://github.com/a2aproject/a2a-go/pull/409
- https://github.com/a2aproject/a2a-go/releases/tag/v2.5.0
- https://vuldb.com/cve/CVE-2026-117504
- https://vuldb.com/submit/1015053
- https://vuldb.com/vuln/427071
- https://vuldb.com/vuln/427071/cti