Medium severity · published Oct 27, 2026
CVE-2026-118128
a2aproject a2a-js Task Status Update result_manager.ts ResultManager.applyStatusUpdate race condition
New
6.5
CVSS
–
EPSS
No
On KEV
Description
A vulnerability has been found in a2aproject a2a-js up to 1.1.0. Impacted is the function ResultManager.applyStatusUpdate of the file src/server/result_manager.ts of the component Task Status Update Handler. Such manipulation leads to race condition. The attack may be launched remotely. Upgrading to version 1.2.0 is recommended to address this issue. The name of the patch is 7b87c9480bfa643f9d2b2eaf06988b3d3a95de25. It is recommended to upgrade the affected component.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
None
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A2
a2a-js · a2aproject
1.0; 1.1.0 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-118128
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-118128
github.com
https://github.com/a2aproject/a2a-js/
github.com
https://github.com/a2aproject/a2a-js/commit/7b87c9480bfa643f9d2b2eaf06988b3d3a95de25
github.com
https://github.com/a2aproject/a2a-js/pull/636
github.com
https://github.com/a2aproject/a2a-js/releases/tag/v1.2.0
vuldb.com
https://vuldb.com/cve/CVE-2026-118128
vuldb.com
https://vuldb.com/submit/1015057