Medium severity · published Oct 26, 2026
CVE-2026-116476
a2aproject a2a-dotnet TaskProjection TaskProjection.ApplyStatus race condition
New
5.4
CVSS
0.2%
EPSS
No
On KEV
Description
A weakness has been identified in a2aproject a2a-dotnet up to 1.0.0-preview3. The affected element is the function TaskProjection.ApplyStatus of the component TaskProjection. Executing a manipulation can lead to race condition. The attack may be performed from remote. The pull request to fix this issue awaits acceptance.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 10% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A2
a2a-dotnet · a2aproject
1.0.0-preview3 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-116476
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-116476
github.com
https://github.com/a2aproject/a2a-dotnet/
github.com
https://github.com/a2aproject/a2a-dotnet/pull/453
vuldb.com
https://vuldb.com/cve/CVE-2026-116476
vuldb.com
https://vuldb.com/submit/1014886
vuldb.com
https://vuldb.com/vuln/426389
vuldb.com
https://vuldb.com/vuln/426389/cti
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