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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
a2aproject a2a-dotnet affected
Version Status Constraints
1.0.0-preview3 affected —

No data.

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Project Subscriptions

Vendors Products
A2aproject Subscribe
A2a-dotnet Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/a2aproject/a2a-dotnet/ cve-icon cve-icon
https://github.com/a2aproject/a2a-dotnet/pull/453 cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-116476 cve-icon cve-icon
https://vuldb.com/submit/1014886 cve-icon cve-icon
https://vuldb.com/vuln/426389 cve-icon cve-icon
https://vuldb.com/vuln/426389/cti cve-icon cve-icon
History

Mon, 26 Oct 2026 19:00:00 +0000

Type Values Removed Values Added
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.
Title a2aproject a2a-dotnet TaskProjection TaskProjection.ApplyStatus race condition
First Time appeared A2aproject
A2aproject a2a-dotnet
Weaknesses CWE-362
CPEs cpe:2.3:a:a2aproject:a2a-dotnet:*:*:*:*:*:*:*:*
Vendors & Products A2aproject
A2aproject a2a-dotnet
References
Metrics cvssV2_0

{'score': 5.5, 'vector': 'AV:N/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:ND/RC:C'}

cvssV3_0

{'score': 5.4, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:C'}

cvssV3_1

{'score': 5.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:X/RC:C'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N/E:X'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-10-26T18:45:20.493Z

Reserved: 2026-10-26T10:59:36.503Z

Link: CVE-2026-116476

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-26T19:16:30.587

Modified: 2026-10-26T19:16:30.587

Link: CVE-2026-116476

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T20:30:15Z

Weaknesses