{"id":"CVE-2026-116476","state":"PUBLISHED","title":"a2aproject a2a-dotnet TaskProjection TaskProjection.ApplyStatus race condition","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.","publishedAt":"2026-10-26T18:45:20.493Z","updatedAt":"2026-10-26T18:45:20.493Z","severity":{"score":5.3,"label":"Medium","version":"4.0","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","source":"VulDB"},"assigner":"VulDB","products":["a2aproject a2a-dotnet"],"affected":[{"vendor":"a2aproject","product":"a2a-dotnet","versions":[{"version":"1.0.0-preview3","status":"affected"}],"cpes":["cpe:2.3:a:a2aproject:a2a-dotnet:*:*:*:*:*:*:*:*"],"modules":["TaskProjection"]}],"references":["https://vuldb.com/vuln/426389","https://vuldb.com/vuln/426389/cti","https://vuldb.com/cve/CVE-2026-116476","https://vuldb.com/submit/1014886","https://github.com/a2aproject/a2a-dotnet/pull/453","https://github.com/a2aproject/a2a-dotnet/"],"weaknesses":["CWE-362"],"ingestedAt":"2026-10-29T20:10:43.281Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/116xxx/CVE-2026-116476.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-116476","state":"PUBLISHED","datePublished":"2026-10-26T18:45:20.493Z","dateUpdated":"2026-10-26T18:45:20.493Z","assignerShortName":"VulDB","assignerOrgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateReserved":"2026-10-26T10:59:36.503Z"},"containers":{"cna":{"title":"a2aproject a2a-dotnet TaskProjection TaskProjection.ApplyStatus race condition","descriptions":[{"lang":"en","value":"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."}],"affected":[{"vendor":"a2aproject","product":"a2a-dotnet","versions":[{"version":"1.0.0-preview3","status":"affected"}],"cpes":["cpe:2.3:a:a2aproject:a2a-dotnet:*:*:*:*:*:*:*:*"],"modules":["TaskProjection"]}],"references":[{"url":"https://vuldb.com/vuln/426389","name":"VDB-426389 | a2aproject a2a-dotnet TaskProjection TaskProjection.ApplyStatus race condition","tags":["vdb-entry","technical-description"]},{"url":"https://vuldb.com/vuln/426389/cti","name":"VDB-426389 | CTI Indicators (IOB, IOC, IOA)","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-116476","name":"CVE-2026-116476 | CVE Analysis and Report","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/1014886","name":"Submit #1014886 | a2aproject a2a-dotnet v1.0 CWE-362","tags":["third-party-advisory"]},{"url":"https://github.com/a2aproject/a2a-dotnet/pull/453","tags":["issue-tracking","patch"]},{"url":"https://github.com/a2aproject/a2a-dotnet/","tags":["product"]}],"metrics":[{"cvssV4_0":{"version":"4.0","baseScore":5.3,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_1":{"version":"3.1","baseScore":5.4,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV3_0":{"version":"3.0","baseScore":5.4,"vectorString":"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","baseSeverity":"MEDIUM"}},{"cvssV2_0":{"version":"2.0","baseScore":5.5,"vectorString":"AV:N/AC:L/Au:S/C:N/I:P/A:P/E:ND/RL:ND/RC:C"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-362","type":"CWE","lang":"en","description":"Race Condition"}]}],"providerMetadata":{"shortName":"VulDB","orgId":"1af790b2-7ee1-4545-860a-a788eba489b5","dateUpdated":"2026-10-26T18:45:20.493Z"},"timeline":[{"time":"2026-10-26T00:00:00.000Z","lang":"en","value":"Advisory disclosed"},{"time":"2026-10-26T01:00:00.000Z","lang":"en","value":"VulDB entry created"},{"time":"2026-10-26T12:04:54.000Z","lang":"en","value":"VulDB entry last update"}],"credits":[{"lang":"en","value":"colorfullbz (VulDB User)","type":"reporter"},{"lang":"en","value":"VulDB CNA Team","type":"coordinator"}],"x_generator":["VulDB PVTS v202610"]}}}}