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22 vulnerabilities found for by a2aproject

CVE-2026-118128 (GCVE-0-2026-118128)
Vulnerability from cvelistv5
Published
2026-10-27 22:15
Modified
2026-10-28 16:12
CWE
Summary
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.
Impacted products
Vendor Product Version
a2aproject a2a-js Version: 1.0
Version: 1.1.0
    cpe:2.3:a:a2aproject:a2a-js:*:*:*:*:*:*:*:*
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CVE-2026-117507 (GCVE-0-2026-117507)
Vulnerability from cvelistv5
Published
2026-10-27 15:00
Modified
2026-10-27 15:00
CWE
Summary
A security vulnerability has been detected in a2aproject a2a-java up to 1.2.0.Final. This impacts the function TaskManager.saveTaskEvent. The manipulation leads to race condition. The attack may be initiated remotely. Upgrading to version 1.3.0.Final will fix this issue. The identifier of the patch is 6b8e1e085c35e970ef0048901cd25850e4791ec2. The affected component should be upgraded.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: 1.2.0.Final
    cpe:2.3:a:a2aproject:a2a-java:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


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CVE-2026-117506 (GCVE-0-2026-117506)
Vulnerability from cvelistv5
Published
2026-10-27 14:45
Modified
2026-10-27 14:45
CWE
Summary
A weakness has been identified in a2aproject a2a-java up to 1.2.0.Final. This affects the function InMemoryPushNotificationConfigStore.setInfo of the file extras/push-notification-config-store-database-jpa/src/main/java/org/a2aproject/sdk/extras/pushnotificationconfigstore/database/jpa/JpaDatabasePushNotificationConfigStore.java of the component Push Notification Config Store. Executing a manipulation can lead to resource consumption. The attack can be launched remotely. Upgrading to version 1.3.0.Final mitigates this issue. This patch is called b478810a03b4a16841d36aca5c6e87d8f48fce67. You should upgrade the affected component.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: 1.2.0.Final
    cpe:2.3:a:a2aproject:a2a-java:*:*:*:*:*:*:*:*
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CVE-2026-117505 (GCVE-0-2026-117505)
Vulnerability from cvelistv5
Published
2026-10-27 14:30
Modified
2026-10-28 16:16
CWE
Summary
A security flaw has been discovered in a2aproject a2a-java up to 1.2.0.Final. The impacted element is the function queue.offer of the component ChildQueue. Performing a manipulation results in resource consumption. The attack can be initiated remotely. Upgrading to version 1.3.0.Final is sufficient to resolve this issue. The patch is named be663f806efcfdddd2805d214fae4998379ac5f2. It is advisable to upgrade the affected component.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: 1.2.0.Final
    cpe:2.3:a:a2aproject:a2a-java:*:*:*:*:*:*:*:*
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Show details on NVD website


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CVE-2026-117504 (GCVE-0-2026-117504)
Vulnerability from cvelistv5
Published
2026-10-27 14:00
Modified
2026-10-27 14:00
CWE
Summary
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.
Impacted products
Vendor Product Version
a2aproject a2a-go Version: 2.0
Version: 2.1
Version: 2.2
Version: 2.3
Version: 2.4.0
    cpe:2.3:a:a2aproject:a2a-go:*:*:*:*:*:*:*:*
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Show details on NVD website


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CVE-2026-117503 (GCVE-0-2026-117503)
Vulnerability from cvelistv5
Published
2026-10-27 13:45
Modified
2026-10-27 13:45
CWE
Summary
A vulnerability was determined in a2aproject a2a-go up to 2.4.0. Impacted is an unknown function of the file a2asrv/rest.go of the component REST SSE handler. This manipulation causes resource consumption. It is possible to initiate the attack remotely. Upgrading to version 2.5.0 is recommended to address this issue. Patch name: ff6035bd21e44bb3ee1bfa547885b8c08327fa01. It is recommended to upgrade the affected component.
Impacted products
Vendor Product Version
a2aproject a2a-go Version: 2.0
Version: 2.1
Version: 2.2
Version: 2.3
Version: 2.4.0
    cpe:2.3:a:a2aproject:a2a-go:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


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CVE-2026-116479 (GCVE-0-2026-116479)
Vulnerability from cvelistv5
Published
2026-10-26 19:45
Modified
2026-10-27 14:18
CWE
  • CWE-209 - Information Exposure Through Error Message
  • CWE-200 - Information Disclosure
Summary
A flaw has been found in a2aproject a2a-java up to 1.2.0.Final. This impacts the function getMessage of the component JSON-RPC Error Handler. This manipulation causes information exposure through error message. The attack can be initiated remotely. Upgrading to version 1.3.0.Final will fix this issue. Patch name: bbee3369f3825d0fba2373d821f6dc6d4fc82ec0. Upgrading the affected component is advised.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: 1.2.0.Final
    cpe:2.3:a:a2aproject:a2a-java:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


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CVE-2026-116478 (GCVE-0-2026-116478)
Vulnerability from cvelistv5
Published
2026-10-26 19:30
Modified
2026-10-26 19:30
CWE
  • CWE-209 - Information Exposure Through Error Message
  • CWE-200 - Information Disclosure
Summary
A vulnerability was detected in a2aproject a2a-go up to 2.4.0. This affects the function CreateExecutor of the file a2asrv/agentexec.go of the component Push Notification Handler. The manipulation results in information exposure through error message. It is possible to launch the attack remotely. Upgrading to version 2.5.0 mitigates this issue. The patch is identified as f4d588216b0c9520e94d571bab725c38ce23064c. It is recommended to upgrade the affected component.
Impacted products
Vendor Product Version
a2aproject a2a-go Version: 2.0
Version: 2.1
Version: 2.2
Version: 2.3
Version: 2.4.0
    cpe:2.3:a:a2aproject:a2a-go:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


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CVE-2026-116477 (GCVE-0-2026-116477)
Vulnerability from cvelistv5
Published
2026-10-26 19:15
Modified
2026-10-26 19:15
CWE
  • CWE-209 - Information Exposure Through Error Message
  • CWE-200 - Information Disclosure
Summary
A security vulnerability has been detected in a2aproject a2a-dotnet up to 1.0.0-preview2. The impacted element is the function A2AJsonRpcProcessor.ProcessRequestAsync of the file src/A2A.AspNetCore/A2AJsonRpcProcessor.cs of the component Parser. The manipulation leads to information exposure through error message. It is possible to initiate the attack remotely. Upgrading to version 1.0.0-preview3 is sufficient to resolve this issue. The identifier of the patch is ccbd12b6108a6a8f0fd5d8b4a9ece3c8a94ba1e4. Upgrading the affected component is recommended.
Impacted products
Vendor Product Version
a2aproject a2a-dotnet Version: 1.0.0-preview2
    cpe:2.3:a:a2aproject:a2a-dotnet:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


{
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CVE-2026-116476 (GCVE-0-2026-116476)
Vulnerability from cvelistv5
Published
2026-10-26 18:45
Modified
2026-10-26 18:45
CWE
Summary
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.
References
Impacted products
Vendor Product Version
a2aproject a2a-dotnet Version: 1.0.0-preview3
    cpe:2.3:a:a2aproject:a2a-dotnet:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


{
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CVE-2026-113707 (GCVE-0-2026-113707)
Vulnerability from cvelistv5
Published
2026-10-20 23:30
Modified
2026-10-28 14:57
CWE
Summary
A security flaw has been discovered in a2aproject a2a-rs up to 0.4.4. The affected element is the function InMemoryTaskStore::update of the file a2a-server/src/task_store/inmemory.rs. The manipulation results in race condition. The attack may be performed from remote. The patch is identified as 7050c7d329238539424ee46440e23b91c4825bee. It is advisable to implement a patch to correct this issue.
Impacted products
Vendor Product Version
a2aproject a2a-rs Version: 0.4.0
Version: 0.4.1
Version: 0.4.2
Version: 0.4.3
Version: 0.4.4
    cpe:2.3:a:a2aproject:a2a-rs:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


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CVE-2026-113706 (GCVE-0-2026-113706)
Vulnerability from cvelistv5
Published
2026-10-20 23:15
Modified
2026-10-27 21:32
CWE
Summary
A vulnerability was identified in a2aproject a2a-rs up to 0.4.3. Impacted is an unknown function of the file a2a-server/src/task_store/inmemory.rs. The manipulation of the argument historyLength leads to information disclosure. The attack is possible to be carried out remotely. The identifier of the patch is 68f1b7e772ae5d6c9e581ac9b48bcddd10fe70eb. To fix this issue, it is recommended to deploy a patch.
Impacted products
Vendor Product Version
a2aproject a2a-rs Version: 0.4.0
Version: 0.4.1
Version: 0.4.2
Version: 0.4.3
    cpe:2.3:a:a2aproject:a2a-rs:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


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CVE-2026-113705 (GCVE-0-2026-113705)
Vulnerability from cvelistv5
Published
2026-10-20 22:45
Modified
2026-10-28 15:49
CWE
  • CWE-209 - Information Exposure Through Error Message
  • CWE-200 - Information Disclosure
Summary
A vulnerability was determined in a2aproject a2a-rs up to 0.4.3. This issue affects some unknown processing of the file a2a-server/src/error.rs. Executing a manipulation can lead to information exposure through error message. The attack can be executed remotely. This patch is called 713b943af94ab2d521d483b841618b97a2e78a4d. A patch should be applied to remediate this issue.
Impacted products
Vendor Product Version
a2aproject a2a-rs Version: 0.4.0
Version: 0.4.1
Version: 0.4.2
Version: 0.4.3
    cpe:2.3:a:a2aproject:a2a-rs:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


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CVE-2026-113704 (GCVE-0-2026-113704)
Vulnerability from cvelistv5
Published
2026-10-20 22:00
Modified
2026-10-21 15:51
CWE
  • CWE-918 - Server-Side Request Forgery
Summary
A vulnerability has been found in a2aproject a2a-rs up to 0.4.3. This affects the function HttpPushSender of the file crates/server/src/push_notification_sender.rs of the component Push Notification Handler. Such manipulation of the argument TaskPushNotificationConfig leads to server-side request forgery. The attack may be launched remotely. The name of the patch is 2ba50176ea9f222d9a7d0f0e8cfe6fae7cf4c224. Applying a patch is advised to resolve this issue.
Impacted products
Vendor Product Version
a2aproject a2a-rs Version: 0.4.0
Version: 0.4.1
Version: 0.4.2
Version: 0.4.3
    cpe:2.3:a:a2aproject:a2a-rs:*:*:*:*:*:*:*:*
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CVE-2026-111765 (GCVE-0-2026-111765)
Vulnerability from cvelistv5
Published
2026-10-20 15:10
Modified
2026-10-22 21:32
CWE
  • CWE-522 - Insufficiently Protected Credentials
Summary
A2A Java SDK is the official Java SDK for the Agent2Agent (A2A) Protocol. Starting in version 1.3.0.Final and prior to version 1.3.2.Final, the AndroidA2AHttpClient synchronous POST path overrides the disabled-redirect setting in AndroidA2AHttpClient.createConnection() with the PostBuilder default followRedirects value of true, leaving a residual of the earlier credential-redirect fix. JSONRPCTransport and RestTransport add interceptor-produced authentication headers and call synchronous post() without disabling redirects. AuthInterceptor permits X-API-Key, API-Key, X-Auth-Token, and X-Authentication headers; Android's repackaged OkHttp strips Authorization on cross-authority redirects but retains these nonstandard headers, disclosing a complete configured API key or token to another authority. The additional exposure applies when redirect or front-door behavior is compromised separately from the credential-handling component, or those components operate in different trust domains; a completely malicious initial origin already receives the credential on the first request. Autonomous clients require no human action, while user-invoked workflows can require interaction. Explicit followRedirects(false) prevents the redirected request. The demonstrated impact is credential disclosure, not subsequent credential use, integrity or availability impact, code execution, or host compromise. This issue is fixed in version 1.3.2.Final.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: >= 1.3.0.Final, < 1.3.2.Final
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Show details on NVD website


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CVE-2026-111764 (GCVE-0-2026-111764)
Vulnerability from cvelistv5
Published
2026-10-20 15:05
Modified
2026-10-20 16:15
CWE
  • CWE-862 - Missing Authorization
  • CWE-1188 - Insecure Default Initialization of Resource
Summary
A2A Java SDK is the official Java SDK for the Agent2Agent (A2A) Protocol. Prior to 1.3.0.Final, the default InMemoryTaskStore configuration performs no authorization on task reads: the no-argument constructor sets authorizationProvider to null, and InMemoryTaskStore.get(String taskId) returns the stored task without checking the caller or owner. Authorization depends on supplying a TaskAuthorizationProvider and routing requests through AuthorizationRequestHandlerDecorator, whether installed through CDI or explicitly by the application. Default store wiring and manually constructed DefaultRequestHandler.builder().build() handlers, including integrations such as Spring, leave task reads unprotected when no effective authorization-provider and decorator check is installed. In a multi-caller deployment using the default configuration, a caller who knows or guesses another caller's task ID can retrieve the task status, context ID, message history, and artifacts. The default/reference transport endpoints do not enforce authentication, so the task-read disclosure is reachable by an unauthenticated caller rather than requiring a privileged account. This issue is fixed in version 1.3.0.Final.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: < 1.3.0.Final
Create a notification for this product.
Show details on NVD website


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CVE-2026-111763 (GCVE-0-2026-111763)
Vulnerability from cvelistv5
Published
2026-10-20 15:03
Modified
2026-10-21 15:54
CWE
  • CWE-522 - Insufficiently Protected Credentials
Summary
A2A Java SDK is the official Java SDK for the Agent2Agent (A2A) Protocol. Prior to 1.3.0.Final, a malicious or compromised remote agent can cause the default JDK-based client to forward a configured API key to a third-party server. When a client application configures credentials through `CredentialService`, `AuthInterceptor.intercept` in `client/transport/spi/src/main/java/org/a2aproject/sdk/client/transport/spi/interceptors/auth/AuthInterceptor.java` uses `APIKeySecurityScheme.name()` from the remote AgentCard directly as the HTTP header name containing the credential, without checking that the declared location is HEADER. JdkA2AHttpClient uses followRedirects(NORMAL), so an agent-controlled cross-origin redirect forwards the custom credential-bearing header even when the standard Authorization header is stripped. The attack requires configured API key credentials for the agent's security scheme and control of the agent's AgentCard and redirect response, but no additional client privileges. This issue is fixed in version 1.3.0.Final.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: < 1.3.0.Final
Create a notification for this product.
Show details on NVD website


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CVE-2026-111762 (GCVE-0-2026-111762)
Vulnerability from cvelistv5
Published
2026-10-20 14:56
Modified
2026-10-28 14:12
CWE
  • CWE-532 - Insertion of Sensitive Information into Log File
Summary
A2A Java SDK is the official Java SDK for the Agent2Agent (A2A) Protocol. Prior to 1.3.0.Final, RestHandler.parseRequestBody in `transport/rest/src/main/java/org/a2aproject/sdk/transport/rest/handler/RestHandler.java` logs the entire JSON request body at SEVERE level when JsonFormat.parser().merge() throws InvalidProtocolBufferException. With push notifications enabled, createTaskPushNotificationConfiguration reaches this parser for requests to `/v1/tenants/{tenant}/tasks/{taskId}/pushNotificationConfigs`, whose token and authentication.credentials fields can contain bearer tokens and authentication credentials for client push endpoints. A valid JSON body that fails protobuf deserialization, including an unknown field under strict parsing or a schema mismatch, causes those secrets to be written to the server logs in cleartext. An attacker with access to the server logs or a log aggregation system can retrieve the credentials and potentially use the credentials to send forged task status updates to the client's push notification endpoint. This issue is fixed in version 1.3.0.Final.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: < 1.3.0.Final
Create a notification for this product.
Show details on NVD website


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CVE-2026-111761 (GCVE-0-2026-111761)
Vulnerability from cvelistv5
Published
2026-10-20 14:54
Modified
2026-10-22 21:30
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Summary
A2A Java SDK is the official Java SDK for the Agent2Agent (A2A) Protocol. Prior to 1.3.0.Final, BasePushNotificationSender in server-common sends task data to the URL in TaskPushNotificationConfig without destination validation, scheme restrictions, or bounds on redirects. InMemoryPushNotificationConfigStore.setInfo stores the URL verbatim, and onCreateTaskPushNotificationConfig does not validate the destination. In the default deployment with push notifications enabled, an unauthenticated caller can register a destination through an inline SendMessage configuration or CreateTaskPushNotificationConfig for an existing task, causing task status and artifact updates to send requests from the server's network position to loopback, private, link-local cloud-metadata, IPv6 unique-local, unspecified, or multicast destinations where routing permits. JdkA2AHttpClient and VertxA2AHttpClient follow redirects, allowing a webhook redirect to bypass creation-time destination checks and convert a POST into a GET; hostname-only checks also do not prevent DNS rebinding. Direct POST delivery can push attacker-influenced task data into internal services, whereas a redirected POST-to-GET request drops the body. The sender discards the fetched response and does not expose delivery success or failure, so the demonstrated behavior does not provide response read-back. No credentials or user interaction are required. This issue is fixed in version 1.3.0.Final.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: < 1.3.0.Final
Create a notification for this product.
Show details on NVD website


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CVE-2026-90820 (GCVE-0-2026-90820)
Vulnerability from cvelistv5
Published
2026-09-14 20:45
Modified
2026-09-15 13:55
CWE
Summary
A security vulnerability has been detected in a2aproject a2a-java 1.2.0. The impacted element is the function AuthorizationRequestHandlerDecorator.onListTasks of the file server-common/src/main/java/org/a2aproject/sdk/server/requesthandlers/AuthorizationRequestHandlerDecorator.java. Such manipulation leads to missing authorization. The attack can be launched remotely. Upgrading to version 1.3.0 is sufficient to resolve this issue. The name of the patch is e9a1abf9c90c02b16d17293afdc3cc2f555d63a6. The affected component should be upgraded.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: 1.2.0
    cpe:2.3:a:a2aproject:a2a-java:*:*:*:*:*:*:*:*
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CVE-2026-90819 (GCVE-0-2026-90819)
Vulnerability from cvelistv5
Published
2026-09-14 20:30
Modified
2026-09-15 14:25
CWE
Summary
A weakness has been identified in a2aproject a2a-java 1.2.0. The affected element is the function BasePushNotificationSender.dispatchNotification of the file server-common/src/main/java/org/a2aproject/sdk/server/tasks/BasePushNotificationSender.java of the component Authorization Header Construction. This manipulation causes http response splitting. The attack can be initiated remotely. Upgrading to version 1.3.0 is sufficient to fix this issue. Patch name: 247a655043f145f6f8e3853724b6a543eaa02001. You should upgrade the affected component.
Impacted products
Vendor Product Version
a2aproject a2a-java Version: 1.2.0
    cpe:2.3:a:a2aproject:a2a-java:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


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CVE-2026-90790 (GCVE-0-2026-90790)
Vulnerability from cvelistv5
Published
2026-09-14 14:30
Modified
2026-09-15 13:56
CWE
  • CWE-918 - Server-Side Request Forgery
Summary
A security vulnerability has been detected in a2aproject a2a-python up to 1.1.3. This affects the function _dispatch_notification of the file src/a2a/server/tasks/base_push_notification_sender.py of the component Push Notification Sender. The manipulation of the argument push_info.url leads to server-side request forgery. Remote exploitation of the attack is possible. Upgrading to version 1.1.4 is able to mitigate this issue. It is suggested to upgrade the affected component.
Impacted products
Vendor Product Version
a2aproject a2a-python Version: 1.1.0
Version: 1.1.1
Version: 1.1.2
Version: 1.1.3
    cpe:2.3:a:a2aproject:a2a-python:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website


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    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-90790",
    "datePublished": "2026-09-14T14:30:35.448Z",
    "dateReserved": "2026-09-13T13:24:51.272Z",
    "dateUpdated": "2026-09-15T13:56:53.326Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}