| Title | a2aproject a2a-java v1.2.0 CRLF |
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| Description | BasePushNotificationSender.dispatchNotification built the Authorization header as scheme + " " + credentials with direct string concatenation. Both values are client-controlled (stored in the push notification config), so a credential or scheme containing \r/\n could inject arbitrary extra headers (CWE-113). The JDK HttpClient happens to validate headers, but A2AHttpClient is a pluggable SPI whose implementations (including custom ones) cannot be assumed to do the same. |
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| Source | ⚠️ https://github.com/a2aproject/a2a-java/pull/1043 |
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| User | ez-lbz (UID 87033) |
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| Submission | 08/11/2026 17:07 (1 month ago) |
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| Moderation | 09/13/2026 21:01 (1 month later) |
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| Status | Accepted |
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| VulDB entry | 403322 [a2aproject a2a-java 1.2.0 Authorization Header Construction BasePushNotificationSender.java BasePushNotificationSender.dispatchNotification response splitting] |
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| Points | 20 |
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