CVE-2026-90819
Description
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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
No mitigations published for this CVE yet.
The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.
Propose a mitigation on Community Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here withsource_tier=community-verified.
References
- https://github.com/a2aproject/a2a-java/
- https://github.com/a2aproject/a2a-java/commit/247a655043f145f6f8e3853724b6a543eaa02001
- https://github.com/a2aproject/a2a-java/pull/1043
- https://github.com/a2aproject/a2a-java/pull/1053
- https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final
- https://vuldb.com/cve/CVE-2026-90819
- https://vuldb.com/submit/922996
- https://vuldb.com/vuln/403322
- https://vuldb.com/vuln/403322/cti
CWEs
CWE-93 CWE-113
Community-verified mitigations for this CVE will appear above when contributors publish them.
Verify integrity in audit chain (admin only). AS-IS.