CVE-2026-90819
- Source
- https://cve.org/CVERecord?id=CVE-2026-90819
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90819.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-90819
- Published
- 2026-09-14T20:30:11Z
- Modified
- 2026-10-28T11:09:50Z
- Severity
-
- 6.9 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X CVSS Calculator
- Summary
- a2aproject a2a-java Authorization Header Construction BasePushNotificationSender.java BasePushNotificationSender.dispatchNotification response splitting
- Details
-
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.
- Database specific
{ "cna_assigner": "VulDB", "cwe_ids": [ "CWE-113", "CWE-93" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90819.json" }- References
-
- https://github.com/a2aproject/a2a-java/
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90819.json
- https://nvd.nist.gov/vuln/detail/CVE-2026-90819
- https://vuldb.com/cve/CVE-2026-90819
- https://vuldb.com/submit/922996
- https://vuldb.com/vuln/403322
- https://vuldb.com/vuln/403322/cti
- 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
Affected packages
Git / github.com/a2aproject/a2a-java
Affected ranges
- Type
- GIT
- Repo
- https://github.com/a2aproject/a2a-java
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "1.2.0" }, { "last_affected": "1.2.0" } ], "source": "AFFECTED_FIELD", "strategy": "StandaloneSingleVersion" }, { "range": [ { "fixed": "247a655043f145f6f8e3853724b6a543eaa02001" } ], "source": "REFERENCES_COMMIT" }, { "original_tag": "v1.3.0.Final", "range": [ { "fixed": "43bde91e3319f0a92db3ac2104215dcdbbb77679" } ], "source": "REFERENCES_TAG" } ] }
Database specific
source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90819.json"
vanir_signatures
[
{
"deprecated": false,
"digest": {
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],
"threshold": 0.9
},
"id": "CVE-2026-90819-042422f6",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/a2aproject/a2a-java/commit/247a655043f145f6f8e3853724b6a543eaa02001",
"target": {
"file": "spec/src/main/java/org/a2aproject/sdk/spec/AuthenticationInfo.java"
}
},
{
"deprecated": false,
"digest": {
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],
"threshold": 0.9
},
"id": "CVE-2026-90819-3a1f8baa",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/a2aproject/a2a-java/commit/247a655043f145f6f8e3853724b6a543eaa02001",
"target": {
"file": "server-common/src/test/java/org/a2aproject/sdk/server/tasks/PushNotificationSenderTest.java"
}
},
{
"deprecated": false,
"digest": {
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],
"threshold": 0.9
},
"id": "CVE-2026-90819-a0631515",
"signature_type": "Line",
"signature_version": "v1",
"source": "https://github.com/a2aproject/a2a-java/commit/247a655043f145f6f8e3853724b6a543eaa02001",
"target": {
"file": "server-common/src/main/java/org/a2aproject/sdk/server/tasks/BasePushNotificationSender.java"
}
},
{
"deprecated": false,
"digest": {
"function_hash": "13695897972917501982974852893132390054",
"length": 1591
},
"id": "CVE-2026-90819-a9d188f2",
"signature_type": "Function",
"signature_version": "v1",
"source": "https://github.com/a2aproject/a2a-java/commit/247a655043f145f6f8e3853724b6a543eaa02001",
"target": {
"file": "server-common/src/main/java/org/a2aproject/sdk/server/tasks/BasePushNotificationSender.java",
"function": "dispatchNotification"
}
}
]
vanir_signatures_modified
"2026-10-28T11:09:50Z"