CVE-2026-117507

MEDIUM 5.4

a2aproject a2a-java TaskManager.saveTaskEvent race condition

CVSS Score

5.4

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-362
Vendor	a2aproject
Product	a2a-java
Published	Oct 27, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L/E:X/RL:O/RC:C

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

a2aproject / a2a-java

1.2.0.Final

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/427074 vuldb.com: https://vuldb.com/vuln/427074/cti vuldb.com: https://vuldb.com/cve/CVE-2026-117507 vuldb.com: https://vuldb.com/submit/1015060 github.com: https://github.com/a2aproject/a2a-java/pull/1045 github.com: https://github.com/a2aproject/a2a-java/commit/6b8e1e085c35e970ef0048901cd25850e4791ec2 github.com: https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final github.com: https://github.com/a2aproject/a2a-java/

Credits

🔍 colorfullbz (VulDB User)