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.

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact None

Vulnerable System Integrity Impact None

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required Low

Scope Unchanged

Confidentiality Impact None

Integrity Impact None

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication Single

Confidentiality Impact None

Integrity Impact None

Availability Impact Partial

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
a2aproject a2a-java affected
Version Status Constraints
1.2.0.Final affected —
1.3.0.Final unaffected —

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Project Subscriptions

Vendors Products
A2aproject Subscribe
A2a-java Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/a2aproject/a2a-java/ cve-icon cve-icon
https://github.com/a2aproject/a2a-java/commit/be663f806efcfdddd2805d214fae4998379ac5f2 cve-icon cve-icon
https://github.com/a2aproject/a2a-java/pull/1040 cve-icon cve-icon
https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final cve-icon cve-icon
https://vuldb.com/cve/CVE-2026-117505 cve-icon cve-icon
https://vuldb.com/submit/1015054 cve-icon cve-icon
https://vuldb.com/vuln/427072 cve-icon cve-icon
https://vuldb.com/vuln/427072/cti cve-icon cve-icon
History

Tue, 27 Oct 2026 14:45:00 +0000

Type Values Removed Values Added
Description 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.
Title a2aproject a2a-java ChildQueue queue.offer resource consumption
First Time appeared A2aproject
A2aproject a2a-java
Weaknesses CWE-400
CWE-404
CPEs cpe:2.3:a:a2aproject:a2a-java:*:*:*:*:*:*:*:*
Vendors & Products A2aproject
A2aproject a2a-java
References
Metrics cvssV2_0

{'score': 4, 'vector': 'AV:N/AC:L/Au:S/C:N/I:N/A:P/E:ND/RL:OF/RC:C'}

cvssV3_0

{'score': 4.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C'}

cvssV3_1

{'score': 4.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-10-27T14:30:19.859Z

Reserved: 2026-10-27T08:47:27.710Z

Link: CVE-2026-117505

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-10-27T15:16:57.287

Modified: 2026-10-27T15:16:57.287

Link: CVE-2026-117505

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-27T15:30:05Z

Weaknesses