Medium severity · published Oct 27, 2026
CVE-2026-117505
a2aproject a2a-java ChildQueue queue.offer resource consumption
New
4.3
CVSS
–
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
None
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
A2
a2a-java · a2aproject
1.2.0.Final · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-117505
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-117505
github.com
https://github.com/a2aproject/a2a-java/
github.com
https://github.com/a2aproject/a2a-java/commit/be663f806efcfdddd2805d214fae4998379ac5f2
github.com
https://github.com/a2aproject/a2a-java/pull/1040
github.com
https://github.com/a2aproject/a2a-java/releases/tag/v1.3.0.Final
vuldb.com
https://vuldb.com/cve/CVE-2026-117505
vuldb.com
https://vuldb.com/submit/1015054
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