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TI-2026-81356 Aliases CVE-2026-117506GHSA-w333-36mh-cfv5

Resource consumption in a2a-java push notification config store

Priority LOW 24CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

The a2aproject a2a-java push notification config store from 1.2.0.Final before 1.3.0.Final contains a flaw in InMemoryPushNotificationConfigStore.setInfo. Improper resource handling (CWE-400) lets a remote attacker with low privileges trigger resource consumption by manipulating the store. The attack requires no user interaction and affects availability.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

A weakness has been identified in a2aproject a2a-java up to 1.2.0.Final. This affects the function InMemoryPushNotificationConfigStore.setInfo of the file extras/push-notification-config-store-database-jpa/src/main/java/org/a2aproject/sdk/extras/pushnotificationconfigstore/database/jpa/JpaDatabasePushNotificationConfigStore.java of the component Push Notification Config Store. Executing a manipulation can lead to resource consumption. The attack can be launched remotely. Upgrading to version 1.3.0.Final mitigates this issue. This patch is called b478810a03b4a16841d36aca5c6e87d8f48fce67. You should upgrade the affected component.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.0031 23rd percentileScored 2026-11-07
Fix Fixed a2a-java (a2aproject): 1.3.0.Final

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
a2aprojecta2a-java1.2.0.Final1.3.0.FinalPatch availableCNA
  • a2a-java Vendora2aproject Affected 1.2.0.Final Fixed in 1.3.0.Final Patch available CNA

CPE names CNA · 1

CPEVersionsRoleVendor
cpe:2.3:a:a2aproject:a2a-java:*:*:*:*:*:*:*:*——a2aproject
  • cpe:2.3:a:a2aproject:a2a-java:*:*:*:*:*:*:*:* Versions — — ·a2aproject

Remediation

Upgrade a2aproject a2a-java to 1.3.0.Final, which mitigates the issue through patch b478810a03b4a16841d36aca5c6e87d8f48fce67.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

  • Fix · CNA a2a-java (a2aproject) Fixed in 1.3.0.Final

Timeline

  1. 2026-10-27 Threatist record created from CVE-2026-117506
  2. 2026-10-27 Alias added: GHSA-w333-36mh-cfv5
  3. 2026-11-02 CISA SSVC decision points changed

References

Patch 3

Other 1

  • TI-2026-76905 Android A2A Java SDK forwards API keys across redirects CVSS 3.1HIGH 7.5
  • TI-2026-76904 A2A Java SDK default task store skips authorization on task reads CVSS 3.1HIGH 7.5
  • TI-2026-76847 Server-side request forgery in A2A Java SDK push notifications CVSS 3.1MEDIUM 5.8
  • TI-2026-81183 Resource consumption in a2aproject a2a-go REST SSE handler CVSS 4.0MEDIUM 6.9
  • TI-2026-61722 HTTP response splitting in a2aproject a2a-java CVSS 4.0MEDIUM 6.9
  • TI-2026-81185 Denial of service in a2aproject a2a-go Distributed Manager Cancel CVSS 4.0MEDIUM 6.9
See all 21 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences