CVE-2026-113706a2aproject a2a-rs inmemory.rs information disclosure

Description

A vulnerability was identified in a2aproject a2a-rs up to 0.4.3. Impacted is an unknown function of the file a2a-server/src/task_store/inmemory.rs. The manipulation of the argument historyLength leads to information disclosure. The attack is possible to be carried out remotely. The identifier of the patch is 68f1b7e772ae5d6c9e581ac9b48bcddd10fe70eb. To fix this issue, it is recommended to deploy a patch.

Data: CVE.org, NVD, CISA KEV, FIRST EPSS, Ubuntu. Published as the sources state it, in English.

Affected products and versions

References and patches

• VDB-422868 | a2aproject a2a-rs inmemory.rs information disclosure vdb-entrytechnical-description
• VDB-422868 | CTI Indicators (IOB, IOC, TTP, IOA) signaturepermissions-required
• CVE-2026-113706 | CVE Analysis and Report third-party-advisory
• Submit #1015040 | a2aproject a2a-rs a2a-server-lf ≤ 0.4.3 CWE-200 third-party-advisory
• https://github.com/a2aproject/a2a-rs/pull/122 issue-trackingpatch
• https://github.com/a2aproject/a2a-rs/commit/68f1b7e772ae5d6c9e581ac9b48bcddd10fe70eb patch
• https://github.com/a2aproject/a2a-rs/ product