CVE-2026-113707: Race Condition in a2aproject a2a-rs
Description
CVE-2026-113707 is a medium severity race condition vulnerability in the a2aproject a2a-rs software, specifically in the InMemoryTaskStore::update function within a2a-server/src/task_store/inmemory.rs. It affects versions 0.4.0 through 0.4.4. The flaw can be exploited remotely and may lead to inconsistent or unintended behavior due to concurrent access. A patch identified by commit 7050c7d329238539424ee46440e23b91c4825bee is available to fix this issue.
CVSS v4.0
Score 5.3medium
Affected software
a2aproject
a2a-rs
pkg:cargo/github/a2aproject/a2a-rscpe:2.3:a:a2aproject:a2a-rs:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a race condition in the InMemoryTaskStore::update function of a2aproject a2a-rs up to version 0.4.4. The race condition arises from improper handling of concurrent operations, potentially allowing an attacker to manipulate the task store state remotely. The issue has been addressed in a patch identified by commit 7050c7d329238539424ee46440e23b91c4825bee.
Potential Impact
The vulnerability allows remote attackers to exploit a race condition, which may lead to inconsistent or unintended state changes in the task store. The CVSS 4.0 score of 5.3 indicates a medium impact with network attack vector, low attack complexity, no user interaction, and limited privileges required. There is no indication of known exploits in the wild.
Mitigation Recommendations
A patch is available for this vulnerability as identified by commit 7050c7d329238539424ee46440e23b91c4825bee. It is recommended to apply this patch promptly to remediate the race condition. No alternative mitigations or vendor advisory indicating no action required were provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-10-20T15:57:23.915Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad7fdf82cdf04f65672309e
Added to database: 10/20/2026, 23:49:12 UTC
Last enriched: 10/21/2026, 00:03:38 UTC
Last updated: 10/21/2026, 00:08:11 UTC
Views: 6
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