CVE-2026-113705: Information Exposure Through Error Message in a2aproject a2a-rs
Description
CVE-2026-113705 is a medium severity vulnerability in a2aproject a2a-rs versions 0.4.0 through 0.4.3. It involves information exposure through error messages in the file a2a-server/src/error.rs. The vulnerability can be exploited remotely without authentication. A patch identified by commit 713b943af94ab2d521d483b841618b97a2e78a4d is available to remediate this issue.
CVSS v4.0
Score 6.9medium
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
The vulnerability in a2aproject a2a-rs up to version 0.4.3 allows remote attackers to cause information exposure via error messages generated by the processing in a2a-server/src/error.rs. This issue could leak sensitive information that might aid further attacks. The vulnerability has a CVSS 4.0 base score of 6.9, indicating a medium severity level. The vendor has issued a patch (commit 713b943af94ab2d521d483b841618b97a2e78a4d) to fix the problem.
Potential Impact
Successful exploitation can lead to unauthorized disclosure of information through error messages. This may assist attackers in gaining insights into the system or application internals, potentially facilitating further attacks. The vulnerability is remotely exploitable without privileges or user interaction.
Mitigation Recommendations
Apply the official patch identified by commit 713b943af94ab2d521d483b841618b97a2e78a4d to remediate the vulnerability. No other mitigation guidance is provided or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-10-20T15:57:15.561Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6ad7f3642cdf04f6566ee865
Added to database: 10/20/2026, 23:04:04 UTC
Last enriched: 10/20/2026, 23:18:36 UTC
Last updated: 10/20/2026, 23:18:36 UTC
Views: 6
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