Information disclosure in A2aproject A2a-Rs
CVE-2026-113705
A vulnerability was determined in a2aproject a2a-rs up to 0.4.3. This issue affects some unknown processing of the file a2a-server/src/error.rs. Executing a manipulation can lead to information exposure through error message. The attack can be executed remotely. This patch is called 713b943af94ab2d521d483b841618b97a2e78a4d. A patch should be applied to remediate this issue.
Vulnerability class: Information Disclosure
Published · last modified .
CVSS v3 metric
CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.
EPSS exploit prediction
No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.
Affected products
- A2aproject A2a-Rs — versions 0.4.0, 0.4.1, 0.4.2
Weakness classification (CWE)
References
- vuldb.com/vuln/422867 (vdb-entry)
- vuldb.com/vuln/422867/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-113705 (third-party-advisory)
- vuldb.com/submit/1014888 (third-party-advisory)
- github.com/a2aproject/a2a-rs/pull/127 (issue-tracking, patch)
- github.com/a2aproject/a2a-rs/commit/713b943af94ab2d521d483b841618b97a2e78a4d (patch)
- github.com/a2aproject/a2a-rs/ (product)
Frequently asked questions
- What is CVE-2026-113705?
- CVE-2026-113705 is a medium-severity vulnerability in A2aproject A2a-Rs, classified under Information Disclosure. CVSS score: 5.3/10. Published 2026-10-20.
- How severe is CVE-2026-113705?
- Medium severity. CVSS v3 base score is 5.3 out of 10.