What’s Vulnerable › Vulnerabilities

CVE-2026-116478: a2aproject a2a-go Push Notification agentexec.go CreateExecutor information exposure

• Severity: medium (CVSS 5.3 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-26 · updated 2026-10-27
• Weakness: CWE-200

Description

A vulnerability was detected in a2aproject a2a-go up to 2.4.0. This affects the function CreateExecutor of the file a2asrv/agentexec.go of the component Push Notification Handler. The manipulation results in information exposure through error message. It is possible to launch the attack remotely. Upgrading to version 2.5.0 mitigates this issue. The patch is identified as f4d588216b0c9520e94d571bab725c38ce23064c. It is recommended to upgrade the affected component.

Affected products

• a2aproject a2a-go: 2.0, 2.1, 2.2, 2.3, 2.4.0

References

• https://github.com/a2aproject/a2a-go/
• https://github.com/a2aproject/a2a-go/commit/f4d588216b0c9520e94d571bab725c38ce23064c
• https://github.com/a2aproject/a2a-go/pull/393
• https://github.com/a2aproject/a2a-go/releases/tag/v2.5.0
• https://vuldb.com/cve/CVE-2026-116478
• https://vuldb.com/submit/1014887
• https://vuldb.com/vuln/426391
• https://vuldb.com/vuln/426391/cti

Get alerted when CVE-2026-116478 or the next vulnerability affects your stack