a2aproject a2a-go up to 2.4.0 Push Notification a2asrv/agentexec.go CreateExecutor information exposure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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5.1$0-$5k2.02

Summaryinfo

A vulnerability was found in a2aproject a2a-go up to 2.4.0. It has been rated as problematic. This impacts the function CreateExecutor of the file a2asrv/agentexec.go of the component Push Notification Handler. This manipulation causes information exposure. This vulnerability is handled as CVE-2026-116478. The attack can be initiated remotely. There is not any exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in a2aproject a2a-go up to 2.4.0. It has been declared as problematic. Affected by this vulnerability is the function CreateExecutor of the file a2asrv/agentexec.go of the component Push Notification Handler. The manipulation with an unknown input leads to a information exposure vulnerability. The CWE definition for the vulnerability is CWE-209. The product generates an error message that includes sensitive information about its environment, users, or associated data. As an impact it is known to affect confidentiality.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-116478. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 2.5.0 eliminates this vulnerability. The upgrade is hosted for download at github.com. Applying the patch f4d588216b0c9520e94d571bab725c38ce23064c is able to eliminate this problem. The bugfix is ready for download at github.com. The best possible mitigation is suggested to be upgrading to the latest version.

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Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.1

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Information exposure
CWE: CWE-209 / CWE-200 / CWE-284
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined
Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: a2a-go 2.5.0
Patch: f4d588216b0c9520e94d571bab725c38ce23064c

Timelineinfo

10/26/2026 Advisory disclosed
10/26/2026 +0 days VulDB entry created
10/26/2026 +0 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: 393
Status: Confirmed

CVE: CVE-2026-116478 (🔒)
GCVE (CVE): GCVE-0-2026-116478
GCVE (VulDB): GCVE-100-426391

Entryinfo

Created: 10/26/2026 12:05
Changes: 10/26/2026 12:05 (60)
Complete: 🔍
Submitter: colorfullbz
Cache ID: 216::103

Submitinfo

Accepted

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