Which versions of Shy2593666979 AgentChat are affected by CVE-2026-3693?

CVE-2026-3693 affects AgentChat versions up to 2.3.0 and poses a significant risk to organizations using this software.

How to fix or mitigate CVE-2026-3693?

Within 24 hours: Inventory all systems running AgentChat versions up to 2.3.0 and assess exposure. Within 7 days: Implement network segmentation to isolate affected systems and deploy compensating controls. Within 30 days: Monitor vendor communications for patch availability and develop upgrade testing procedures.

Shy2593666979 AgentChat CVE-2026-3693

Q: What is the CVSS score of CVE-2026-3693?

CVE-2026-3693 has a CVSS 4.0 base score of 5.5 (Medium). CVSS vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X. EPSS exploitation probability: 0.1%.

MEDIUM

Improper Control of Resource Identifiers ('Resource Injection') (CWE-99)

2026-03-08 cna@vuldb.com

Information Disclosure

5.5

CVSS 4.0 · NVD

Severity by source

NVD PRIMARY

5.5 MEDIUM

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Primary rating from NVD · only source for this CVE.

CVSS VectorNVD

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Lifecycle Timeline

CVSS changed

Apr 29, 2026 - 01:11 NVD

6.9 (MEDIUM) 5.5 (MEDIUM)

Severity Changed

Apr 22, 2026 - 21:37 NVD

HIGH MEDIUM

CVSS changed

Apr 22, 2026 - 21:37 NVD

7.3 (HIGH) 6.9 (MEDIUM)

Analysis Generated

Mar 12, 2026 - 21:55 vuln.today

CVE Published

Mar 08, 2026 - 01:15 nvd

HIGH 7.3

DescriptionCVE.org

A flaw has been found in Shy2593666979 AgentChat up to 2.3.0. This issue affects the function get_user_info/update_user_info of the file /src/backend/agentchat/api/v1/user.py of the component User Endpoint. This manipulation of the argument user_id causes improper control of resource identifiers. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

AnalysisAI

Improper resource identifier validation in Shy2593666979 AgentChat versions up to 2.3.0 allows unauthenticated remote attackers to manipulate the user_id parameter in the user endpoint, potentially gaining unauthorized access to or modifying user data. Public exploit code exists for this vulnerability, and the vendor has not responded to disclosure attempts. No patch is currently available.

Technical ContextAI

affects A flaw has been found in Shy2593666979 AgentChat. has been found in Shy2593666979 AgentChat up to 2.3.0. This issue affects the function get_user_info/update_user_info of the file /src/backend/agentchat/api/v1/user.py of the component User Endpoint. This manipulation of the argument user_id causes improper control of resource identifiers. It is possible to initiate the attack remotely. The exploit has been published and may be used. The vendor was contacted early about this disclosure but did not respond in any way.