HighVulnerabilityLLM-specific

CVE-2026-6129: zhayujie chatgpt-on-wechat CowAgent missing authentication in Agent Mode Service

Source: NVD(opens in a new tab)
Identifier: CVE-2026-6129
Published: April 12, 2026
Record updated: October 9, 2026

Known exploitation: Not listed in the CISA Known Exploited Vulnerabilities catalog at the last check.
EPSS: 0.7%

Summary

CVE-2026-6129 affects an unknown function of the Agent Mode Service in zhayujie chatgpt-on-wechat CowAgent, up to version 2.0.4. Missing authentication allows remote manipulation, and a public exploit is available. The project was informed through an issue report but had not responded at the time of publication.

Mitigation

The source does not state a fix yet. Check the original advisory for updates.

Details

Scores and exploitation

CVSS score: 7.3(high)
CVSS vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
Attack vector: network
Attack complexity: low
Privileges required: none
User interaction: none
EPSS: 0.7%Estimated probability that this CVE is exploited in the next 30 days, from the FIRST Exploit Prediction Scoring System. Read on October 15, 2026.
Disclosure date: April 12, 2026

Weaknesses and techniques

Weakness (CWE): CWE-287
CWE-306
Attack pattern (CAPEC): CAPEC-114
CAPEC-115

Classification

Attack type: Other
Attack sophistication: Trivial
AI component targeted: Agent
Impact: Confidentiality,
Integrity,
Availability
Labels: security

How this record was produced

Summaries, mitigations and labels on this page are generated automatically from the source. The linked source is authoritative. The source gives this advisory a description and no title, so the title above is a headline generated from the source text.

Original source: https://nvd.nist.gov/vuln/detail/CVE-2026-6129

First tracked: April 12, 2026 at 08:07 PM ET, from NVD/CVE Database

Classifier: claude-haiku-5-5, prompt v4

Classifier confidence: 90% (self-assessed)

Summary

Mitigation

Related items