CVE-2026-84857

MEDIUM 5.3

sigoden aichat API Endpoint serve.rs memory allocation

CVSS Score

5.3

EPSS Score

0.0%

EPSS Percentile

0th

A flaw has been found in sigoden aichat up to 0.30.4. This affects an unknown function of the file src/serve.rs of the component API Endpoint. This manipulation causes uncontrolled memory allocation. The attack can be initiated 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.

CWE	CWE-789 CWE-400
Vendor	sigoden
Product	aichat
Published	Sep 2, 2026
Last Updated	Sep 3, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R

Attack Vector

Attack Complexity

Privileges Required

User Interaction

Scope

Confidentiality

Integrity

Availability

Affected Versions

sigoden / aichat

0.30.0 0.30.1 0.30.2 0.30.3 0.30.4

References

NVD ↗ CVE.org ↗ EPSS Data ↗

vuldb.com: https://vuldb.com/vuln/398132 vuldb.com: https://vuldb.com/vuln/398132/cti vuldb.com: https://vuldb.com/cve/CVE-2026-84857 vuldb.com: https://vuldb.com/submit/886265 github.com: https://github.com/outlookgp/CVE/tree/main/AIChat_Serve_Request_Body_DoS_Report

Credits

🔍 outlookgp (VulDB User) VulDB CNA Team