CVE-2026-84857

sigoden aichat API Endpoint serve.rs memory allocation

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.

Affected

sigoden · aichat

CVSS v4.0 VULDB

5.5 MEDIUMCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/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

CVSS v3.1 VULDB

5.3 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

CVSS v2.0 VULDB

5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P

EPSS

0.37% chance of exploitation in the next 30 days, 30th percentile

Published

2026-09-02

Proof-of-concept exploits (1)

• outlookgp/CVE/tree/main/AIChat_Serve_Request_Body_DoS_Report

References

• CVE Record
• NVD entry

Related

• CVE-2026-78250
• CVE-2026-84427
• CVE-2026-84833
• CVE-2026-84885
• CVE-2026-84887
• CVE-2026-84888