Description
99AI through 4.3.0 contains an insecure direct object reference vulnerability that allows unauthenticated attackers to read other users' chat messages because querySingleChat lacks an owner check. Attackers can send a fingerprint header to obtain a visitor JWT and iterate sequential chatId values to retrieve other users' message content and task data.
Published: 2026-10-16
Score: 6.9 Medium
EPSS: < 1% Very Low
KEV: No
AI Analysis

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Remediation

No solution or workaround provided in the CVE record.

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Tracking

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Advisories

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History

Mon, 26 Oct 2026 20:45:00 +0100

Type Values Removed Values Added
First Time appeared Vastxie
Vastxie 99ai
Vendors & Products Vastxie
Vastxie 99ai

Sat, 17 Oct 2026 15:30:00 +0200

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Fri, 16 Oct 2026 19:45:00 +0200

Type Values Removed Values Added
Description 99AI through 4.3.0 contains an insecure direct object reference vulnerability that allows unauthenticated attackers to read other users' chat messages because querySingleChat lacks an owner check. Attackers can send a fingerprint header to obtain a visitor JWT and iterate sequential chatId values to retrieve other users' message content and task data.
Title 99AI through 4.3.0 IDOR via /api/chatLog/querySingleChat Chat Message Disclosure
Weaknesses CWE-639
References
Metrics cvssV3_1

{'score': 5.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published:

Updated: 2026-10-16T18:20:01.823Z

Reserved: 2026-10-16T14:31:22.682Z

Link: CVE-2026-111707

cve-icon Vulnrichment

Updated: 2026-10-16T18:19:55.628Z

cve-icon NVD

Status : Deferred

Published: 2026-10-16T18:17:54.803

Modified: 2026-10-16T19:17:05.233

Link: CVE-2026-111707

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-10-26T20:26:50Z

Weaknesses
  • CWE-639

    Authorization Bypass Through User-Controlled Key