PT-2026-53320 · Deepmyst · Mysti

Dem0000 · Published 2026-06-29 · Updated 2026-06-29 · CVE-2026-13591

Mitre

CVSS v3.1

5.0

Medium

Base vector

AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:L

A weakness has been identified in DeepMyst Mysti 0.4.0. Affected is the function isTrackedConversation of the file src/managers/ChannelBridge.ts of the component Contact Tracking. This manipulation of the argument channelType causes improper authorization. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is told to be difficult. The exploit has been made available to the public and could be used for attacks. Patch name: 9b4aff0f106db424aa45a35aa89dd0b8f2eb9a48. It is suggested to install a patch to address this issue.

Exploit

Fix

Improper Authorization

Incorrect Privilege Assignment

Weakness Enumeration

CWE-285

CWE-266

Related Identifiers

CVE-2026-13591

Affected Products

Mysti

References · 9

• 🔥 https://github.com/DeepMyst/Mysti/issues/42 · Exploit
• https://github.com/DeepMyst/Mysti/commit/9b4aff0f106db424aa45a35aa89dd0b8f2eb9a48 · Patch
• https://github.com/DeepMyst/Mysti/pull/43 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-13591 · Security Note
• https://vuldb.com/vuln/374594/cti · Note
• https://vuldb.com/cve/CVE-2026-13591 · Note
• https://vuldb.com/vuln/374594 · Note
• https://github.com/DeepMyst/Mysti · Note
• https://vuldb.com/submit/844480 · Note