CVE-2026-13591
DeepMyst Mysti Contact Tracking ChannelBridge.ts _isTrackedConversation improper authorization
Vexday Risk Score
25Low
SSVC decision (CISA)
Attend
PoC available → attend closely
CVSS 2.3EPSS —KEV nãoPoC públicaNuclei —Metasploit —Patch referenciado
Lifecycle
29 Jun 2026Published on NVD
Recommendation: Plan a near-term fix — a public PoC already exists.
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.
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
Affected products
DeepMyst · Mystipublic PoCs found — 1
cve_referencegithub.com/DeepMyst/Mysti/issues/42unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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https://github.com/DeepMyst/Mysti/https://github.com/DeepMyst/Mysti/commit/9b4aff0f106db424aa45a35aa89dd0b8f2eb9a48https://github.com/DeepMyst/Mysti/issues/42https://github.com/DeepMyst/Mysti/pull/43https://vuldb.com/cve/CVE-2026-13591https://vuldb.com/submit/844480https://vuldb.com/vuln/374594https://vuldb.com/vuln/374594/cti