CVE-2026-22665
Modified Modified - Updated After Analysis
Identity Confusion in prompts.chat Allows Account Impersonation

Publication date: 2026-04-03

Last updated on: 2026-05-26

Assigner: VulnCheck

Description
prompts.chat prior to commit 1464475, contains an identity confusion vulnerability due to inconsistent case-sensitive and case-insensitive handling of usernames across write and read paths, allowing attackers to create case-variant usernames that bypass uniqueness checks. Attackers can exploit non-deterministic username resolution to impersonate victim accounts, replace profile content on canonical URLs, and inject attacker-controlled metadata and content across the platform.
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Meta Information
Published
2026-04-03
Last Modified
2026-05-26
Generated
2026-06-16
AI Q&A
2026-04-04
EPSS Evaluated
2026-06-15
NVD
CVE-2026-22665
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
fka prompts.chat to 2026-03-24 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-178 The product does not properly account for differences in case sensitivity when accessing or determining the properties of a resource, leading to inconsistent results.
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Executive Summary

This vulnerability exists in prompts.chat prior to commit 1464475 and is an identity confusion issue caused by inconsistent handling of usernames. Specifically, the system treats usernames differently when writing (case-sensitive) versus reading (case-insensitive), allowing attackers to create usernames that differ only in letter case. This bypasses uniqueness checks.

As a result, attackers can exploit this inconsistency to impersonate other users by resolving usernames in a non-deterministic way, replace profile content on canonical URLs, and inject attacker-controlled metadata and content across the platform.

Impact Analysis

The vulnerability can have serious impacts including unauthorized impersonation of victim accounts, which can lead to trust and security breaches.

  • Attackers can replace profile content on official URLs, misleading other users.
  • Attackers can inject malicious or attacker-controlled metadata and content across the platform, potentially leading to misinformation or further exploitation.
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