CVE-2026-22665 (GCVE-0-2026-22665)
Vulnerability from cvelistv5 – Published: 2026-04-03 20:28 – Updated: 2026-11-08 14:01
VLAI
EPSS
VEX
Title
prompts.chat Identity Confusion via Case-Sensitive Username Handling
Summary
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.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-04-06 17:52 UTC
CWE
- CWE-178 - Improper Handling of Case Sensitivity
Assigner
VulnCheck
CNA
References
3 references
| URL | Tags |
|---|---|
| https://github.com/f/prompts.chat/pull/1098 | issue-trackingpatch |
| https://github.com/f/prompts.chat/commit/1464475d… | patch |
| https://www.vulncheck.com/advisories/prompts-chat… | third-party-advisory |
Impacted products
1 product
| Vendor | Product | Version | |
|---|---|---|---|
| f | prompts.chat |
Affected:
0 , < 1464475df2698fb7ccd0cdbc382b0750466f891d
(git)
|
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Browse all ATT&CK techniques and the vulnerabilities related to each.
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