CVEvulnerability
CVE-2026-22665
8.6 HIGH
Official page ↗
- Status
- Modified
- Published
- 2026-04-03
- Last modified
- 2026-07-24
- Assigner
- [email protected]
- CVSS 4.0 ([email protected])
- 8.6 HIGH — CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
- CVSS 3.1 ([email protected])
- 8.1 HIGH — CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
- Weaknesses
- CWE-178
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.
Affected configurations
• fka prompts.chat (< 2026-03-24)
Related
Weakness · CWE (1)
- CWE-178 Improper Handling of Case Sensitivity weakness
References
- https://github.com/f/prompts.chat/commit/1464475df2698fb7ccd0cdbc382b0750466f891d Patch
- https://github.com/f/prompts.chat/pull/1098 Exploit, Issue Tracking, Vendor Advisory
- https://www.vulncheck.com/advisories/prompts-chat-identity-confusion-via-case-sensitive-username-handling Third Party Advisory