What is CVE-2026-22665?

CVE-2026-22665 is a high-severity vulnerability in F Prompts.chat, classified under Improper Handling of Case Sensitivity. CVSS score: 8.1/10. Published 2026-04-03.

How severe is CVE-2026-22665?

High severity. CVSS v3 base score is 8.1 out of 10.

Vulnerability in F Prompts.chat

CVE-2026-22665

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 usernam…

EPSS: 0.000 (11.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 8.1 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N.

Affected products

F Prompts.chat — versions 0
Fka Prompts.chat

Weakness classification (CWE)

CWE-178 — Improper Handling of Case Sensitivity

References

disclosure@vulncheck.com (issue-tracking, Exploit, Issue Tracking, Vendor Advisory)
disclosure@vulncheck.com (Patch, patch)
disclosure@vulncheck.com (Third Party Advisory, third-party-advisory)

Frequently asked questions

What is CVE-2026-22665?: CVE-2026-22665 is a high-severity vulnerability in F Prompts.chat, classified under Improper Handling of Case Sensitivity. CVSS score: 8.1/10. Published 2026-04-03.
How severe is CVE-2026-22665?: High severity. CVSS v3 base score is 8.1 out of 10.