CVE-2026-22665: high-severity vulnerability in f prompts.chat
prompts.chat Identity Confusion via Case-Sensitive Username Handling
Published · Updated
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21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 8.6epss 0.3%
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.
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
Affected products
f · prompts.chatRelated CVEs — f prompts.chat
In the same product, most dangerous first.
CVE-2026-22661HIGHprompts.chat Path Traversal via Skill File HandlingEPSS 0.4%CVE-2026-22664HIGHprompts.chat SSRF via Fal.ai Media Status PollingEPSS 0.3%CVE-2026-22663HIGHprompts.chat Authorization Bypass Information DisclosureEPSS 0.3%CVE-2026-22662MEDIUMprompts.chat Blind SSRF via media-generateEPSS 0.2%