{"cve":"CVE-2026-73603","nvd":{"published":"2026-08-13T12:17:24.617","modified":"2026-10-24T15:10:00.190","status":"Analyzed","description":"Flowise before 3.1.4 fails to validate chatflow visibility in the unauthenticated text-to-speech endpoint, allowing attackers to abuse private chatflow TTS credentials. Unauthenticated attackers can generate unlimited text-to-speech audio using stored OpenAI or ElevenLabs API keys by providing a valid chatflow UUID, incurring costs on the chatflow owner's account.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:L/SC:N/SI:N/SA:N","score":6.3},"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N","score":5.3},"cwes":["CWE-862"],"references":["https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-8gj2-2cvc-6xx7","https://www.vulncheck.com/advisories/flowise-before-credential-abuse-via-text-to-speech","https://github.com/FlowiseAI/Flowise/security/advisories/GHSA-8gj2-2cvc-6xx7"],"products":["flowiseai:flowise"],"source":"nvd","synced_at":"2026-10-24T16:53:35.584907681+00:00"},"epss":{"cve":"CVE-2026-73603","score":0.00329,"percentile":0.25849,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-8gj2-2cvc-6xx7","url":"https://osv.dev/vulnerability/GHSA-8gj2-2cvc-6xx7","summary":"Flowise: Unauthenticated Credential Abuse via Text-to-Speech Endpoint Allows Unauthorized Use of Private Chatflow TTS Credentials","modified":"2026-08-14T04:12:08.336300802Z","packages":[{"ecosystem":"npm","name":"flowise","purl":"pkg:npm/flowise","ranges":["<3.1.4"],"fixed":["3.1.4"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}