What is CVE-2026-25802?

CVE-2026-25802 is a high-severity vulnerability in Quantumnous New-api, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2026-02-24.

How severe is CVE-2026-25802?

High severity. CVSS v3 base score is 7.6 out of 10.

XSS in Quantumnous New-api

CVE-2026-25802

New API is a large language mode (LLM) gateway and artificial intelligence (AI) asset management system. Prior to version 0.10.8-alpha.9, a potential unsafe operation occurs in component `MarkdownRenderer.jsx`, allowing for Cross-Site Scri…

Vulnerability class: XSS (Cross-Site Scripting)

EPSS: 0.000 (2.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.6 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:N/I:H/A:L.

Affected products

Quantumnous New-api — versions < 0.10.8-alpha.9

Weakness classification (CWE)

CWE-79 — Cross-site Scripting

References

https://github.com/QuantumNous/new-api/security/advisories/GHSA-299v-8pq9-5gjq (x_refsource_CONFIRM)
https://github.com/QuantumNous/new-api/commit/ab5456eb1049aa8a0f3e51f359907ec7fff38b4b (x_refsource_MISC)

Frequently asked questions

What is CVE-2026-25802?: CVE-2026-25802 is a high-severity vulnerability in Quantumnous New-api, classified under Cross-site Scripting. CVSS score: 7.6/10. Published 2026-02-24.
How severe is CVE-2026-25802?: High severity. CVSS v3 base score is 7.6 out of 10.