PT-2025-43144 · Librechat · Librechat

Published 2025-10-22 · Updated 2025-12-31 · CVE-2025-8848

Positive Technologies (AI Summary)

CVSS v2.0

5.5

Medium

Base vector

AV:N/AC:L/Au:S/C:P/I:P/A:N

Name of the Vulnerable Software and Affected Versions librechat version 0.7.9

Description A flaw exists in danny-avila/librechat version 0.7.9 that permits HTML injection through the Accept-Language header. A logged-in user sending an HTTP GET request with a specially crafted Accept-Language header can inject arbitrary HTML into the tag of the response. This could potentially lead to cross-site scripting (XSS) attacks.

Recommendations Update to a newer version that contains a fix for this vulnerability.

Exploit

Fix

XSS

Code Injection

Weakness Enumeration

CWE-79

CWE-94

Related Identifiers

BDU:2026-07575

CVE-2025-8848

Affected Products

Librechat

References · 5

• 🔥 https://huntr.com/bounties/a05ebc1f-882a-4adc-b178-d3cefa4b730e · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2025-8848 · Security Note
• https://bdu.fstec.ru/vul/2026-07575 · Security Note
• https://osv.dev/vulnerability/CVE-2025-8848 · Vendor Advisory
• https://twitter.com/pdnuclei_bot/status/2006274155700945076 · Twitter Post