🛡️ CVE-2025-53094
⚪ Unknown ✅ No Known Exploit CWE-93 NVD
N/A
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

ESPAsyncWebServer is an asynchronous HTTP and WebSocket server library for ESP32, ESP8266, RP2040 and RP2350. In versions up to and including 3.7.8, a CRLF (Carriage Return Line Feed) injection vulnerability exists in the construction and output of HTTP headers within `AsyncWebHeader.cpp`. Unsanitized input allows attackers to inject CR (`\r`) or LF (`\n`) characters into header names or values, leading to arbitrary header or response manipulation. Manipulation of HTTP headers and responses can enable a wide range of attacks, making the severity of this vulnerability high. A fix is available at pull request 211 and is expected to be part of version 3.7.9.

Details

Severity Unknown
CVSS Score N/A
CVSS Vector N/A
CWE CWE-93
Public Exploit ✅ No
Source NVD
Published 2025-06-27
Updated 2026-06-02
Modified 2026-04-15
Fix URL N/A

Affected Packages

Software From version Fixed in
unknown

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