CVE-2025-53094

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Source

https://cve.org/CVERecord?id=CVE-2025-53094

Import Source

https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-53094.json

JSON Data

https://api.osv.dev/v1/vulns/CVE-2025-53094

Aliases

GHSA-87j8-6f7g-h8wh

Published

2025-06-27T19:57:15.032Z

Modified

2026-04-02T12:52:41.897738Z

Severity

8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator

Summary

ESPAsyncWebServer Vulnerable to CRLF Injection in AsyncWebHeader.cpp

Details

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.

Database specific

{
    "cwe_ids": [
        "CWE-113",
        "CWE-93"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/53xxx/CVE-2025-53094.json",
    "cna_assigner": "GitHub_M"
}

References

Affected packages

Git / github.com/esp32async/espasyncwebserver

Affected ranges

Type

GIT

Repo

https://github.com/esp32async/espasyncwebserver

Events

Introduced

Last affected

f06bca1f7718e84dd48a1f6a883c02d871ace7c9

Database specific

{
    "versions": [
        {
            "introduced": "0"
        },
        {
            "last_affected": "3.7.8"
        }
    ]
}

Affected versions

v3.*

v3.6.0

v3.6.1

v3.6.2

v3.7.0

v3.7.1

v3.7.2

v3.7.3

v3.7.4

v3.7.5

v3.7.6

v3.7.7

v3.7.8

Database specific

source

"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2025-53094.json"