HTTP Response Splitting Affecting espressif/arduino-esp32 package, versions [0,]


Severity

Recommended
0.0
critical
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

Exploit Maturity
Proof of Concept
EPSS
0.05% (15th percentile)

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  • Snyk IDSNYK-UNMANAGED-ESPRESSIFARDUINOESP32-10562148
  • published30 Jun 2025
  • disclosed26 Jun 2025
  • creditJonathan Leitschuh

Introduced: 26 Jun 2025

NewCVE-2025-53007  (opens in a new tab)
CWE-113  (opens in a new tab)

How to fix?

A fix was pushed into the master branch but not yet published.

Overview

Affected versions of this package are vulnerable to HTTP Response Splitting via the sendHeader function. An attacker can inject arbitrary HTTP headers or manipulate the HTTP response structure by supplying specially crafted input containing carriage return or line feed characters.

CVSS Base Scores

version 4.0
version 3.1