arduino-esp32 is an Arduino core for the ESP32, ESP32-S2, ESP32-S3, ESP32-C3, ESP32-C6 and ESP32-H2 microcontrollers. Prior to 3.3.8, the WebServer Digest authentication implementation in arduino-esp32 computes the authentication hash using the URI field from the client's Authorization header, without verifying that it matches the actual requested URI. This allows an attacker who possesses any valid digest response (computed for URI-A) to authenticate requests to a completely different protected URI (URI-B), bypassing per-resource access control. This vulnerability is fixed in 3.3.8.
References
| Link | Resource |
|---|---|
| https://github.com/espressif/arduino-esp32/security/advisories/GHSA-28hv-fwm3-rpcq | Exploit Vendor Advisory |
Configurations
History
15 May 2026, 15:54
| Type | Values Removed | Values Added |
|---|---|---|
| CWE | NVD-CWE-noinfo | |
| References | () https://github.com/espressif/arduino-esp32/security/advisories/GHSA-28hv-fwm3-rpcq - Exploit, Vendor Advisory | |
| CPE | cpe:2.3:a:espressif:arduino-esp32:*:-:*:*:*:*:*:* | |
| First Time |
Espressif arduino-esp32
Espressif |
12 May 2026, 22:16
| Type | Values Removed | Values Added |
|---|---|---|
| New CVE |
Information
Published : 2026-05-12 22:16
Updated : 2026-05-15 15:54
NVD link : CVE-2026-42855
Mitre link : CVE-2026-42855
CVE.ORG link : CVE-2026-42855
JSON object : View
Products Affected
espressif
- arduino-esp32
CWE