CVE-2025-5025

  1. OpenCVE
  2. Vulnerabilities (CVE)
  3. CVE-2025-5025
libcurl supports *pinning* of the server certificate public key for HTTPS transfers. Due to an omission, this check is not performed when connecting with QUIC for HTTP/3, when the TLS backend is wolfSSL. Documentation says the option works with wolfSSL, failing to specify that it does not for QUIC and HTTP/3. Since pinning makes the transfer succeed if the pin is fine, users could unwittingly connect to an impostor server without noticing.

4.8 /10

CVSS v3 : MEDIUM

V3 Legend

Vector :

Exploitability : 2.2 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity HIGH

Privileges Required NONE

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References
Link Resource
https://curl.se/docs/CVE-2025-5025.html Vendor Advisory
https://curl.se/docs/CVE-2025-5025.json Vendor Advisory
https://hackerone.com/reports/3153497 Exploit Issue Tracking Third Party Advisory
http://www.openwall.com/lists/oss-security/2025/05/28/5 Mailing List Third Party Advisory
Configurations

Configuration 1 (hide)

cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
History

30 Jul 2025, 19:41

Type Values Removed Values Added
CPE cpe:2.3:a:haxx:curl:*:*:*:*:*:*:*:*
CWE CWE-295
References () https://curl.se/docs/CVE-2025-5025.html - () https://curl.se/docs/CVE-2025-5025.html - Vendor Advisory
References () https://curl.se/docs/CVE-2025-5025.json - () https://curl.se/docs/CVE-2025-5025.json - Vendor Advisory
References () https://hackerone.com/reports/3153497 - () https://hackerone.com/reports/3153497 - Exploit, Issue Tracking, Third Party Advisory
References () http://www.openwall.com/lists/oss-security/2025/05/28/5 - () http://www.openwall.com/lists/oss-security/2025/05/28/5 - Mailing List, Third Party Advisory
First Time Haxx
Haxx curl

30 May 2025, 17:15

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown 		v2 : unknown
v3 : 4.8

28 May 2025, 15:01

Type Values Removed Values Added
Summary
  • (es) libcurl admite la fijación de la clave pública del certificado del servidor para transferencias HTTPS. Debido a una omisión, esta comprobación no se realiza al conectar con QUIC para HTTP/3, cuando el backend TLS es wolfSSL. La documentación indica que la opción funciona con wolfSSL, pero no especifica que no funciona para QUIC ni HTTP/3. Dado que la fijación permite que la transferencia se realice correctamente si la fijación es correcta, los usuarios podrían conectarse sin darse cuenta a un servidor falso.

28 May 2025, 08:15

Type Values Removed Values Added
References
  • () http://www.openwall.com/lists/oss-security/2025/05/28/5 -

28 May 2025, 07:15

Type Values Removed Values Added
New CVE
Information

Published : 2025-05-28 07:15

Updated : 2025-07-30 19:41

NVD link : CVE-2025-5025

Mitre link : CVE-2025-5025

CVE.ORG link : CVE-2025-5025

JSON object : View

Products Affected

haxx

  • curl
CWE
CWE-295

Improper Certificate Validation