CVE-2025-5025

No QUIC certificate pinning with wolfSSL

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.

Affected

curl

CVSS v3.1 CNA

4.8 MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

EPSS

0.29% chance of exploitation in the next 30 days, 21st percentile

Published

2025-05-28

Updated

2025-05-30

Proof-of-concept exploits (1)

• KiPhuong/cve-2025-50250★ · 2025-07-22

Security advisories

• https://curl.se/docs/CVE-2025-5025.html
• https://curl.se/docs/CVE-2025-5025.json
• http://www.openwall.com/lists/oss-security/2025/05/28/5
• https://hackerone.com/reports/3153497

References

• CVE Record
• NVD entry

Related

• CVE-2016-6210
• CVE-2024-3552