CVE-2025-5025

No QUIC certificate pinning with wolfSSL

Description

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

CVSS

Severity: Medium

CVSS 3.1 •

EPSS 0.01%

Affected: curl curl

References

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

Frequently Asked Questions

What is the severity of CVE-2025-5025?: CVE-2025-5025 has been scored as a medium severity vulnerability.
How to fix CVE-2025-5025?: To fix CVE-2025-5025, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2025-5025 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2025-5025 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2025-5025?: CVE-2025-5025 affects curl curl.

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