CVE-2025-13034
5.9
MEDIUM
CVSS 3.1
EPSS 0.01%
Description
When using `CURLOPT_PINNEDPUBLICKEY` option with libcurl or `--pinnedpubkey` with the curl tool,curl should check the public key of the server certificate to verify the peer. This check was skipped in a certain condition that would then make curl allow the connection without performing the proper check, thus not noticing a possible impostor. To skip this check, the connection had to be done with QUIC with ngtcp2 built to use GnuTLS and the user had to explicitly disable the standard certificate verification.
How to fix CVE-2025-13034
To remediate CVE-2025-13034, upgrade the affected package to a fixed version below.
- —upgrade to 0 or later
- —upgrade to 8.14.1-2+deb13u3 or later
Is CVE-2025-13034 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 0
- from 0, < 8.14.1-2+deb13u3
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.9 | CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N |