UBUNTU-CVE-2025-13034

Advisory lineage Upstream: 1 Downstream: 1
Upstream
CVE-2025-13034
Downstream
USN-8062-1
Published: 06 Jan 2026, 07:00
Last modified:22 Apr 2026, 15:31

Vulnerability Summary

Overall Risk (default)
low
24/100
CVSS Score
5.9 MEDIUM
3.1 (osv_ubuntu)
EPSS Score
No data
KEV
Not listed
Ransomware
No reports
Public exploits
None found
Dark Web
Not detected

Timeline

06 Jan 2026, 07:00
Published
Vulnerability first disclosed
22 Apr 2026, 15:31
Last Modified
Vulnerability information updated

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.

CVSS Metrics

  • v3.1•MEDIUM•Score: 5.9CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Affected Systems

  • ubuntu•curl

    all | < 8.14.1-2ubuntu1.1

References (4)