CVE-2025-13034

mediumpriority · track · 0EPSS 0.002 · 15 %ileDEEUFRUS
grimoire priorityP3 · Track
Exploitable?
—
no known exploitation
Likely / severe?
0.24% (15th) EPSS
CVSS 5.9 · medium
Is it mine?
45 products
Check your exposure
Who says so?
5 sources
cnnvd · enisa_euvd · cert_bund · certfr

EPSS · scored 2026-10-27

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.

01

cvss

Technical severity, 0–10. One row per scoring source.

5.9
010

base score 0–10 · higher = more severe · hover a vector to decode

v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondary · ENISA EU
v3.15.9mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:Nsecondaryexploitability 2.2 · impact 3.6
v3.15.4mediumCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N/E:Usecondary · CVSS-BT (t0sche)
02

ssvc

A stakeholder decision — act, attend, or track — from exploitation and impact.

Trackcoordinatorcisa_ssvcUS
03

weaknesses

The CWE weakness classes this flaw belongs to.

CWE-295US
04

affected products (45)

Products and version ranges known to be affected.

showing 20 of 45
05

advisories (4)

Vendor and ecosystem advisories describing this.

  • WID-SEC-W-2026-0030cURL: Mehrere SchwachstellenDeutsch2026-01-06csaf · cert_bundDE

    Ein Angreifer kann mehrere Schwachstellen in cURL ausnutzen, um Sicherheitsvorkehrungen zu umgehen oder vertrauliche Informationen offenzulegen.

  • CERTFR-2026-AVI-1351Multiples vulnérabilités dans Oracle MySQLFrançais2026-10-21vendor · certfrFR
  • CERTFR-2026-AVI-1385Multiples vulnérabilités dans les produits VMwareFrançais2026-10-26vendor · certfrFR
  • CURL-CVE-2025-13034No QUIC certificate pinning with GnuTLS2026-01-07vendor · osvUS

    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.

06

also known as (3)

Other names and identifiers for this entity.

07

sources

Which sources assert this record, and when.

cnnvdenisa_euvdcert_bundcertfrosvNVDCVE.orgMITRE
published 2026-01-08modified 2026-09-15
08

references (8)

External citations — patches, advisories, analysis.

scry

Attackers weaponise vulnerabilities like this against internet-exposed services. See what is exposed on your perimeter with a free passive scan.

Free scan