No QUIC certificate pinning with GnuTLS

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2025-13034
StatePUBLISHED
Assignercurl
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-01-08 10:15:45 UTC
Updated2026-09-15 07:16:23 UTC
DescriptionWhen 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.

Risk And Classification

Primary CVSS: v3.1 5.9 MEDIUM from ADP

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

Problem Types: CWE-295 | CWE-295 Improper Certificate Validation | CWE-295 CWE-295 Improper Certificate Validation

VersionSourceTypeScoreSeverityVector
3.1ADPDECLARED5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N
3.1134c704f-9b21-4f2e-91b3-4a467353bcc0Secondary5.9MEDIUMCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
High
Availability
None

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Haxx Curl All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Curl Curl affected 8.8.0 8.14.2 semver Not specified
CNA Curl Curl affected 8.15.0 8.16.1 semver Not specified
CNA Curl Curl affected 8.17.0 8.18.0 semver Not specified
CNA Curl Curl affected 3210101088dfa3d6a125d213226b092f2f866722 3d91ca8cdb3b434226e743946d428b4dd3acf2c9 git Not specified
CNA Curl Curl affected 8.17.0 Not specified
CNA Curl Curl affected 8.16.0 Not specified
CNA Curl Curl affected 8.15.0 Not specified
CNA Curl Curl affected 8.14.1 Not specified
CNA Curl Curl affected 8.14.0 Not specified
CNA Curl Curl affected 8.13.0 Not specified
CNA Curl Curl affected 8.12.1 Not specified
CNA Curl Curl affected 8.12.0 Not specified
CNA Curl Curl affected 8.11.1 Not specified
CNA Curl Curl affected 8.11.0 Not specified
CNA Curl Curl affected 8.10.1 Not specified
CNA Curl Curl affected 8.10.0 Not specified
CNA Curl Curl affected 8.9.1 Not specified
CNA Curl Curl affected 8.9.0 Not specified
CNA Curl Curl affected 8.8.0 Not specified

References

ReferenceSourceLinkTags
curl.se/docs/CVE-2025-13034.json 2499f714-1537-4658-8207-48ae4bb9eae9 curl.se Vendor Advisory
curl.se/docs/CVE-2025-13034.html 2499f714-1537-4658-8207-48ae4bb9eae9 curl.se Patch, Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Vendor Comments And Credit

Discovery Credit

CNA: Stanislav Fort (Aisle Research) (en)

CNA: Daniel Stenberg (en)

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