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Vulnerabilities

Vulnerability · CVE-2025-13034

When using option with libcurl or with the curl tool, curl should check the public key of the server certificate to verify the peer.

Published Jan 8, 2026 · catalog updated Oct 18, 2026 · When using option with

Open the advisory

Exploitation likelihood is not on this record for CVE-2025-13034. A missing EPSS score is not a low risk. Compare When using option with with the linked advisory before you change production.

Gaps on this record

  • The stored product name is a package slug. The name on this page is taken from the title (When using option with).
  • No vendor fix or required action is stored. Compare the linked advisory before you change production.
  • EPSS is missing. A missing score is not a low risk.
Severity
Medium5.9
Known exploitation
Not in CISA/VulnCheck KEV
EPSS
Awaiting synchronization with FIRST
Remediation
Advisory link
Affected products
Alpine:v3.21 curl · Alpine:v3.22 curl

When using option with libcurl or 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.

Are you affected?

Enter the version you run. The result uses only the ranges stored on this record.

The check returns affected, not affected, or incomplete. It does not guess a version that is missing from the record.

  • Alpine:v3.21 curl8.8.0 → 8.14.1-r3
  • Alpine:v3.22 curl8.8.0 → 8.14.1-r4

How to fix CVE-2025-13034

What to do

Three questions, each answered from this record only. Confirm the vendor advisory before you patch.

Should you patch?

Exploitation likelihood is not on this record for CVE-2025-13034. A missing EPSS score is not a low risk. Compare When using option with with the linked advisory before you change production.

Which versions are affected?

Compare what you have installed with 8.8.0 → 8.14.1-r3, 8.8.0 → 8.14.1-r4. Compare the installed version with the linked vendor advisory before you change production.

What should an analyst verify?

No weakness class is stored. EPSS is not on this record yet. There is no CISA KEV listing. No Exploit-DB or Metasploit reference is linked. Use the source links for the original advisory.

Code

The project this record applies to. Exploit listings stay in References.

No public source repository is identified for this product.

Timeline

Detection, updates, and resolution for this record.

  1. Jan 8, 2026 · OpenSSF OSV / OSV Scanner

    Detected

    When using option with libcurl or 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 th

  2. Oct 18, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    curl fixed in 8.14.1-r3; curl fixed in 8.14.1-r4

  3. Oct 18, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    curl fixed in 8.14.1-r3

  4. Oct 18, 2026 · OpenSSF OSV / OSV Scanner

    Fix available

    curl fixed in 8.14.1-r4

  5. Oct 18, 2026 · OpenSSF OSV / OSV Scanner

    Updated

    When using option with libcurl or 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 th

Sources

  • CVE.orgVulnerability recordCVE-2025-13034

    Official CVE identifier

    cve.org
  • OpenSSF OSV / OSV ScannerPackage advisoryALPINE-CVE-2025-13034
    osv.dev
  • Trivy Vulnerability DBPackage advisoryALPINE-CVE-2025-13034

    When using option with libcurl or 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

    osv.dev

References

Freshness

Last verified in this catalog Oct 18, 2026. Significant claims (KEV, EPSS, CVSS, affected ranges) come from the source rows above — open the original publisher for the authoritative advisory.