# CERT-FR Warns of Multiple Curl Vulnerabilities

Published: 2026-10-14 · Severity: elevated
Canonical: https://vorant.io/reports/0b26d39a-301e-519b-ade5-059d757837d6/cert-fr-warns-of-multiple-curl-vulnerabilities

> CERT-FR advisory lists numerous Curl vulnerabilities before version 8.23.0 enabling remote code execution, denial of service, and data exposure.

CERT-FR has published an advisory covering a large batch of vulnerabilities affecting Curl versions prior to 8.23.0. The advisory enumerates over 20 CVEs disclosed by the Curl project on 14 October 2026, along with references to additional older CVEs (including CVE-2020-8177 and CVE-2026-12064). Collectively, these flaws can lead to remote code execution, remote denial of service, bypass of security policy, and confidentiality breaches, though the French CERT does not provide technical details on exploitation, instead directing readers to the Curl project's own per-CVE security bulletins.

No in-the-wild exploitation is mentioned in the advisory. As Curl is a widely embedded library used across countless applications, operating systems, and devices for data transfer, the breadth of affected systems is potentially large, making patch management a priority for any organization running affected versions. CERT-FR's only stated remediation is to update to a fixed Curl release per the vendor's documentation.

Defenders should inventory their systems and software dependencies for bundled or standalone Curl installations below version 8.23.0 and apply the vendor patches referenced in the bulletin as soon as feasible. Given the number of CVEs and the presence of RCE-class issues, this should be treated as a priority patching exercise even though no active exploitation has been reported.

## Mentioned in this report

- Vulnerabilities: CVE-2020-8177, CVE-2026-107928, CVE-2026-107929, CVE-2026-12064, CVE-2026-86409, CVE-2026-86410, CVE-2026-86411, CVE-2026-86412, CVE-2026-86413, CVE-2026-86414, CVE-2026-86415, CVE-2026-87861, CVE-2026-87862, CVE-2026-87863, CVE-2026-87864, CVE-2026-87865, CVE-2026-87866, CVE-2026-92386, CVE-2026-92387, CVE-2026-92388, CVE-2026-92389, CVE-2026-92390, CVE-2026-92391, CVE-2026-92392, CVE-2026-94265, CVE-2026-94266

Source reporting: https://www.cert.ssi.gouv.fr/avis/CERTFR-2026-AVI-1307

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