CVE-2026-94266

high

Description

libcurl could accidentally return a URL for `curl_easy_getinfo()`'s `CURLINFO_EFFECTIVE_URL` option containing credentials, even though neither the URL provided to libcurl nor the redirected URL did.

References

https://hackerone.com/reports/4041053

https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-105355

https://curl.se/docs/CVE-2026-94266.json

https://curl.se/docs/CVE-2026-94266.html

Details

Source: Mitre, NVD

Published: 2026-10-20

Updated: 2026-10-30

Risk Information

CVSS v2

Base Score: 7.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:N/A:N

Severity: High

CVSS v3

Base Score: 7.5

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