Vulnerability 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.
CVSS Score
7.5
HIGH
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Related Weaknesses (CWE)
References
- https://curl.se/docs/CVE-2026-94266.html
- https://curl.se/docs/CVE-2026-94266.json
- https://hackerone.com/reports/4041053
- https://hackerone.com/reports/4041053
FAQ
What is CVE-2026-94266?
CVE-2026-94266 is a vulnerability with a CVSS score of 7.5 (HIGH). 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.
How severe is CVE-2026-94266?
CVE-2026-94266 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-94266?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.