CVE-2026-94266

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. The curl tool exposes the same information using the command line option `--write-out '%{url_effective}'`. This credential leak can happen when curl retrieves credentials from a `.netrc` file.

Why is this CVE low priority?

Upstream defined this as low severity

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
curl	26.10 stonking	Fixed in 8.20.0-2ubuntu11.1
	26.04 LTS resolute	Fixed in 8.18.0-1ubuntu2.8
	24.04 LTS noble	Fixed in 8.5.0-2ubuntu10.16
	22.04 LTS jammy	Fixed in 7.81.0-1ubuntu1.30
	20.04 LTS focal	Fixed in 7.68.0-1ubuntu2.25+esm10
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected

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Patch details

For informational purposes only. We recommend not to cherry-pick updates. How can I get the fixes?

Package	Patch details
curl	Upstream: 7a6bd02

References

Related Ubuntu Security Notices (USN)

USN-8927-1
curl vulnerabilities
14 October 2026

USN-8932-1
curl vulnerabilities
14 October 2026

USN-8927-2
curl vulnerabilities
19 October 2026