curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect

A flaw was found in curl. When an OAuth2 bearer token is used for an HTTPS transfer that redirects to a second URL, curl could unintentionally leak the token. This occurs if the second hostname has entries in the .netrc file, allowing the bearer token intended for the first host to be sent to the...

JLSEC-2026-1341

curl can be told to parse a .netrc file for credentials. If that file endsin a line with 4095 consecutive non-white space letters and no newline, curlwould first read past the end of the stack-based buffer, and if the readworks, write a zero byte beyond its boundary.This will in most cases cause ...

curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect

A flaw was found in curl. When an OAuth2 bearer token is used for an HTTPS transfer that redirects to a second URL, curl could unintentionally leak the token. This occurs if the second hostname has entries in the .netrc file, allowing the bearer token intended for the first host to be sent to the...

curl: curl: Information disclosure via OAuth2 bearer token leakage during HTTP(S) redirect

A flaw was found in curl. When an OAuth2 bearer token is used for an HTTPS transfer that redirects to a second URL, curl could unintentionally leak the token. This occurs if the second hostname has entries in the .netrc file, allowing the bearer token intended for the first host to be sent to the...

K000162914: libcurl vulnerability CVE-2026-8926

Security Advisory Description When asking curl to use a .netrc file to find credentials and at the same time specifying a URL with a username without a password, like https://[email protected]/, curl could wrongly get and use the password for another user set in the .netrc file for that host if su...

EulerOS 2.0 SP11 : curl (EulerOS-SA-2026-3063)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : When asked to both use a .netrc file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the...

EulerOS 2.0 SP11 : curl (EulerOS-SA-2026-3118)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : When asked to both use a .netrc file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the...

JLSEC-2026-1208 When asked to both use a `.netrc` file for credentials and to follow HTTP redirects, libcurl...

When asked to both use a .netrc file for credentials and to follow HTTP redirects, libcurl could leak the password used for the first host to the followed-to host under certain circumstances...

JLSEC-2026-1215 When asking curl to use a `.netrc` file to find credentials and at the same time specifying a URL...

When asking curl to use a .netrc file to find credentials and at the same time specifying a URL with a usernamewithout a password, like https://[email protected]/, curl could wrongly get and use the password for another user set in the .netrc file for that host if such a one exists and there is no...

EulerOS 2.0 SP15 : curl (EulerOS-SA-2026-2920)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A vulnerability, which was classified as problematic, has been found in cURL up to 8.19.0 Network Utility Software. Affected by this issue is some...

EulerOS 2.0 SP15 : curl (EulerOS-SA-2026-2879)

According to the versions of the curl packages installed, the EulerOS installation on the remote host is affected by the following vulnerabilities : A vulnerability, which was classified as problematic, has been found in cURL up to 8.19.0 Network Utility Software. Affected by this issue is some...

Fedora 44 : curl (2026-e691fbbfe7)

The remote Fedora 44 host has a package installed that is affected by multiple vulnerabilities as referenced in the FEDORA-2026-e691fbbfe7 advisory. - Fix trailing dot domain super cookie CVE-2026-8924 - Fix SSH improper host validation CVE-2026-9547 - Fix password leak with netrc and user in URL...

OESA-2026-3172 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: When asking curl to use a .netrc file to find credentials and at the same time specifying a URL with a usernamewithout a password, like...

OESA-2026-3171 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: When asking curl to use a .netrc file to find credentials and at the same time specifying a URL with a usernamewithout a password, like...

OESA-2026-3170 curl security update

cURL is a computer software project providing a library libcurl and command-line tool curl for transferring data using various protocols. Security Fixes: When asking curl to use a .netrc file to find credentials and at the same time specifying a URL with a usernamewithout a password, like...

yt-dlp: Arbitrary Command Injection when using the `--netrc-cmd` option

SummaryWhen yt-dlp's --netrc-cmd command-line option or netrccmd Python API parameter is used, an attacker could achieve arbitrary command injection on the user's system with a maliciously crafted URL. Impactyt-dlp maintainers assume the impact of this vulnerability to be high for anyone who uses...

PYSEC-2026-3432 yt-dlp: Arbitrary Command Injection when using the `--netrc-cmd` option

Summary When yt-dlp's --netrc-cmd command-line option or netrccmd Python API parameter is used, an attacker could achieve arbitrary command injection on the user's system with a maliciously crafted URL. Impact yt-dlp maintainers assume the impact of this vulnerability to be high for anyone who us...

SUSE CVE-2026-8926

When asking curl to use a .netrc file to find credentials and at the same time specifying a URL with a username without a password, like https://[email protected]/, curl could wrongly get and use the password for another user set in the .netrc file for that host if such a one exists and there is n...

libcurl 8.11.1 < 8.21.0 Netrc Wrong User Password Leak (CVE-2026-8926)

The version of libcurl installed on the remote host is 8.11.1 prior to 8.21.0. It is, therefore, affected by a credential leak vulnerability: - When asking curl to use a .netrc file to find credentials and at the same time specifying a URL with a username without a password, curl could wrongly ge...

USN-8525-1 curl vulnerabilities

Harry Sintonen discovered that curl incorrectly handled credentials when following HTTP redirects in conjunction with .netrc files. An attacker could possibly use this issue to obtain sensitive information. This issue only affected Ubuntu 14.04 LTS, Ubuntu 16.04 LTS, and Ubuntu 18.04 LTS...