Important: Red Hat Security Advisory: curl security update

An update for curl is now available for Red Hat Enterprise Linux 10. Red Hat Product Security has rated this update as having a security impact of Important. A Common Vulnerability Scoring System CVSS base score, which gives a detailed severity rating, is available for each vulnerability from the...

PT-2026-82633

When curl is instructed to get content using the metalink feature, and a user name and password are used to download the metalink XML file, those same credentials are then subsequently passed on to each of the servers from which curl will download or try to download the contents from. Often...

PT-2026-82636

A user can tell curl = 7.20.0 and = 7.78.0 to require a successful upgrade to TLS when speaking to an IMAP, POP3 or FTP server --ssl-reqd on the command line orCURLOPT USE SSL set to CURLUSESSL CONTROL or CURLUSESSL ALL withlibcurl. This requirement could be bypassed if the server would return a...

PT-2026-82632

When curl is instructed to download content using the metalink feature, thecontents is verified against a hash provided in the metalink XML file.The metalink XML file points out to the client how to get the same contentfrom a set of different URLs, potentially hosted by different servers and...

PT-2026-82638

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 ...

PT-2026-82637

When curl = 7.20.0 and = 7.78.0 connects to an IMAP or POP3 server to retrieve data using STARTTLS to upgrade to TLS security, the server can respond and send back multiple responses at once that curl caches. curl would then upgrade to TLS but not flush the in-queue of cached responses but instea...

ALSA-2026:55439 Important: curl security update

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Security Fixes: curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication CVE-2026-1965 curl: curl:...

curl security update

8.12.1-4.4 - fix proxy environment variable change detection CVE-2026-8927 8.12.1-4.el102.3 - fix HTTP Negotiate connection reuse auth bypass CVE-2026-1965 - fix OAuth2 bearer token leak via redirect and netrc CVE-2026-3783 - fix proxy connection reuse with wrong credentials CVE-2026-3784...

ALSA-2026:55432 Important: curl security update

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Security Fixes: curl: Information disclosure due to uncleared proxy authentication state CVE-2026-8927 For more details about the security...

curl security update

8.12.1-4.4 - fix proxy environment variable change detection CVE-2026-8927 8.12.1-4.el102.3 - fix HTTP Negotiate connection reuse auth bypass CVE-2026-1965 - fix OAuth2 bearer token leak via redirect and netrc CVE-2026-3783 - fix proxy connection reuse with wrong credentials CVE-2026-3784...

curl security update

7.76.1-40.el98.5 - fix missing %patch macros for Patch46 and Patch47 7.76.1-40.el98.4 - fix HTTP Negotiate connection reuse auth bypass CVE-2026-1965 - fix OAuth2 bearer token leak via redirect and netrc CVE-2026-3783 - tests: disable flaky test 1206 on x8664 FTP PORT timeout under valgrind...

Unity Linux 20.1050e / 20.1060e / 20.1070e Security Update: mozjs78 (UTSA-2024-002121)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2024-002121 advisory. When copying a network request from the developer tools panel as a curl command the output was not being properly sanitized and could allow arbitrary commands to be...

RHEL 10 : curl (RHSA-2026:55450)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:55450 advisory. The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including...

Important: curl security update

The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP, and LDAP. Security Fixes: curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication CVE-2026-1965 curl: curl:...

RockyLinux 10 : curl (RLSA-2026:55432)

The remote RockyLinux 10 host has packages installed that are affected by a vulnerability as referenced in the RLSA-2026:55432 advisory. curl: Information disclosure due to uncleared proxy authentication state CVE-2026-8927 Tenable has extracted the preceding description block directly from the...

RHEL 9 : curl (RHSA-2026:55439)

The remote Redhat Enterprise Linux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RHSA-2026:55439 advisory. The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including...

RHEL 10 : curl (RHSA-2026:55432)

The remote Redhat Enterprise Linux 10 host has packages installed that are affected by a vulnerability as referenced in the RHSA-2026:55432 advisory. The curl packages provide the libcurl library and the curl utility for downloading files from servers using various protocols, including HTTP, FTP,...

Unity Linux 20.1050a / 20.1060a / 20.1070a Security Update: thunderbird (UTSA-2026-100887)

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100887 advisory. Due to insufficient escaping of the newline character in the Copy as cURL feature, an attacker could trick a user into using this command, potentially leading to loc...

Oracle Linux 10 : curl (ELSA-2026-55432)

The remote Oracle Linux 10 host has packages installed that are affected by a vulnerability as referenced in the ELSA-2026-55432 advisory. - fix proxy environment variable change detection CVE-2026-8927 - fix HTTP Negotiate connection reuse auth bypass CVE-2026-1965 - fix OAuth2 bearer token leak...

RockyLinux 9 : curl (RLSA-2026:55439)

The remote RockyLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the RLSA-2026:55439 advisory. curl: curl: Authentication bypass due to incorrect connection reuse with Negotiate authentication CVE-2026-1965 curl: curl: Information disclosure via...