RHSA-2026:99150: Moderate: curl security update

Published Nov 11, 2026
·
Updated

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 Fix(es): curl: curl: Proxy credential disclosure via redirects to unauthenticated proxies (CVE-2026-6253) curl: libcurl: Authentication bypass due to incorrect HTTP Negotiate connection reuse (CVE-2026-5545) curl: libcurl: Credential leak via reused proxy connection during HTTP redirects (CVE-2026-6429) curl: libcurl: Information disclosure via incorrect Proxy-Authorization header reuse (CVE-2026-7168) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Affected Software

40 affected componentsFixes available
redhat/curl<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-debugsource<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-debugsource<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-minimal<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-minimal-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-minimal-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-devel<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-devel<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-minimal<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-minimal<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-minimal-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-minimal-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-minimal<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-debugsource<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-minimal<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl-minimal-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-devel<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-minimal<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/libcurl-minimal-debuginfo<7.76.1-40.el9_8.10
7.76.1-40.el9_8.10
redhat/curl<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa
redhat/curl-debuginfo<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa
redhat/curl-debugsource<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa
redhat/curl-minimal<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa
redhat/curl-minimal-debuginfo<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa
redhat/libcurl<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa
redhat/libcurl-debuginfo<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa
redhat/libcurl-devel<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa
redhat/libcurl-minimal<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa
redhat/libcurl-minimal-debuginfo<7.76.1-40.el9_8.10.aa
7.76.1-40.el9_8.10.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade redhat/curl to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  2. Upgrade

    Upgrade redhat/curl-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  3. Upgrade

    Upgrade redhat/curl-debugsource to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  4. Upgrade

    Upgrade redhat/curl-minimal to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  5. Upgrade

    Upgrade redhat/curl-minimal-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  6. Upgrade

    Upgrade redhat/libcurl to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  7. Upgrade

    Upgrade redhat/libcurl-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  8. Upgrade

    Upgrade redhat/libcurl-devel to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  9. Upgrade

    Upgrade redhat/libcurl-minimal to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  10. Upgrade

    Upgrade redhat/libcurl-minimal-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10
  11. Upgrade

    Upgrade redhat/curl to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa
  12. Upgrade

    Upgrade redhat/curl-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa
  13. Upgrade

    Upgrade redhat/curl-debugsource to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa
  14. Upgrade

    Upgrade redhat/curl-minimal to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa
  15. Upgrade

    Upgrade redhat/curl-minimal-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa
  16. Upgrade

    Upgrade redhat/libcurl to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa
  17. Upgrade

    Upgrade redhat/libcurl-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa
  18. Upgrade

    Upgrade redhat/libcurl-devel to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa
  19. Upgrade

    Upgrade redhat/libcurl-minimal to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa
  20. Upgrade

    Upgrade redhat/libcurl-minimal-debuginfo to a version that resolves this vulnerability.

    Fixed in 7.76.1-40.el9_8.10.aa

Event History

Nov 11, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software

Company

Resources

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