RHSA-2026:49527: Important: frr security, bug fix, and enhancement update

Published Aug 3, 2026
·
Updated

FRRouting is free software that manages TCP/IP based routing protocols. It supports BGP4, OSPFv2, OSPFv3, ISIS, RIP, RIPng, PIM, NHRP, PBR, EIGRP and BFD. Security Fix(es): frr: FRRouting: Denial of Service via crafted BGP UPDATE message (CVE-2026-37460) Bug Fix(es) and Enhancement(s): Zebra is not installing the route in the kernel after flapping one of the physical link on the ocp worker node. [rhel-9.8.z] (JIRA:RHEL-152300) frr triggers SELinux denials when reading root's Python site-packages directory on RHEL-9 (JIRA:RHEL-176258) 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.

Other sources

Important: frr security, bug fix, and enhancement update

— Red Hat

Affected Software

29 affected componentsFixes available
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Update Support
Red Hat Red Hat Enterprise Linux for ARM 64
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for x86_64
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - Extended Life Cycle
Red Hat Red Hat Enterprise Linux Server for Power LE - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Update Support
Red Hat Red Hat Enterprise Linux for IBM z Systems - 4 years of updates
Red Hat Red Hat Enterprise Linux for Power, little endian
Red Hat Red Hat Enterprise Linux for x86_64 - Update Services for SAP Solutions
Red Hat Red Hat Enterprise Linux for Power, little endian - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for x86_64 - Extended Life Cycle
Red Hat Red Hat Enterprise Linux for ARM 64 - 4 years of updates
Red Hat Red Hat Enterprise Linux for IBM z Systems
Red Hat Red Hat Enterprise Linux for ARM 64 - Extended Life Cycle
redhat/frr<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr-debuginfo<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr-debugsource<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr-selinux<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr-debuginfo<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr-debugsource<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr-debuginfo<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr-debugsource<8.5.3-15.el9_8.1
8.5.3-15.el9_8.1
redhat/frr<8.5.3-15.el9_8.1.aa
8.5.3-15.el9_8.1.aa
redhat/frr-debuginfo<8.5.3-15.el9_8.1.aa
8.5.3-15.el9_8.1.aa
redhat/frr-debugsource<8.5.3-15.el9_8.1.aa
8.5.3-15.el9_8.1.aa

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

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

    Fixed in 8.5.3-15.el9_8.1
  2. Upgrade

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

    Fixed in 8.5.3-15.el9_8.1
  3. Upgrade

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

    Fixed in 8.5.3-15.el9_8.1
  4. Upgrade

    Upgrade redhat/frr-selinux to a version that resolves this vulnerability.

    Fixed in 8.5.3-15.el9_8.1
  5. Upgrade

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

    Fixed in 8.5.3-15.el9_8.1.aa
  6. Upgrade

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

    Fixed in 8.5.3-15.el9_8.1.aa
  7. Upgrade

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

    Fixed in 8.5.3-15.el9_8.1.aa
  8. Upgrade

    Upgrade frr (FRRouting) to a version that resolves this vulnerability.

    Patch CVE-2026-37460
  9. Upgrade

    Upgrade frr (FRRouting) to a version that resolves this vulnerability.

    Patch JIRA:RHEL-176258
  10. Upgrade

    Upgrade rhel-9.8.z to a version that resolves this vulnerability.

    Patch JIRA:RHEL-152300

Event History

Aug 3, 2026
Advisory Published
via Red Hat·12:00 AM
Data Sourced
via Red Hat·12:00 AM
RemedyDescriptionAffected Software
Advisory Published
via Red Hat·12:56 AM
Data Sourced
via Red Hat·12:56 AM
Severity
Free Weekly Intel

Don't miss critical vulnerabilities

Join thousands of security professionals who receive our weekly digest of trending CVEs, zero-days, and exploited vulnerabilities.

No spam. Unsubscribe anytime.

Frequently Asked Questions

1

What is the severity of RHSA-2026:49527?

The severity of RHSA-2026:49527 is classified as high with a score of 7.

2

What does RHSA-2026:49527 address?

RHSA-2026:49527 addresses security vulnerabilities, bug fixes, and enhancements in the frr package.

3

How do I fix RHSA-2026:49527?

To fix RHSA-2026:49527, users should apply the available updates for their respective Red Hat Enterprise Linux version.

4

Which systems are affected by RHSA-2026:49527?

RHSA-2026:49527 affects multiple Red Hat Enterprise Linux systems including IBM z Systems, ARM 64, x86_64, and Power.

5

When was RHSA-2026:49527 published?

RHSA-2026:49527 was published on August 3, 2026.

Company

Resources

Contact

SecAlerts Pty Ltd.
132 Wickham Terrace
Fortitude Valley,
QLD 4006, Australia
info@secalerts.co
By using SecAlerts services, you agree to our services end-user license agreement. This website is safeguarded by reCAPTCHA and governed by the Google Privacy Policy and Terms of Service. All names, logos, and brands of products are owned by their respective owners, and any usage of these names, logos, and brands for identification purposes only does not imply endorsement. If you possess any content that requires removal, please get in touch with us.
© 2026 SecAlerts Pty Ltd.
ABN: 70 645 966 203, ACN: 645 966 203