High 2026-08-06

Frr Security Update — AlmaLinux 9 (ALSA-2026:49527)

AlmaLinux 9

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 n…

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 n…

Type:

security

Severity:

important

Release date:

2026-08-06

Description:

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. [almalinux-9.8.z] (JIRA:AlmaLinux-152300)

  * frr triggers SELinux denials when reading root’s Python site-packages directory on AlmaLinux-9 (JIRA:AlmaLinux-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.

References:

Updated packages listed below:

Architecture	Package	Checksum
aarch64	frr-8.5.3-15.el9_8.1.aarch64.rpm	711342101cc441ecd9eec003fd01cc291c13436725e29eee5bbe71a8c01ffc10
noarch	frr-selinux-8.5.3-15.el9_8.1.noarch.rpm	28b90322fe0e517b6678a97af89552cdcd90d85a98188a067b7927be3a71f11c
ppc64le	frr-8.5.3-15.el9_8.1.ppc64le.rpm	dde1fba668761b65f1bb139e74c194d10b0f19c33b0f9fdaf1a2e7a02c68d7cb
s390x	frr-8.5.3-15.el9_8.1.s390x.rpm	e5e8b32ea1d29355245899bccf2b1a849d1d45859acc4a1532a045a7615fbc38
x86_64	frr-8.5.3-15.el9_8.1.x86_64.rpm	b0997893037d5466f9fd6d82abb443f6b82c636b1f95961a5137a49a7110748b

Notes:

This page is generated automatically from Red Hat security data and has not been checked for errors. For clarification or corrections please contact the AlmaLinux Packaging Team.

How to Apply the Fix

Update the affected packages on your server to the patched release, then restart the relevant services.

sudo dnf update

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