CVE-2026-5122
LOWosrg GoBGP BGP OPEN Message bgp.go DecodeFromBytes access control
Title source: cnaDescription
A security flaw has been discovered in osrg GoBGP up to 4.3.0. This affects the function DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component BGP OPEN Message Handler. Performing a manipulation of the argument domainNameLen results in improper access controls. The attack may be initiated remotely. A high degree of complexity is needed for the attack. The exploitability is reported as difficult. The patch is named 2b09db390a3d455808363c53e409afe6b1b86d2d. It is suggested to install a patch to address this issue.
Scores
CVSS v3
3.7
EPSS
0.0005
EPSS Percentile
17.0%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Details
CWE
CWE-266
CWE-284
Status
published
Products (5)
osrg/gobgp
< 4.4.0
osrg/GoBGP
4.0
osrg/GoBGP
4.1
osrg/GoBGP
4.2
osrg/GoBGP
4.3.0
Published
Mar 30, 2026
Tracked Since
Mar 30, 2026