Packages
- gobgp - BGP implementation in Go
Details
It was discovered that GoBGP incorrectly handled certain specially crafted
BGP UPDATE messages. A remote attacker could possibly use this issue to
cause GoBGP to crash, resulting in a denial of service. (CVE-2026-37461)
Yanlei Wang discovered that GoBGP incorrectly handled certain malformed BGP
UPDATE messages containing 4-byte AS attributes. A remote attacker could
possibly use this issue to cause GoBGP to crash, resulting in a denial of
service. (CVE-2026-41643)
It was discovered that GoBGP incorrectly handled certain malformed BGP
UPDATE messages containing SRv6 L3 Service attributes. A remote attacker
could possibly use this issue to cause GoBGP to crash, resulting in a
denial of service. (CVE-2026-7734)
It was discovered that GoBGP incorrectly handled certain malformed BGP
UPDATE messages containing...
It was discovered that GoBGP incorrectly handled certain specially crafted
BGP UPDATE messages. A remote attacker could possibly use this issue to
cause GoBGP to crash, resulting in a denial of service. (CVE-2026-37461)
Yanlei Wang discovered that GoBGP incorrectly handled certain malformed BGP
UPDATE messages containing 4-byte AS attributes. A remote attacker could
possibly use this issue to cause GoBGP to crash, resulting in a denial of
service. (CVE-2026-41643)
It was discovered that GoBGP incorrectly handled certain malformed BGP
UPDATE messages containing SRv6 L3 Service attributes. A remote attacker
could possibly use this issue to cause GoBGP to crash, resulting in a
denial of service. (CVE-2026-7734)
It was discovered that GoBGP incorrectly handled certain malformed BGP
UPDATE messages containing Accumulated IGP (AIGP) attributes. A remote
attacker could possibly use this issue to cause GoBGP to crash, resulting
in a denial of service. (CVE-2026-7735)
It was discovered that GoBGP incorrectly handled certain malformed Multi-
threaded Routing Toolkit (MRT) routing information entries. A remote
attacker could possibly use this issue to cause GoBGP to crash, resulting
in a denial of service. (CVE-2026-7736)
It was discovered that GoBGP incorrectly handled certain malformed Multi-
threaded Routing Toolkit (MRT) headers. A remote attacker could possibly
use this issue to cause GoBGP to crash, resulting in a denial of service.
(CVE-2026-7737)
Update instructions
In general, a standard system update will make all the necessary changes.
Learn more about how to get the fixes.The problem can be corrected by updating your system to the following package versions:
| Ubuntu Release | Package Version | ||
|---|---|---|---|
| 26.04 LTS resolute | gobgpd – 3.36.0-2ubuntu0.1~esm1 | ||
| 24.04 LTS noble | gobgpd – 3.23.0-1ubuntu0.3+esm4 | ||
| 22.04 LTS jammy | gobgpd – 2.25.0-3ubuntu0.1+esm4 | ||
| 20.04 LTS focal | gobgpd – 2.12.0-1ubuntu0.1~esm3 | ||
| 18.04 LTS bionic | gobgpd – 1.29-1ubuntu0.1+esm2 | ||
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