Vulnerability · Published May 4, 2026 · Assigned by VulDB
CVE-2026-7735osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow
High 7.3
In plain English
A high-severity buffer overflow in GoBGP from osrg. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 30% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
A vulnerability was found in osrg GoBGP up to 4.3.0. Affected is the function PathAttributeAigp.DecodeFromBytes of the file pkg/packet/bgp/bgp.go of the component AIGP Attribute Parser. Performing a manipulation results in buffer overflow. It is possible to initiate the attack remotely. Upgrading to version 4.4.0 is able to address this issue. The patch is named 51ad1ada06cb41ce47b7066799981816f50b7ced. The affected component should be upgraded.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | gobgp | no fix listed | DEBIAN-CVE-2026-7735 |
| Debian:13 | gobgp | no fix listed | DEBIAN-CVE-2026-7735 |
| Debian:14 | gobgp | 4.4.0-1 | DEBIAN-CVE-2026-7735 |
| Ubuntu:25.10 | gobgp | no fix listed | UBUNTU-CVE-2026-7735 |
Affected products (as reported)
Weakness: CWE-120, CWE-119 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C
References
- VDB-360910 | osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow vdb-entry, technical-description
- VDB-360910 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- Submit #807600 | GoBGP 4.3.0 Improper Input Validation third-party-advisory
- https://github.com/osrg/gobgp/commit/51ad1ada06cb41ce47b7066799981816f50b7ced patch
- https://github.com/osrg/gobgp/releases/tag/v4.4.0 patch
- https://github.com/osrg/gobgp/ product