CVE-2026-7735

osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflow

State: Published
Severity: 6.9 Medium
Published: May 4, 2026
Updated: May 4, 2026
Reserved: May 3, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	6.9 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:X	VulDB
3.1	7.3 High	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	VulDB
3.0	7.3 High	CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:X/RL:O/RC:C	VulDB
2.0	7.5 High	AV:N/AC:L/Au:N/C:P/I:P/A:P/E:ND/RL:OF/RC:C	VulDB

Weaknesses

CWE-120 Buffer Overflow
CWE-119 Memory Corruption

Affected Products

Product	Versions
GoBGPosrg	4.0Affected 4.1Affected 4.2Affected 4.3.0Affected 4.4.0Not affected

References

VDB-360910 | osrg GoBGP AIGP Attribute bgp.go PathAttributeAigp.DecodeFromBytes buffer overflowvdb-entrytechnical-description
VDB-360910 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
Submit #807600 | GoBGP 4.3.0 Improper Input Validationthird-party-advisory
https://github.com/osrg/gobgp/commit/51ad1ada06cb41ce47b7066799981816f50b7cedpatch
https://github.com/osrg/gobgp/releases/tag/v4.4.0patch
https://github.com/osrg/gobgp/product

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