CVE-2026-7734

osrg GoBGP SRv6 L3 Service prefix_sid.go SRv6L3ServiceAttribute.DecodeFromBytes denial of service

Assigner: VulDB
Reserved: 03.05.2026 Published: 04.05.2026 Updated: 04.05.2026

A vulnerability has been found in osrg GoBGP up to 4.3.0. This impacts the function SRv6L3ServiceAttribute.DecodeFromBytes of the file pkg/packet/bgp/prefix_sid.go of the component SRv6 L3 Service. Such manipulation of the argument data leads to denial of service. The attack may be performed from remote. Upgrading to version 4.4.0 will fix this issue. The name of the patch is f9f7b55ec258e514be0264871fa645a2c3edad11. You should upgrade the affected component.

Metrics

CVSS Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X
CVSS Score: 6.9

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	None	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	Low	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
CVSS Score: 5.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.1

CVSS Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L/E:X/RL:O/RC:C
CVSS Score: 5.3

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	None
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	Low

CVSS 3.0

CVSS Vector: AV:N/AC:L/Au:N/C:N/I:N/A:P/E:ND/RL:OF/RC:C
CVSS Score: 5

Access Vector	Network	Confidentiality Impact	None
Access Complexity	Low	Integrity Impact	None
Authentication	None	Availability Impact	Partial

CVSS 2.0

Product Status

Vendor	osrg
Product	GoBGP
Versions	Version 4.0 is affected Version 4.1 is affected Version 4.2 is affected Version 4.3.0 is affected Version 4.4.0 is unaffected

Vendor

osrg

Product

GoBGP

Versions

Version 4.0 is affected
Version 4.1 is affected
Version 4.2 is affected
Version 4.3.0 is affected
Version 4.4.0 is unaffected

Credits

rensiru (VulDB User) reporter

References

Problem Types