CVE-2026-7734 Details
Description
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.
A denial-of-service vulnerability has been identified in osrg GoBGP versions prior to 4.3.0. The issue arises in the SRv6 L3 Service component, specifically within the SRv6L3ServiceAttribute.DecodeFromBytes function in the file pkg/packet/bgp/prefix_sid.go. The vulnerability can be exploited remotely by manipulating the input data, which leads to an infinite loop, causing the BGP daemon to become unresponsive.
Users are advised to upgrade to osrg GoBGP version 4.4.0 or later, where this vulnerability has been fixed.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 4, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/osrg/gobgp/ | [email protected] | Product |
| https://github.com/osrg/gobgp/commit/f9f7b55ec258e514be0264871fa645a2c3edad11 | [email protected] | Patch |
| https://github.com/osrg/gobgp/releases/tag/v4.4.0 | [email protected] | PatchProduct |
| https://vuldb.com/submit/807581 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/360909 | [email protected] | Third Party AdvisoryVDB Entry |
| https://vuldb.com/vuln/360909/cti | [email protected] | Permissions RequiredVDB Entry |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-404 | Improper Resource Shutdown or Release | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| osrg gobgp | < 4.4.0 |
CPE
Remediation
| |
Change History
4 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 6, 2026 | Initial Analysis | [email protected] |
| May 4, 2026 | New CVE Received | [email protected] |