GoBGP has an Improper Resource Shutdown or Release

Exploitation

No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.

CVSS 4.0

6.9 · 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 · score source

EPSS

• CVE-2026-7734: 0.46% estimated exploitation activity in the next 30 days; percentile 40.27 (FIRST EPSS, 2026-11-03). This is a model estimate, not proof of exploitation or customer exposure.

As published by the source; long descriptions are shortened.

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/prefixsid.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. Users should upgrade the affected component.

Published by the source

4 May 2026, 06:32 UTC

Last modified by the source

8 May 2026, 16:51 UTC

Source last checked

26 Oct 2026, 15:20 UTC

1. Revision 1 · created · 26 Oct 2026

   Published from ghsa record GHSA-vm3g-8xwv-mxfp

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# Patch Next advisory brief: CVE-2026-7734

Advisory: GoBGP has an Improper Resource Shutdown or Release
IDs: CVE-2026-7734, GHSA-vm3g-8xwv-mxfp
Record: https://patchnext.com/advisories/cve-2026-7734 (revision 1, source checked 26 Oct 2026, 15:20 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Medium (CVSS 6.9)
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: github.com/osrg/gobgp/v4 4.4.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- Go github.com/osrg/gobgp/v4: affected < 4.4.0; fixed in 4.4.0

## Suggested inspection (read-only)
- Go github.com/osrg/gobgp/v4: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on github.com/osrg/gobgp/v4.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-vm3g-8xwv-mxfp (GitHub-reviewed advisory GHSA-vm3g-8xwv-mxfp lists affected ranges: Go github.com/osrg/gobgp/v4 >=0 <4.4.0)

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