Description
Sliver is a command and control framework that uses a custom Wireguard netstack. In versions 1.5.43 and earlier, and in development version 1.6.0-dev, the netstack does not limit traffic between Wireguard clients. This allows clients to communicate with each other unrestrictedly, potentially enabling leaked or recovered keypairs to be used to attack operators or allowing port forwardings to be accessible from other implants.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| BishopFox | sliver | <= 1.5.43 | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | govulncheck-vulndb | 0.0.20251105T184115-1.1 | openSUSE-SU-2025:15710-1 |
| openSUSE Leap 16.0 | govulncheck-vulndb | 0.0.20260723T184607-160000.1.1 | openSUSE-SU-2026:21483-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/BishopFox/sliver | < 1.5.44 | 1.5.44 | GHSA-q8j9-34qf-7vq7 |
| Go | github.com/bishopfox/sliver | < 1.5.44 | 1.5.44 | GHSA-q8j9-34qf-7vq7 |
Advisories 2
- openSUSE-SU-2026:21483-1 Security update for govulncheck-vulndb SUSE / openSUSE Security Updates · Jul 31, 2026
- openSUSE-SU-2025:15710-1 govulncheck-vulndb-0.0.20251105T184115-1.1 on GA media SUSE / openSUSE Security Updates · Mar 23, 2026