Description
Sliver is an open source cross-platform adversary emulation/red team framework, it can be used by organizations of all sizes to perform security testing. The reverse port forwarding in sliver teamserver allows the implant to open a reverse tunnel on the sliver teamserver without verifying if the operator instructed the implant to do so. The only impact that has been shown is the exposure of the server's IP address to a third party. This issue has been addressed in version 1.5.43 and all users are advised to upgrade. There are no known workarounds for this vulnerability.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| BishopFox | sliver | >= 1.5.26, < 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 | 0.0.20250312T181707-1.1 | openSUSE-SU-2025:14889-1 |
Affected packages
| Ecosystem | Package | Affected | Fixed | Record |
|---|---|---|---|---|
| Go | github.com/bishopfox/sliver | >= 1.5.26, < 1.5.43 | 1.5.43 | GHSA-fh4v-v779-4g2w |
Advisories 1
- openSUSE-SU-2025:14889-1 govulncheck-vulndb-0.0.20250312T181707-1.1 on GA media SUSE / openSUSE Security Updates · Feb 4, 2026