CVE-2025-27090
Server-Side Request Forgery (SSRF) in sliver teamserver
Reported by github_m · Published February 19, 2025
github.com/bishopfox/sliver is fixed in 1.5.43 (Go Modules)
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.
Fixed versions
Upgrade to a fixed version or later. Language registries are listed first, then Linux distributions, then vendor products.
| Package | Ecosystem | Fixed in |
|---|---|---|
| github.com/bishopfox/sliver | Go Modules | 1.5.43 |
| sliver | bishopfox | 1.5.43 |
Risk scores
Affected products
| Vendor | Product | Versions |
|---|---|---|
| BishopFox | sliver | >= 1.5.26, < 1.5.43 |
| github.com | bishopfox/sliver | 1.5.26 |
| BishopFox | sliver | 1.5.26 |
Timeline
- Feb 19, 2025 CVE Published
- Feb 19, 2025 CVE Updated
- Feb 20, 2025 EPSS Score (30 in total, the first dated here)
- Mar 17, 2026 Security Advisory
- Jun 15, 2026 Coalition ESS Score
Query this with the API
The same record, from the CLI:
vulnetix vdb vuln CVE-2025-27090
vulnetix vdb fixes CVE-2025-27090Or with curl, using the org id and key from your account page:
curl -s -H "Authorization: ApiKey ${VULNETIX_ORG_ID}:${VULNETIX_API_KEY}" \
"https://api.vdb.vulnetix.com/v2/vuln/CVE-2025-27090/fixes/registry"The Community plan is free and allows 50 queries a day. Get a free API key · API quickstart
References
- https://github.com/BishopFox/sliver/security/advisories/GHSA-fh4v-v779-4g2w x_refsource_CONFIRM
- https://github.com/BishopFox/sliver/commit/0f340a25cf3d496ed870dae7da39eab4427bc16f x_refsource_MISC
- https://github.com/BishopFox/sliver/commit/10e245326070c6a5884a02e0790bb7e2baefb3a1 x_refsource_MISC
- https://nvd.nist.gov/vuln/detail/CVE-2025-27090 advisory
- https://github.com/advisories/GHSA-fh4v-v779-4g2w advisory
- https://github.com/BishopFox/sliver url