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TI-2026-20827 Aliases CVE-2026-25760GHSA-2286-hxv5-cmp2

Website Path Traversal / Arbitrary File Read (Authenticated) in Sliver

Priority LOW 30CWE-22Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Information disclosure
Confidentiality · integrity · availability
High · None · None
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-22 and the CVSS impact.

Summary

Sliver is a command and control framework that uses a custom Wireguard netstack. Prior to 1.6.11, a path traversal in the website content subsystem lets an authenticated operator read arbitrary files on the Sliver server host. This is an authenticated path traversal / arbitrary file read issue, and it can expose credentials, configs, and keys. This vulnerability is fixed in 1.6.11.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00539 45th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed sliver (BishopFox): 1.6.11github.com/bishopfox/sliver (Go): 1.6.11

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
BishopFoxsliverbefore 1.6.111.6.11Patch availableCNA
—github.com/bishopfox/sliver (Go)before 1.6.111.6.11Patch availableGHSA-2286-hxv5-cmp2
  • sliver VendorBishopFox Affected before 1.6.11 Fixed in 1.6.11 Patch available CNA
  • github.com/bishopfox/sliver (Go) Vendor— Affected before 1.6.11 Fixed in 1.6.11 Patch available GHSA-2286-hxv5-cmp2

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:bishopfox:sliver:*:*:*:*:*:*:*:*before 1.6.11VulnerableBishopFox
  • cpe:2.3:a:bishopfox:sliver:*:*:*:*:*:*:*:* Versions before 1.6.11 Vulnerable ·BishopFox

Remediation

  • Fix · CNA sliver (BishopFox) Fixed in 1.6.11
  • Fix · GHSA-2286-hxv5-cmp2 github.com/bishopfox/sliver (Go) Fixed in 1.6.11 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-25760
  2. 2026-10-03 Alias added: GHSA-2286-hxv5-cmp2

References

  • TI-2025-19960 Server-Side Request Forgery (SSRF) in sliver teamserver CVSS 4.0MEDIUM 6.9
  • TI-2023-17391 Sliver from v1.5.x to v1.5.39 has an improper cryptographic implementation, which allows… CVSS 3.1HIGH 8.1
  • TI-2026-26522 Sliver One-Click Remote Access: Insecure CORS & Unauthenticated MCP Interface CVSS 4.0MEDIUM 5.9
  • TI-2026-25389 Sliver Vulnerable to Authenticated OOM via Memory Exhaustion in mTLS/WireGuard Transports CVSS 4.0MEDIUM 5.7
  • TI-2026-23367 Sliver: Authenticated Nil-Pointer Dereference in Handlers CVSS 4.0LOW 2.1
  • TI-2026-20855 Sliver has a DNS C2 OTP Bypass Allows Unauthenticated Session Flooding and Denial of Service CVSS 3.1HIGH 7.5

Sources