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  5. GHSA-hjr9-wj7v-7hv8

GHSA-hjr9-wj7v-7hv8: Sliver Vulnerable to Pre-Auth Memory Exhaustion via NoEncoder Bypass

January 5, 2026

A specially crafted nonce routes unauthenticated requests through the NoEncoder path, where startSessionHandler() reads the entire request body without limits, allowing attacker-driven memory exhaustion and process crash.

References

  • github.com/BishopFox/sliver
  • github.com/BishopFox/sliver/security/advisories/GHSA-hjr9-wj7v-7hv8
  • github.com/advisories/GHSA-hjr9-wj7v-7hv8

Code Behaviors & Features

Detect and mitigate GHSA-hjr9-wj7v-7hv8 with GitLab Dependency Scanning

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Affected versions

All versions starting from 1.5.0 up to 1.5.44

Solution

Unfortunately, there is no solution available yet.

Impact 5.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Learn more about CVSS

Weakness

  • CWE-770: Allocation of Resources Without Limits or Throttling

Source file

go/github.com/bishopfox/sliver/GHSA-hjr9-wj7v-7hv8.yml

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