Headline
GHSA-pchf-49fh-w34r: Soft Serve Affected by an Authentication Bypass
Impact
What kind of vulnerability is it? Who is impacted?
This issue impacts every Soft Serve instance.
A critical authentication bypass allows an attacker to impersonate any user (including Admin) by “offering” the victim’s public key during the SSH handshake before authenticating with their own valid key. This occurs because the user identity is stored in the session context during the “offer” phase and is not cleared if that specific authentication attempt fails.
Patches
Has the problem been patched? What versions should users upgrade to?
Yes, please upgrade to version 0.11.3 as soon as possible.
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
You need to upgrade
- GitHub Advisory Database
- GitHub Reviewed
- GHSA-pchf-49fh-w34r
Soft Serve Affected by an Authentication Bypass
High severity GitHub Reviewed Published Jan 21, 2026 in charmbracelet/soft-serve • Updated Jan 21, 2026
Package
gomod github.com/charmbracelet/soft-serve (Go)
Affected versions
<= 0.11.2
Impact
What kind of vulnerability is it? Who is impacted?
This issue impacts every Soft Serve instance.
A critical authentication bypass allows an attacker to impersonate any user (including Admin) by “offering” the victim’s public key during the SSH handshake before authenticating with their own valid key. This occurs because the user identity is stored in the session context during the “offer” phase and is not cleared if that specific authentication attempt fails.
Patches
Has the problem been patched? What versions should users upgrade to?
Yes, please upgrade to version 0.11.3 as soon as possible.
Workarounds
Is there a way for users to fix or remediate the vulnerability without upgrading?
You need to upgrade
References
- GHSA-pchf-49fh-w34r
- charmbracelet/soft-serve@8539f9a
- https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3
Published to the GitHub Advisory Database
Jan 21, 2026
Last updated
Jan 21, 2026