Soft Serve Affected by an Authentication Bypass

CVE-2026-24058 → View on GitHub ↗ View on CVE.org ↗ View on NVD ↗

Description

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

Basic information

Type
reviewed
Severity
high
Advisory on GitHub
Open advisory ↗
Repository advisory
Open repository advisory ↗
Source code
Browse source ↗
Published (advisory)
2026-01-21 23:02:07 UTC
Updated
2026-01-23 15:46:54 UTC
GitHub reviewed
2026-01-21 23:02:07 UTC
NVD published
2026-01-22

EPSS Score

Score Percentile
0.05% 15.49%

CVSS Scores

Base score Version Severity Vector
8.1 4.0 —
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network.
Attack complexity (AC:L)
Exploitation conditions are straightforward and stable.
Attack requirements (AT:N)
No additional preconditions are required beyond normal reachability.
Privileges required (PR:N)
No privileges are required.
User interaction (UI:N)
No user interaction is required.
Vulnerable system confidentiality impact (VC:H)
High confidentiality impact on the vulnerable system.
Vulnerable system integrity impact (VI:H)
High integrity impact on the vulnerable system.
Vulnerable system availability impact (VA:H)
High availability impact on the vulnerable system.
Subsequent system confidentiality impact (SC:N)
No confidentiality impact on subsequent systems.
Subsequent system integrity impact (SI:N)
No integrity impact on subsequent systems.
Subsequent system availability impact (SA:N)
No availability impact on subsequent systems.
Exploit maturity (threat) (E:U)
Unreported: no public PoC, no reported exploitation, and no known simplification tools.

Identifiers

Type Value
GHSA GHSA-pchf-49fh-w34r ↗
CVE CVE-2026-24058 ↗

CWEs

CWE id Name
CWE-289 Authentication Bypass by Alternate Name

Credits

  • juancabe (reporter)
  • aymanbagabas (remediation_developer)

Affected packages (1)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem Package Vulnerable range First patched Vulnerable functions
go github.com/charmbracelet/soft-serve <= 0.11.2 0.11.3 —

References

cvelogic Threat Intelligence