CVE-2026-24058
CRITICAL
GHSA-pchf-49fh-w34r
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
3Description
Soft Serve is a self-hostable Git server for the command line. Versions 0.11.2 and below have a critical authentication bypass vulnerability that 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. This issue has been fixed in version 0.11.3.
Analysis
Soft Serve self-hosted Git server versions 0.11.2 and below have a critical authentication bypass that allows unauthenticated access to private repositories.
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Remediation
Within 24 hours: Identify all Soft Serve instances in use and assess exposure scope; notify relevant business and technical stakeholders. Within 7 days: Apply the available vendor patch to all affected systems; conduct verification testing in non-production environments first. …
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External POC / Exploit Code
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