CVE-2026-24058
criticalpriority · track · 39EPSS 0.006 · 47 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · high–critical · 8.1–9.8
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
The CWE weakness classes this flaw belongs to.
affected products (3)
Products and version ranges known to be affected.
advisories (2)
Vendor and ecosystem advisories describing this.
- GHSA-pchf-49fh-w34rSoft Serve Affected by an Authentication Bypass2026-01-21ghsa · osvUS
### 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
- GO-2026-4353Soft Serve Affected by an Authentication Bypass in github.com/charmbracelet/soft-serve2026-02-02vendor · osvUS
Soft Serve Affected by an Authentication Bypass in github.com/charmbracelet/soft-serve
also known as (5)
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sources
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references (11)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-24058cnnvd
- https://github.com/charmbracelet/soft-serve/commit/8539f9ad39918b67d612a35785a2b4326efc8741cnnvd
- https://github.com/charmbracelet/soft-serve/releasesPatchcnnvd
- https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3cnnvd
- https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-pchf-49fh-w34rcnnvd
- https://github.com/charmbracelet/soft-serve/commit/8539f9ad39918b67d612a35785a2b4326efc8741enisa_euvd
- https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3enisa_euvd
- https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-pchf-49fh-w34renisa_euvd
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