High 8.1Published Jan 22, 2026

CVE-2026-24058Soft Serve has Critical Authentication Bypass

Updated under an hour ago (Oct 28, 2026, 1:00 PM ET)

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It affects charmbracelet soft-serve and 1 other product. Add what you run to find out whether that includes you.

No exploitation reported and no EPSS estimate yet.

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Every CVE for charmbracelet soft-serve

Exploited in the last 30 days

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: 8.1 HIGH (v4.0, CNA)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
Weakness (CWE): CWE-289
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: GitHub_M
NVD analysis: Analyzed
Record last updated: Jan 23, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

charmbracelet soft-serve charmbracelet:soft_serve (from the name)	before 0.11.3	CNA record
charm soft_serve charm:soft_serve	before 0.11.3	NVD

References

References

https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-pchf-49fh-w34r	x-refsource-confirm, vendor-advisory
https://github.com/charmbracelet/soft-serve/commit/8539f9ad39918b67d612a35785a2b4326efc8741	x-refsource-misc, patch
https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3	x-refsource-misc, product, release-notes

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.