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.
CVE-2026-24058
CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence
This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 0.1%, top 83% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
Triggered by: NVD CVSS baseline
Sources: epss, nvd
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
- High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 1%CVSS: 9.8Exploit: NoneExposed: 0
No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.
- CVSS v3
- 9.8
- EG Score
- 9.8(medium)
- EPSS
- 41.7%
- KEV
- Not listed
Published
January 22, 2026
Last Modified
February 18, 2026
Advisory Details (3)
Auto-updated Jun 5, 2026Patch available. Sources: github_commit, github_release, github.
github Patch Available
Critical Authentication Bypass · Advisory · charmbracelet/soft-serve · GitHub
https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-pchf-49fh-w34rgithub_release Patch Available
v0.11.3
Patch available: charmbracelet/soft-serve v0.11.3
https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3github_commit
commit 8539f9ad3991 (charmbracelet/soft-serve)
Fix landed in charmbracelet/soft-serve commit 8539f9ad3991 — awaiting tagged release
https://github.com/charmbracelet/soft-serve/commit/8539f9ad39918b67d612a35785a2b4326efc8741Affected Packages
(1 across 1 ecosystem)
Go(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| github.com/charmbracelet/soft-serve | — | 0.11.3 | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Frequently asked(5)
What is CVE-2026-24058?
CVE-2026-24058 is a critical vulnerability published on January 22, 2026. 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…
When was CVE-2026-24058 disclosed?
CVE-2026-24058 was first published in the National Vulnerability Database on January 22, 2026, with the most recent update on February 18, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-24058 actively exploited?
CVE-2026-24058 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 41.7% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2026-24058?
CVE-2026-24058 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2026-24058?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-24058, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.
Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2026-24058
Is Your Infrastructure Affected by CVE-2026-24058?
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