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Vulnerability Details :

CVE-2026-24058

Summary
Assigner-GitHub_M
Assigner Org ID-a0819718-46f1-4df5-94e2-005712e83aaa
Published At-22 Jan, 2026 | 22:01
Updated At-23 Jan, 2026 | 20:14
Rejected At-
Credits

Soft Serve has Critical Authentication Bypass

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.

Vendors
-
Not available
Products
-
Metrics (CVSS)
VersionBase scoreBase severityVector
Weaknesses
Attack Patterns
Solution/Workaround
References
HyperlinkResource Type
EPSS History
Score
Latest Score
-
N/A
No data available for selected date range
Percentile
Latest Percentile
-
N/A
No data available for selected date range
Stakeholder-Specific Vulnerability Categorization (SSVC)
▼Common Vulnerabilities and Exposures (CVE)
cve.org
Assigner:GitHub_M
Assigner Org ID:a0819718-46f1-4df5-94e2-005712e83aaa
Published At:22 Jan, 2026 | 22:01
Updated At:23 Jan, 2026 | 20:14
Rejected At:
▼CVE Numbering Authority (CNA)
Soft Serve has Critical Authentication Bypass

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.

Affected Products
Vendor
charmbracelet
Product
soft-serve
Versions
Affected
  • < 0.11.3
Problem Types
TypeCWE IDDescription
CWECWE-289CWE-289: Authentication Bypass by Alternate Name
Type: CWE
CWE ID: CWE-289
Description: CWE-289: Authentication Bypass by Alternate Name
Metrics
VersionBase scoreBase severityVector
4.08.1HIGH
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
Version: 4.0
Base score: 8.1
Base severity: HIGH
Vector:
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
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-pchf-49fh-w34r
x_refsource_CONFIRM
https://github.com/charmbracelet/soft-serve/commit/8539f9ad39918b67d612a35785a2b4326efc8741
x_refsource_MISC
https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3
x_refsource_MISC
Hyperlink: https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-pchf-49fh-w34r
Resource:
x_refsource_CONFIRM
Hyperlink: https://github.com/charmbracelet/soft-serve/commit/8539f9ad39918b67d612a35785a2b4326efc8741
Resource:
x_refsource_MISC
Hyperlink: https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3
Resource:
x_refsource_MISC
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions

Configurations

Workarounds

Exploits

Credits

Timeline
EventDate
Replaced By

Rejected Reason

References
HyperlinkResource
Information is not available yet
▼National Vulnerability Database (NVD)
nvd.nist.gov
Source:security-advisories@github.com
Published At:22 Jan, 2026 | 22:16
Updated At:18 Feb, 2026 | 14:49

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.

CISA Catalog
Date AddedDue DateVulnerability NameRequired Action
N/A
Date Added: N/A
Due Date: N/A
Vulnerability Name: N/A
Required Action: N/A
Metrics
TypeVersionBase scoreBase severityVector
Secondary4.08.1HIGH
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary3.19.8CRITICAL
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Type: Secondary
Version: 4.0
Base score: 8.1
Base severity: HIGH
Vector:
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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Type: Primary
Version: 3.1
Base score: 9.8
Base severity: CRITICAL
Vector:
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
CPE Matches

charm
charm
>>soft_serve>>Versions before 0.11.3(exclusive)
cpe:2.3:a:charm:soft_serve:*:*:*:*:*:go:*:*
Weaknesses
CWE IDTypeSource
CWE-289Primarysecurity-advisories@github.com
CWE ID: CWE-289
Type: Primary
Source: security-advisories@github.com
Evaluator Description

Evaluator Impact

Evaluator Solution

Vendor Statements

References
HyperlinkSourceResource
https://github.com/charmbracelet/soft-serve/commit/8539f9ad39918b67d612a35785a2b4326efc8741security-advisories@github.com
Patch
https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3security-advisories@github.com
Product
Release Notes
https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-pchf-49fh-w34rsecurity-advisories@github.com
Vendor Advisory
Hyperlink: https://github.com/charmbracelet/soft-serve/commit/8539f9ad39918b67d612a35785a2b4326efc8741
Source: security-advisories@github.com
Resource:
Patch
Hyperlink: https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3
Source: security-advisories@github.com
Resource:
Product
Release Notes
Hyperlink: https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-pchf-49fh-w34r
Source: security-advisories@github.com
Resource:
Vendor Advisory

Change History

0
Information is not available yet

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