GHSA-PCHF-49FH-W34R
Vulnerability from github – Published: 2026-01-21 23:02 – Updated: 2026-01-23 15:46
VLAI?
Summary
Soft Serve Affected by an Authentication Bypass
Details
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
Severity ?
{
"affected": [
{
"database_specific": {
"last_known_affected_version_range": "\u003c= 0.11.2"
},
"package": {
"ecosystem": "Go",
"name": "github.com/charmbracelet/soft-serve"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"fixed": "0.11.3"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2026-24058"
],
"database_specific": {
"cwe_ids": [
"CWE-289"
],
"github_reviewed": true,
"github_reviewed_at": "2026-01-21T23:02:07Z",
"nvd_published_at": "2026-01-22T22:16:21Z",
"severity": "HIGH"
},
"details": "### Impact\n_What kind of vulnerability is it? Who is impacted?_\n\nThis issue impacts every Soft Serve instance.\n\nA critical authentication bypass allows an attacker to impersonate any user (including Admin) by \"offering\" the victim\u0027s 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.\n\n### Patches\n_Has the problem been patched? What versions should users upgrade to?_\n\nYes, please upgrade to version 0.11.3 as soon as possible.\n\n### Workarounds\n_Is there a way for users to fix or remediate the vulnerability without upgrading?_\n\nYou need to upgrade",
"id": "GHSA-pchf-49fh-w34r",
"modified": "2026-01-23T15:46:52Z",
"published": "2026-01-21T23:02:07Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-pchf-49fh-w34r"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-24058"
},
{
"type": "WEB",
"url": "https://github.com/charmbracelet/soft-serve/commit/8539f9ad39918b67d612a35785a2b4326efc8741"
},
{
"type": "PACKAGE",
"url": "https://github.com/charmbracelet/soft-serve"
},
{
"type": "WEB",
"url": "https://github.com/charmbracelet/soft-serve/releases/tag/v0.11.3"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "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",
"type": "CVSS_V4"
}
],
"summary": "Soft Serve Affected by an Authentication Bypass"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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