CVE-2025-64494: Github.com/charmbracelet/soft serve Soft Serve Does Not Sanitize Vulnerability

MODERATE
Advisory Identifier: GHSA-fv2r-r8mp-pg48
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CVSS 4.6
CWE-150
Published
Advisory Summary

CVE-2025-64494 is a MODERATE (CVSS 4.6) soft serve does not sanitize vulnerability (CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences) affecting Github.com/charmbracelet/soft serve libraries in the Go ecosystem. The issue involves soft serve does not sanitize ansi escape sequences in user input. Remediation is available by upgrading affected packages to version 0.11.0.

CVE-2025-64494 at a Glance

CVE Identifier CVE-2025-64494
GHSA Identifier GHSA-fv2r-r8mp-pg48
Severity MODERATE
CVSS v3.1 Base Score 4.6
CWE Classification CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences
Affected Product Github.com/charmbracelet/soft serve
Package Ecosystem Go
Published Date
Last Updated

Security Impact

CVSS: 4.6

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality Low (C:L)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-64494

To remediate this vulnerability, upgrade all affected Github.com/charmbracelet/soft serve dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/charmbracelet/soft-serve fixed: 0.11.0 
Upgrade github.com/charmbracelet/soft-serve to 0.11.0
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/charmbracelet/soft-serve

How to Check if You Are Affected

To determine whether your application is affected by CVE-2025-64494, inspect your project dependencies for Github.com/charmbracelet/soft serve:

inspect dependencies for github.com/charmbracelet/soft-serve

Analyze the terminal output to locate any version of Github.com/charmbracelet/soft serve in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.11.0), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences, where the product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as escape, meta, or control character sequences when they are sent to a downstream component. In Github.com/charmbracelet/soft serve, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact In several places where the user can insert data (e.g. names), ANSI escape sequences are not being removed, which can then be used, for example, to show fake alerts. In the same token, git messages, when printed, are also not being sanitized. Places in which this was found: 1. Repository Description (pkg/backend/repo.go - SetDescription) 2. Repository Project Name (pkg/backend/repo.go - SetProjectName) 3. Git Commit Author Names (pkg/ssh/cmd/commit.go:69) 4. Git Commit Messages (pkg/ssh/cmd/commit.go:71) 5. Access Token Names (pkg/ssh/cmd/token.go:107) 6. Webhook URLs (pkg/ssh/cmd/webhooks.go:72) ### Patches v0.11.0 ### Workarounds No. ### References n/a

CVE-2025-64494 Affected Github.com/charmbracelet/soft serve Versions

1 component(s)
Fixed Versions:
0.11.0
Product / Package Ecosystem Affected Versions Fixed Version
github.com/charmbracelet/soft-serve
golang/github.com/charmbracelet/soft-serve
Go
< 0.11.0
0.11.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-fv2r-r8mp-pg48
NVD — CVE-2025-64494 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-64494
Security Fix Commit FIX COMMIT
https://github.com/charmbracelet/soft-serve/commit/d9639320b8d0ccd76fe6836a042c042b0ebde549
Github.com/charmbracelet/soft serve Source Repository REPOSITORY
https://github.com/charmbracelet/soft-serve

Frequently Asked Questions

What is CVE-2025-64494?
CVE-2025-64494 is a security vulnerability in Github.com/charmbracelet/soft serve involving Soft Serve does not sanitize ANSI escape sequences in user input under CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences.
Which Github.com/charmbracelet/soft serve versions are affected?
Affected versions include releases prior to 0.11.0 across affected packages: github.com/charmbracelet/soft-serve.
What version fixes CVE-2025-64494?
Upgrading to 0.11.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/charmbracelet/soft-serve affected?
Yes, github.com/charmbracelet/soft-serve is affected in releases prior to 0.11.0. Upgrade your dependency to 0.11.0 or later.
What is the CVSS score of CVE-2025-64494?
CVE-2025-64494 has a CVSS v3.1 base score of 4.6 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N.
What CWE is associated with CVE-2025-64494?
CVE-2025-64494 is classified under CWE-150: Improper Neutralization of Escape, Meta, or Control Sequences (The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as escape, meta, or control character sequences when they are sent to a downstream component.).
How can I check Go dependencies for CVE-2025-64494?
Run the dependency tree command: 'inspect dependencies for github.com/charmbracelet/soft-serve'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-fv2r-r8mp-pg48",
  "modified" : "2025-11-17T21:49:09Z",
  "published" : "2025-11-06T23:48:12Z",
  "aliases" : [ "CVE-2025-64494" ],
  "summary" : "Soft Serve does not sanitize ANSI escape sequences in user input",
  "details" : "### Impact\nIn several places where the user can insert data (e.g. names), ANSI escape sequences are not being removed, which can then be used, for example, to show fake alerts.\n\nIn the same token, git messages, when printed, are also not being sanitized.\n\nPlaces in which this was found:\n\n1. Repository Description (pkg/backend/repo.go - SetDescription)\n2. Repository Project Name (pkg/backend/repo.go - SetProjectName)\n3. Git Commit Author Names (pkg/ssh/cmd/commit.go:69)\n4. Git Commit Messages (pkg/ssh/cmd/commit.go:71)\n5. Access Token Names (pkg/ssh/cmd/token.go:107)\n6. Webhook URLs (pkg/ssh/cmd/webhooks.go:72)\n\n### Patches\nv0.11.0\n\n### Workarounds\nNo.\n\n### References\nn/a",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/charmbracelet/soft-serve"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.11.0"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 0.10.0"
    }
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/charmbracelet/soft-serve/security/advisories/GHSA-fv2r-r8mp-pg48"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-64494"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/charmbracelet/soft-serve/commit/d9639320b8d0ccd76fe6836a042c042b0ebde549"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/charmbracelet/soft-serve"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-150" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-11-06T23:48:12Z",
    "nvd_published_at" : "2025-11-08T02:15:35Z"
  }
}