GHSA-6fgx-x7m2-74qm: Tracexec Tracexec Has `env` Command Argument Vulnerability

LOW
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CWE-88 CWE-77
Published
Advisory Summary

GHSA-6fgx-x7m2-74qm is a LOW tracexec has `env` command argument vulnerability (CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')) affecting Tracexec libraries in the crates.io ecosystem. The issue involves tracexec has `env` command argument injection via environment variables starting with dash in traced exec events. Remediation is available by upgrading affected packages to version 0.14.0.

GHSA-6fgx-x7m2-74qm at a Glance

CVE Identifier N/A
GHSA Identifier GHSA-6fgx-x7m2-74qm
Severity LOW
CVSS v3.1 Base Score N/A
CWE Classification CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection')
Affected Product Tracexec
Package Ecosystem crates.io
Published Date
Last Updated

How to Fix GHSA-6fgx-x7m2-74qm

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

tracexec fixed: 0.14.0 
Upgrade tracexec to 0.14.0
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 tracexec

How to Check if You Are Affected

To determine whether your application is affected by GHSA-6fgx-x7m2-74qm, inspect your project dependencies for Tracexec:

inspect dependencies for tracexec

Analyze the terminal output to locate any version of Tracexec in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 0.14.0), 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-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection'), where the product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string. In Tracexec, 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 For tracexec's command line reconstruction feature, when a traced process executes another process with a environment variable where the key starts with a dash, tracexec incorrectly shows its commandline where such environment variables could cause argument injection for the `env` command. Such an injection is completely at the UI level unless the user tries to copy the command line with the injection and paste it into a terminal to execute it. A minimal POC is executing `env -- -a=b bash --norc` in tracexec's TUI mode. The resulting command line of `env` executing bash would be `env -a bash -a=b _=/usr/bin/env /usr/bin/bash --norc` in tracexec's TUI, which injects `-a=b` into `env`'s arguments. This has very limited effect for security. A local adversarial could leverage this to make tracexec show an inaccurate reconstructed commandline for their executed command. If the user of tracexec decides to copy and run the reconstructed commandline, there could be injection for `env`'s `--block-signal`, `--default-signal`, `--ignore-signal`, `--split-string`, `--unset`, `--chdir`, `--argv0` arguments. ### Patches The fix is https://github.com/kxxt/tracexec/pull/118. Users are advised to upgrade to 0.14.0. ### Workarounds Don't blindly paste and execute commands copied from tracexec that contains environment variable where the key starts with a dash.

GHSA-6fgx-x7m2-74qm Affected Tracexec Versions

1 component(s)
Fixed Versions:
0.14.0
Product / Package Ecosystem Affected Versions Fixed Version
tracexec
 crates.io
< 0.14.0
0.14.0

References

GitHub Advisory / Wiki ADVISORY
https://github.com/kxxt/tracexec/security/advisories/GHSA-6fgx-x7m2-74qm
Tracexec Source Repository REPOSITORY
https://github.com/kxxt/tracexec/pull/118
Security Fix Commit FIX COMMIT
https://github.com/kxxt/tracexec/commit/0dbe63214c8686df5bb62dbe6142cce27868ecff
Tracexec Source Repository REPOSITORY
https://github.com/kxxt/tracexec

Frequently Asked Questions

What is GHSA-6fgx-x7m2-74qm?
GHSA-6fgx-x7m2-74qm is a security vulnerability in Tracexec involving tracexec has `env` command argument injection via environment variables starting with dash in traced exec events under CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection').
Which Tracexec versions are affected?
Affected versions include releases prior to 0.14.0 across affected packages: tracexec.
What version fixes GHSA-6fgx-x7m2-74qm?
Upgrading to 0.14.0 (or the latest patched release for your respective branch) resolves the vulnerability.
Is tracexec affected?
Yes, tracexec is affected in releases prior to 0.14.0. Upgrade your dependency to 0.14.0 or later.
What CWE is associated with GHSA-6fgx-x7m2-74qm?
GHSA-6fgx-x7m2-74qm is classified under CWE-88: Improper Neutralization of Argument Delimiters in a Command ('Argument Injection') (The product constructs a string for a command to be executed by a separate component in another control sphere, but it does not properly delimit the intended arguments, options, or switches within that command string.).
How can I check crates.io dependencies for GHSA-6fgx-x7m2-74qm?
Run the dependency tree command: 'inspect dependencies for tracexec'. 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-6fgx-x7m2-74qm",
  "modified" : "2025-10-13T20:19:36Z",
  "published" : "2025-10-13T20:19:36Z",
  "aliases" : [ ],
  "summary" : "tracexec has `env` command argument injection via environment variables starting with dash in traced exec events",
  "details" : "### Impact\n\nFor tracexec's command line reconstruction feature, when a traced process executes another process with a environment variable where the key starts with a dash, tracexec incorrectly shows its commandline where such environment variables could cause argument injection for the `env` command.\nSuch an injection is completely at the UI level unless the user tries to copy the command line with the injection and paste it into a terminal to execute it.\n\nA minimal POC is executing `env -- -a=b bash --norc` in tracexec's TUI mode. The resulting command line of `env` executing bash would be `env -a bash -a=b  _=/usr/bin/env /usr/bin/bash --norc` in tracexec's TUI, which injects `-a=b` into `env`'s arguments.\n\nThis has very limited effect for security.  A local adversarial could leverage this to make tracexec show an inaccurate reconstructed commandline for their executed command. If the user of tracexec decides to copy and run the reconstructed commandline,\nthere could be injection for `env`'s `--block-signal`, `--default-signal`, `--ignore-signal`, `--split-string`, `--unset`, `--chdir`, `--argv0` arguments.\n\n### Patches\nThe fix is https://github.com/kxxt/tracexec/pull/118. Users are advised to upgrade to 0.14.0.\n\n### Workarounds\n\nDon't blindly paste and execute commands copied from tracexec that contains environment variable where the key starts with a dash.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:A/VC:L/VI:L/VA:L/SC:L/SI:L/SA:L"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "crates.io",
      "name" : "tracexec"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "0.14.0"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/kxxt/tracexec/security/advisories/GHSA-6fgx-x7m2-74qm"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kxxt/tracexec/pull/118"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/kxxt/tracexec/commit/0dbe63214c8686df5bb62dbe6142cce27868ecff"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/kxxt/tracexec"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-77", "CWE-88" ],
    "severity" : "LOW",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-10-13T20:19:36Z",
    "nvd_published_at" : null
  }
}