GHSA-6fgx-x7m2-74qm

Source

https://github.com/advisories/GHSA-6fgx-x7m2-74qm

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-6fgx-x7m2-74qm/GHSA-6fgx-x7m2-74qm.json

JSON Data

https://api.osv.dev/v1/vulns/GHSA-6fgx-x7m2-74qm

Published

2025-10-13T20:19:36Z

Modified

2025-10-13T20:19:36Z

Severity

1.0 (Low) CVSS_V4 - 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 CVSS Calculator

Summary

tracexec has `env` command argument injection via environment variables starting with dash in traced exec events

Details

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.

Database specific

{
    "cwe_ids":  [
        "CWE-77",
        "CWE-88"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2025-10-13T20:19:36Z",
    "nvd_published_at":  null,
    "severity":  "LOW"
}

References

Affected packages

crates.io / tracexec

Package

Name: tracexec; View open source insights on deps.dev
Purl: pkg:cargo/tracexec

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

0.14.0

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2025/10/GHSA-6fgx-x7m2-74qm/GHSA-6fgx-x7m2-74qm.json"