highVulnerability

GHSA-8h3q-9fpp-c883

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-36p8-mvp6-cv38. This link is maintained to preserve external references. ## Original Description SummaryA command injection vulnerability (CWE-78) has been found to exist in the `wrangler pages deploy` command. The issue occurs because the `--commit-hash` parameter is passed directly to a shell command without proper validation or sanitization, allowing an attacker with control of `--commit-hash` to execute arbitrary commands on the system running Wrangler. Root causeThe commitHash variable, derived from user input via the --commit-hash CLI argument, is interpolated directly into a shell command using template literals (e.g.,  execSync(`git show -s --format=%B ${commitHash}`)). Shell metacharacters are interpreted by the shell, enabling command execution. ImpactThis vulnerability is generally hard to exploit, as it requires --commit-hash to be attacker controlled. The vulnerability primarily affects CI/CD environments where `wrangler pages deploy` is used in automated pipelines and the --commit-hash parameter is populated from external, potentially untrusted sources. An attacker could exploit this to: * Run any shell command. * Exfiltrate environment variables. * Compromise the CI runner to install backdoors or modify build artifacts. Credits Disclosed responsibly by kny4hacker. Mitigation * Wrangler v4 users are requested to upgrade to Wrangler v4.59.1 or higher. * Wrangler v3 users are requested to upgrade to Wrangler v3.114.17 or higher. * Users on Wrangler v2 (EOL) should upgrade to a supported major version.

Properties

ghsa_id
GHSA-8h3q-9fpp-c883
summary
Duplicate Advisory: Wrangler affected by OS Command Injection in `wrangler pages deploy`
severity
high
cve_id
GHSA-8h3q-9fpp-c883
is_ghsa_only
true
ghsa_published
2026-01-21T00:31:43Z
source_url
https://github.com/advisories/GHSA-8h3q-9fpp-c883
ghsa_updated
2026-01-29T03:38:37Z

Related Entities (3)

HAS_WEAKNESS (1)

[Weakness]Improper Input Validation

REPORTED_BY (1)

[Source]GitHub Advisory Database

AFFECTS (1)

[Software]npm/wrangler

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