CVE-2026-0933Network attack vector

Command execution via shell-interpolated commit hash

Published Jan 20, 2026 · Updated Jan 20, 2026

OS command injection in Cloudflare Wrangler 2.0.15 through 3.114.16 and 4.0.0 through 4.59.0 allows attackers to execute commands. The pages deploy path interpolates the untrusted --commit-hash value into an execSync git command, allowing shell metacharacters to alter the command. Exploitation requires attacker control of that CLI argument, principally through an automated CI/CD pipeline, and grants the runner process's command privileges.

CVSS severity7.7
High
EPSS probability1.45%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

OS command injection in Cloudflare Wrangler 2.0.15 through 3.114.16 and 4.0.0 through 4.59.0 allows attackers to execute commands. The pages deploy path interpolates the untrusted --commit-hash value into an execSync git command, allowing shell metacharacters to alter the command. Exploitation requires attacker control of that CLI argument, principally through an automated CI/CD pipeline, and grants the runner process's command privileges.

The record

CVE
CVE-2026-0933
Published
Jan 20, 2026
Updated
Jan 20, 2026
Vendor
Cloudflare
Product
Wrangler
Classifications
CWE-20, CWE-78, T1059
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Jan 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

Compare your product and version with the public record. A matching version still requires validation against your environment.

Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=v2.0.15+
  2. Affected versionversion=v3.0.0 <=v3.114.16
  3. Affected versionversion=v4.0.0 <=v4.59.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Cloudflare · Wranglerversion=v2.0.15+; version=v3.0.0 <=v3.114.16; version=v4.0.0 <=v4.59.0

Published CVSS scores

9.9NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
7.7Cloudflare, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:L/SI:L/SA:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-20Improper Input Validation
CWE-78Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')
T1059Command and Scripting Interpreter

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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