CVE-2022-39205Public exploitNetwork attack vector

Unauthenticated code execution via spoofed proxy header

Published Sep 13, 2022 · Updated Apr 22, 2025

Improper authentication in OneDev before 7.3.0 allows remote attackers to execute arbitrary code through a Git hook callback endpoint. The pre-receive callback trusts X-Forwarded-For as proof of loopback origin and passes query-controlled environment variables to Git commands. Exposure without a reverse proxy that overwrites the header permits arbitrary file writes and complete server takeover.

CVSS severity9.0
Critical
EPSS probability2.35%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authentication in OneDev before 7.3.0 allows remote attackers to execute arbitrary code through a Git hook callback endpoint. The pre-receive callback trusts X-Forwarded-For as proof of loopback origin and passes query-controlled environment variables to Git commands. Exposure without a reverse proxy that overwrites the header permits arbitrary file writes and complete server takeover.

The record

CVE
CVE-2022-39205
Published
Sep 13, 2022
Updated
Apr 22, 2025
Vendor
OneDev Pty
Product
OneDev
Classifications
CWE-287, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 13, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 22, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

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

  1. Affected versionversion=< 7.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OneDev Pty · OneDevversion=< 7.3.0

Published CVSS scores

9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.0GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-287Improper Authentication
T1190Exploit Public-Facing Application

Public exploit references

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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