CVE-2022-46255Network attack vector

Remote code execution via dirty Pages workspace

Published Dec 14, 2022 · Updated Apr 22, 2025

Path traversal in GitHub Enterprise Server 3.7.0 allows remote attackers to execute code through GitHub Pages content unpacking. Pages unpacked new content without first ensuring that its working directory was clean, allowing crafted path content to overwrite arbitrary files. The network-reachable path requires no user interaction, and a successful arbitrary file overwrite enables code execution on the appliance.

CVSS severity9.8
Critical
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

Path traversal in GitHub Enterprise Server 3.7.0 allows remote attackers to execute code through GitHub Pages content unpacking. Pages unpacked new content without first ensuring that its working directory was clean, allowing crafted path content to overwrite arbitrary files. The network-reachable path requires no user interaction, and a successful arbitrary file overwrite enables code execution on the appliance.

The record

CVE
CVE-2022-46255
Published
Dec 14, 2022
Updated
Apr 22, 2025
Vendor
Twitter
Product
GitHub Enterprise Server
Classifications
CWE-22, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 14, 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=3.7 <3.7.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Twitter · GitHub Enterprise Serverversion=3.7 <3.7.1

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
9.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/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 exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1190Exploit Public-Facing Application

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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