CVE-2022-31072

Local code tampering via world-writable gem files

Published Jun 15, 2022 · Updated Apr 23, 2025

Incorrect default permissions in Octokit.rb 4.23.0 and 4.24.0 allow local users to modify installed Ruby library files. The release packaging process preserved mode 0666 on files in the gem instead of owner-only write permission mode 0644. Exploitation requires separate malicious code already running with local access, and modified library files can change the gem's runtime behavior.

CVSS severity2.5
Low
EPSS probability0.25%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Incorrect default permissions in Octokit.rb 4.23.0 and 4.24.0 allow local users to modify installed Ruby library files. The release packaging process preserved mode 0666 on files in the gem instead of owner-only write permission mode 0644. Exploitation requires separate malicious code already running with local access, and modified library files can change the gem's runtime behavior.

The record

CVE
CVE-2022-31072
Published
Jun 15, 2022
Updated
Apr 23, 2025
Vendor
Octokit
Product
Octokit.rb
Classifications
CWE-276
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jun 15, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 23, 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=>= 4.23.0, < 4.25.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Octokit · Octokit.rbversion=>= 4.23.0, < 4.25.0

Published CVSS scores

3.3NIST NVDCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
2.5GitHub, Inc.CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:N
2.1NIST NVDAV:L/AC:L/Au:N/C:N/I:P/A: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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-276Incorrect Default Permissions

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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