CVE-2022-0338Public exploit

Sensitive log disclosure via inherited file permissions

Published Jan 25, 2022 · Updated Aug 2, 2024

Sensitive-data exposure in Delgan Loguru before 0.5.3 allows local users to read application log files created with permissive modes. The file sink opens a requested log path through Python's built-in open function without setting a restrictive mode, so the process umask can leave the file world-readable. Exploitation requires local access to a host where the application writes secrets to such a file; the resulting impact is read-only disclosure of logged data.

CVSS severity4.3
Medium
EPSS probability0.76%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Sensitive-data exposure in Delgan Loguru before 0.5.3 allows local users to read application log files created with permissive modes. The file sink opens a requested log path through Python's built-in open function without setting a restrictive mode, so the process umask can leave the file world-readable. Exploitation requires local access to a host where the application writes secrets to such a file; the resulting impact is read-only disclosure of logged data.

The record

CVE
CVE-2022-0338
Published
Jan 25, 2022
Updated
Aug 2, 2024
Vendor
Delgan
Product
Loguru
Classifications
CWE-732, CWE-532, T1005
Attack vector
local
Privileges
authenticated

Timeline

How it unfolded

  1. Jan 25, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 2, 2024Record 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=unspecified <0.5.3

What conditions does exploitation require?

Attack vectorlocal
Required privilegesauthenticated

What is affected?

Delgan · Loguruversion=unspecified <0.5.3

Published CVSS scores

5.3GitHubCVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N
4.0NIST NVDAV:N/AC:L/Au:S/C:P/I:N/A:N
4.3NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
4.3huntr.devCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N
4.3GitHubCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/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.

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)
Vectorlocal
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-732Incorrect Permission Assignment for Critical Resource
CWE-532Insertion of Sensitive Information into Log File
T1005Data from Local System

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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