CVE-2022-26520Public exploitNetwork attack vector

Arbitrary file write via untrusted logging properties

Published Mar 7, 2022 · Updated Aug 3, 2024

Arbitrary file write in pgjdbc 42.1.0 through 42.3.2 allows remote attackers to create files through untrusted connection properties. The driver passes attacker-controlled loggerFile and loggerLevel values to java.util.logging.FileHandler, which creates the named local file. Reachability requires an application to expose a complete JDBC URL or properties; a web-root JSP can execute code with the application's privileges.

CVSS severity9.8
Critical
EPSS probability3.00%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Arbitrary file write in pgjdbc 42.1.0 through 42.3.2 allows remote attackers to create files through untrusted connection properties. The driver passes attacker-controlled loggerFile and loggerLevel values to java.util.logging.FileHandler, which creates the named local file. Reachability requires an application to expose a complete JDBC URL or properties; a web-root JSP can execute code with the application's privileges.

The record

CVE
CVE-2022-26520
Published
Mar 7, 2022
Updated
Aug 3, 2024
Vendor
Unknown vendor
Product
Unknown product
Classifications
T1505.003
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 7, 2022CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 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?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

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.

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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)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

T1505.003Server Software Component: Web Shell

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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