CVE-2022-26520

In pgjdbc before 42.3.3, an attacker (who controls the jdbc URL or properties) can call java.util.logging.FileHandler to write to arbitrary files through the loggerFile and loggerLevel connection properties. An example situation is that an attacker could create an executable JSP file under a Tomcat web root. NOTE: the vendor's position is that there is no pgjdbc vulnerability; instead, it is a vulnerability for any application to use the pgjdbc driver with untrusted connection properties

Published: 2022-03-10 Last update: 2024-11-21 Assigner: [email protected] Source: [email protected]

NVD Status：Modified，CVE State: published

View at NVD, CVE.org, EUVD

Threat Intelligence & Risk Assessment for CVE-2022-26520

EPSS CVSS GHSA Affected OS Tracker

Conclusion & alert: CVE-2022-26520 is rated High Risk (66.9/100): CVSS Critical severity, with medium exploitation likelihood (EPSS 1.14%). Mandatory action: High exploitation likelihood—assess exposure and prioritize remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2022-26520

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

#	Date	Old EPSS score	New EPSS score	Delta (New - Old)
1	2026-06-12	0.99%	1.14%	+0.14%
2	2026-06-08	1.28%	0.99%	-0.29%
3	2026-03-04	—	1.28%	—

Full EPSS history (28 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2022-26520

CVSS metrics for this CVE.

Base score	Version	Severity	Vector	Exploitability	Impact	Score source
9.8	3.1	CRITICAL	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.	3.9	5.9	[email protected]
7.5	2.0	HIGH	`AV:N/AC:L/Au:N/C:P/I:P/A:P` Click to expand Access vector (AV:N) Can be exploited remotely over network reachability. Access complexity (AC:L) Exploitation conditions are straightforward and predictable. Authentication (AU:N) No authentication is required. Confidentiality impact (C:P) Partial confidentiality impact. Integrity impact (I:P) Partial integrity impact. Availability impact (A:P) Partial availability impact.	10.0	6.4	[email protected]

Weakness enumeration for CVE-2022-26520

GitHub Security Advisory for CVE-2022-26520

GHSA-727h-hrw8-jg8q · Severity: low · Ecosystem: maven — Path traversal in org.postgresql:postgresql

OS Trackers for CVE-2022-26520

vendor	priority	summary	link
`debian`	not yet assigned	CVE-2022-26520 not yet assigned priority: Debian including 1 source packages (libpgjava), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5.	https://security-tracker.debian.org/tracker/CVE-2022-26520
`redhat`	medium	—	https://access.redhat.com/security/cve/CVE-2022-26520
`suse`	medium	—	https://www.suse.com/security/cve/CVE-2022-26520/
`ubuntu`	medium	CVE-2022-26520 medium priority: Ubuntu including 1 source packages (libpgjava), 11 status rows across 11 suites (bionic, focal, impish, jammy, kinetic, lunar, mantic, noble, trusty, upstream, xenial): not-affected 9, ignored 1, released 1.	https://ubuntu.com/security/CVE-2022-26520

Affected software / configurations for CVE-2022-26520

Vendor	Product	Version	Raw CPE
postgresql	postgresql_jdbc_driver	>= 42.1.0, <= 42.1.4	cpe:2.3:a:postgresql:postgresql_jdbc_driver::::::::
postgresql	postgresql_jdbc_driver	>= 42.3.0, < 42.3.3	cpe:2.3:a:postgresql:postgresql_jdbc_driver::::::::
debian	debian_linux	10.0	cpe:2.3:o:debian:debian_linux:10.0:::::::*
debian	debian_linux	11.0	cpe:2.3:o:debian:debian_linux:11.0:::::::*

References for CVE-2022-26520

URL	Tags
https://github.com/pgjdbc/pgjdbc/pull/2454/commits/017b929977b4f85795f9ad2fa5de6e80978b8ccc	Patch Third Party Advisory
https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-673j-qm5f-xpv8	Third Party Advisory
https://jdbc.postgresql.org/documentation/changelog.html#version_42.3.3	Release Notes Vendor Advisory
https://jdbc.postgresql.org/documentation/head/tomcat.html	Vendor Advisory
https://www.debian.org/security/2022/dsa-5196	Third Party Advisory

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