CVE-2022-26520

CRITICALNVD 9.89.8—
EchelonGraph scoreMEDIUM confidence

This critical-severity CVE scores 9.8 under NVD CVSS v3. EPSS exploit probability: 3.0%, top 14% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
Trending — 3 sources updated this week
9.8
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS: 3%CVSS: 9.8Exploit: NoneExposed: 0

A fix is available — apply it.

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

CVSS v3
9.8
EG Score
9.8(medium)
EG Risk
50(Track)
EG Risk 50/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity98% × 45%
Exploitation3% × 40%
Automatability30% × 15%
Action: Routine — remediate on your standard cadence.
EPSS
85.9%
KEV
Not listed

Published

March 10, 2022

Last Modified

November 21, 2024

Advisory Details (3)

Auto-updated May 26, 2026
Patch available. Sources: github_pr, github.
generic

[SECURITY] [DSA 5196-1] libpgjava security update

https://www.debian.org/security/2022/dsa-5196
github Patch Available

Arbitrary File Write Vulnerability · Advisory · pgjdbc/pgjdbc · GitHub

Affected: 42.3.3

https://github.com/pgjdbc/pgjdbc/security/advisories/GHSA-673j-qm5f-xpv8
github_pr Patch Available

fix javadocs

Patch available: pgjdbc/pgjdbc REL42.5.2 (PR #2454 merged 2022-02-15)

https://github.com/pgjdbc/pgjdbc/pull/2454/commits/017b929977b4f85795f9ad2fa5de6e80978b8ccc

Vendor Advisories for CVE-2022-26520(3)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(1)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatjdbc-postgresql2022-10-06redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(1 across 1 ecosystem)
Maven(1)
PackageVulnerable rangeFixed inDependents
org.postgresql:postgresql42.1.0 ... 42.3.2 (104 versions)42.3.3—

Data Freshness Timeline

(refreshed 14× in last 7d / 43× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-07-23 02:09 UTCEG score recompute
  2. 2026-07-22 22:56 UTCEG score recompute
  3. 2026-07-22 14:06 UTCEPSS rescore
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  1. 2026-07-06 16:25 UTCEPSS rescore
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  9. 2026-06-29 18:53 UTCOSV refresh
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  36. 2026-06-12 07:06 UTCOSV refresh
  37. 2026-06-11 13:58 UTCEPSS rescore
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  70. 2026-05-26 07:17 UTCEPSS rescore
  71. 2026-05-26 01:50 UTCEG score recompute
  72. 2026-05-26 01:50 UTCVendor advisory

Related CVEs(same vendor)

Frequently asked(5)

What is CVE-2022-26520?
CVE-2022-26520 is a critical vulnerability published on March 10, 2022. 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…
When was CVE-2022-26520 disclosed?
CVE-2022-26520 was first published in the National Vulnerability Database on March 10, 2022, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2022-26520 actively exploited?
CVE-2022-26520 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 85.9% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.
What is the CVSS score of CVE-2022-26520?
CVE-2022-26520 has a CVSS v3 base score of 9.8 (NVD).
How do I remediate CVE-2022-26520?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2022-26520, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

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