Technology · Apache
Apache Log4j vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 3 vulnerabilities in Apache Log4j: 0 in the last 7 days and 0 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2022-23305, was published on 21 January 2022.
- Last 7 days
- 0
- Last 90 days
- 0
- Critical, all time
- 2
- Exploited in the wild
- 0
About Apache Log4j
A Java-based logging utility used for generating log messages within applications.
Latest Apache Log4j vulnerabilities
- CVE-2022-23305: Apache Log4j SQL injection in JDBCAppendercriticalCVSS 9.8EPSS 66.5%
- CVE-2020-9488: Apache Log4j improper certificate validation in SMTP appenderlowCVSS 3.7EPSS 0.0%
- CVE-2019-17571: Apache Log4j deserialization in SocketServercriticalCVSS 9.8EPSS 69.1%
Most severe Apache Log4j vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2019-17571: Apache Log4j deserialization in SocketServercriticalCVSS 9.8EPSS 69.1%
- CVE-2022-23305: Apache Log4j SQL injection in JDBCAppendercriticalCVSS 9.8EPSS 66.5%
- CVE-2020-9488: Apache Log4j improper certificate validation in SMTP appenderlowCVSS 3.7EPSS 0.0%
Vulnerabilities per week
The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 29 Jun 2026 | 0 | 0 | |
| 6 Jul 2026 | 0 | 0 | |
| 13 Jul 2026 | 0 | 0 | |
| 20 Jul 2026 | 0 | 0 | |
| 27 Jul 2026 | 0 | 0 | |
| 3 Aug 2026 | 0 | 0 | |
| 10 Aug 2026 | 0 | 0 | |
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 0 | 0 | |
| 21 Sep 2026 | 0 | 0 |
How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/log4j.json, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Apache Log4j vulnerabilities", https://junglewise.ai/threats/technologies/log4j, 26 September 2026.