CVE-2026-1225
CVE-2026-1225 is a low-severity vulnerability with a CVSS 4.0 base score of 1.8. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-20.
Key facts
- Severity: Low (CVSS 4.0 base score 1.8)
- EPSS exploit prediction: 0% (5th percentile)
- Actively exploited: Not listed in CISA KEV
- EU (EUVD) id: EUVD-2026-4130
- Weakness: CWE-20
- Published:
- Last modified:
Description
ACE vulnerability in configuration file processing by QOS.CH logback-core up to and including version 1.5.24 in Java applications, allows an attacker to instantiate classes already present on the class path by compromising an existing logback configuration file. The instantiation of a potentially malicious Java class requires that said class is present on the user's class-path. In addition, the attacker must have write access to a configuration file. However, after successful instantiation, the instance is very likely to be discarded with no further ado.
Frequently asked questions
- What is CVE-2026-1225?
- ACE vulnerability in configuration file processing by QOS.CH logback-core up to and including version 1.5.24 in Java applications, allows an attacker to instantiate classes already present on the class path by compromising an existing logback configuration file. The instantiation of a potentially malicious Java class requires that said class is present on the user's class-path. In addition, the attacker must have write access to a configuration file. However, after successful instantiation, the instance is very likely to be discarded with no further ado.
- How severe is CVE-2026-1225?
- CVE-2026-1225 has a CVSS 4.0 base score of 1.8, rated low severity.
- Is CVE-2026-1225 being actively exploited?
- It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (5th percentile), an estimate of the probability of exploitation in the next 30 days.
- How do I fix CVE-2026-1225?
- Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
- Does CVE-2026-1225 have an EU (EUVD) identifier?
- Yes. CVE-2026-1225 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2026-4130.
- When was CVE-2026-1225 published?
- CVE-2026-1225 was published on 2026-01-22 and last updated on 2026-06-17.
References
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