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CVE-2026-19880

Path-traversal vulnerability in QOS.CH Sarl Logback-classic on Java (logback-classic module) allows path-traversal vulnerability. More specifically, an MDC-based discriminator value flows unsanitized...

Vulnerability Description

Path-traversal vulnerability in QOS.CH Sarl Logback-classic on Java (logback-classic module) allows path-traversal vulnerability. More specifically, an MDC-based discriminator value flows unsanitized into a nested FileAppender path, letting an attacker who influences that MDC value (e.g. via an HTTP header) create and append log files outside the intended directory. This issue affects Logback-classic: from 0.9.14 through 1.6.2.

Related Weaknesses (CWE)

CWE-22

References

FAQ

What is CVE-2026-19880?

CVE-2026-19880 is a documented vulnerability. Path-traversal vulnerability in QOS.CH Sarl Logback-classic on Java (logback-classic module) allows path-traversal vulnerability. More specifically, an MDC-based discriminator value flows unsanitized...

How severe is CVE-2026-19880?

CVSS scoring is not yet available for CVE-2026-19880. Check NVD for updates.

Is there a patch for CVE-2026-19880?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.