Use After Free in Tukaani-project Xz
CVE-2025-31115
XZ Utils provide a general-purpose data-compression library plus command-line tools. In XZ Utils 5.3.3alpha to 5.8.0, the multithreaded .xz decoder in liblzma has a bug where invalid input can at least result in a crash. The effects includ…
EPSS: 0.000 (12.8th percentile) — read the EPSS interpretation.
Affected products
- Tukaani-project Xz — versions >= 5.3.3alpha, < 5.8.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- security-advisories@github.com (x_refsource_CONFIRM)
- security-advisories@github.com (x_refsource_MISC)
- security-advisories@github.com (x_refsource_MISC)
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- af854a3a-2127-422b-91ae-364da2661108
- 0b142b55-0307-4c5a-b3c9-f314f3fb7c5e
Frequently asked questions
- What is CVE-2025-31115?
- CVE-2025-31115 is a vulnerability in Tukaani-project Xz, classified under Race Condition within a Thread. Published 2025-04-03.
- Is CVE-2025-31115 known to be exploited?
- 5 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.