CVE-2026-86144
CVE-2026-86144
In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags. This has security relevance for, for example, the XML_PARSE_NONET flag, if (without it) a custom resource loader accesses the internet and triggers XML external entity injection, SSRF, or a denial of service (e.g., for an attacker-controlled internet resource that is intentionally slow).
CVSS v3 metric
CVSS v3 base score 5.6 (Medium). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L.
Weakness classification (CWE)
References
Frequently asked questions
- What is CVE-2026-86144?
- CVE-2026-86144 is a medium-severity vulnerability, classified under Incorrect Resource Transfer Between Spheres. CVSS score: 5.6/10. Published 2026-09-05.
- How severe is CVE-2026-86144?
- Medium severity. CVSS v3 base score is 5.6 out of 10.