CVE-2026-86144

7.8 highEPSS 0.2%

High (7.8) in xmlsoft libxml2. EPSS 0.2% chance of exploitation in the next 30 days.

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).

Severity

CVSS 3.1

7.8 high

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS: 0.2% chance of exploitation in the next 30 days; higher than 8% of CVEs (scores of 2026-10-31)
CWE: CWE-669
Published: 2026-09-05
Modified: 2026-09-15
Record from: the NVD, synced 2026-10-19

Affected

xmlsoft:libxml2

References

https://github.com/GNOME/libxml2/commit/b63cd517afecb76582dd9488c55e54ceaf50de61
https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4

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