CVE-2026-86144: CWE-669 Incorrect Resource Transfer Between Spheres in xmlsoft libxml2
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).
CVE-2026-86144: CWE-669 Incorrect Resource Transfer Between Spheres in xmlsoft libxml2
Description
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 v3.1
Score 5.6medium
Weaknesses
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-09-05T04:34:43.632Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a9ba028acd9273b49557a57
Added to database: 09/05/2026, 04:52:56 UTC
Last updated: 09/05/2026, 06:07:20 UTC
Views: 5
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