CVE-2026-86144In xinclude in libxml2 before 2.15.4, xmlXIncludeProcess and xmlXIncludeProcessTree do not propagate parseFlags.
Updated under an hour ago ()
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It affects xmlsoft libxml2. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 5.6 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
- Weakness (CWE)
- CWE-669
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- mitre
- NVD analysis
- Analyzed
- Record last updated
- Sep 8, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
xmlsoft libxml2 xmlsoft:libxml2 (from the name) | before 2.15.4 | CNA record |
xmlsoft libxml2 xmlsoft:libxml2 | before 2.15.4 | NVD |
References
- https://github.com/GNOME/libxml2/compare/v2.15.3...v2.15.4release-notes
- https://github.com/GNOME/libxml2/commit/b63cd517afecb76582dd9488c55e54ceaf50de61patch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.