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).
History

Tue, 08 Sep 2026 14:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Tue, 08 Sep 2026 00:15:00 +0000

Type Values Removed Values Added
Title XInclude Parse Flags Not Propagated, Enabling XML External Entity, SSRF, or DoS in libxml2 libxml2: libxml2: Information disclosure, SSRF, or denial of service due to improper parseFlags propagation.
Weaknesses CWE-611
References
Metrics threat_severity

None

threat_severity

Moderate


Sat, 05 Sep 2026 05:45:00 +0000

Type Values Removed Values Added
Title XInclude Parse Flags Not Propagated, Enabling XML External Entity, SSRF, or DoS in libxml2

Sat, 05 Sep 2026 04:45:00 +0000

Type Values Removed Values Added
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).
First Time appeared Xmlsoft
Xmlsoft libxml2
Weaknesses CWE-669
CPEs cpe:2.3:a:xmlsoft:libxml2:*:*:*:*:*:*:*:*
Vendors & Products Xmlsoft
Xmlsoft libxml2
References
Metrics cvssV3_1

{'score': 5.6, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L'}


cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published: 2026-09-05T04:34:43.972Z

Updated: 2026-09-08T13:04:51.845Z

Reserved: 2026-09-05T04:34:43.632Z

Link: CVE-2026-86144

cve-icon Vulnrichment

Updated: 2026-09-08T13:04:47.388Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-09-05T05:17:13.407

Modified: 2026-09-08T21:14:09.040

Link: CVE-2026-86144

cve-icon Redhat

Severity : Moderate

Publid Date: 2026-09-05T04:34:43Z

Links: CVE-2026-86144 - Bugzilla