Medium [CVE-2026-86144] Information disclosure, SSRF, or denial of service due to improper parseFlags propagation.
This medium-severity Red Hat Linux advisory covers CVE-2026-86144 affecting Red Hat Hardened Images.
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Summary
A flaw was found in libxml2's xinclude processing. The xmlXIncludeProcess and xmlXIncludeProcessTree functions fail to propagate parseFlags, such as XML_PARSE_NONET.
This oversight can allow a custom resource loader to access external internet resources, potentially leading to XML external entity (XXE) injection, Server-Side Request Forgery (SSRF), or a denial of service (DoS) if an attacker controls the external resource. Red Hat severity: Moderate — CVSS 5.6 (CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L).
Weakness: CWE-611. Affected Red Hat products: Red Hat Hardened Images.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
Mitigation
The source record does not include mitigation steps. That is not a statement that no fix exists — read the vendor advisory below for the authoritative guidance.
Official advisory · medium-confidence parse· fetched 2 hours ago·verify at source
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