CVE-2026-86144
Low
No strong exploitation signal.
CVSS base
5.6
MEDIUM
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
EPSS — probability of exploitation (30 days)
0.2%
7.5th percentile
CISA KEV
Not listed
Weakness / dates
CWE-669
Published 2026-09-05 · modified 2026-09-15
CVSS breakdown
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:L/I:L/A:L
| Attack Vector | L | Local |
| Attack Complexity | H | High |
| Privileges Required | N | None |
| User Interaction | N | None |
| Scope | C | Changed |
| Confidentiality | L | Low |
| Integrity | L | Low |
| Availability | L | Low |
Timeline
- 2026-09-05 — Published (NVD)
- 2026-09-15 — Last modified (NVD)
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).