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NVD Vulnerability Details :

CVE-2026-56409

Analyzed

Source-cve@mitre.org

Published At-21 Jun, 2026 | 16:16

Updated At-23 Jun, 2026 | 16:21

xmlwf in libexpat before 2.8.2 has an integer overflow for the output filename when -d outputDir is used.

Date Added	Due Date	Vulnerability Name	Required Action
	N/A

Type	Version	Base score	Base severity	Vector
Secondary	3.1	6.5	MEDIUM	CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L
			N/A

Type: Secondary

Version: 3.1

Base score: 6.5

Base severity: MEDIUM

Vector:

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:H/I:H/A:L

Type: N/A

Version:

Base score:

Base severity: N/A

Vector:

libexpat_project>>libexpat>>Versions before 2.8.2(exclusive)

CWE ID	Type	Source
CWE-190	Secondary	cve@mitre.org

CWE ID: CWE-190

Type: Secondary

Source: cve@mitre.org

Hyperlink	Source	Resource
https://github.com/libexpat/libexpat/pull/1259	cve@mitre.org	Patch Issue Tracking

Hyperlink: https://github.com/libexpat/libexpat/pull/1259

Source: cve@mitre.org

Resource:

Patch

Issue Tracking