IM
IronMonkey Threat Research

CVE-2026-45186 HIGH

Published: 2026-05-10 | Last Modified: 2026-09-16 | Status: Modified

Description

In libexpat before 2.8.1, the computational complexity of attribute name collision checks allows a denial of service via moderately sized crafted XML input.

Additional Descriptions (1)

En libexpat antes de 2.8.1, la complejidad computacional de las comprobaciones de colisión de nombres de atributos permite una denegación de servicio a través de una entrada XML manipulada de tamaño moderado.

CVSS Metrics

Base Score: 7.5 (HIGH)

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

Attack VectorNETWORK
Attack ComplexityLOW
Privileges RequiredNONE
User InteractionNONE
ScopeUNCHANGED
Confidentiality ImpactNONE
Integrity ImpactNONE
Availability ImpactHIGH

Source: [email protected]

Type: Primary

Exploitability Score: 3.9

Impact Score: 3.6

Weaknesses

Source Type Description
[email protected] Secondary
en CWE-407
0b0ca135-0b70-47e7-9f44-1890c2a1c46c Secondary
en CWE-407

Affected Products

Vendor Product Version Update Type
libexpat_project libexpat * <built-in method update of dict object at 0x7fd36a636380> Application

Affected Configurations

Operator: OR

Vulnerable CPE
Yes cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*

References