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.
Published: 2026-05-10
Score: 2.9 Low
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

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Tracking

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History

Mon, 11 May 2026 23:30:00 +0000

Type Values Removed Values Added
References

Mon, 11 May 2026 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

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


Sun, 10 May 2026 07:45:00 +0000

Type Values Removed Values Added
Title Denial of Service via Attribute Name Collision in libexpat

Sun, 10 May 2026 06:45:00 +0000

Type Values Removed Values Added
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.
First Time appeared Libexpat Project
Libexpat Project libexpat
Weaknesses CWE-407
CPEs cpe:2.3:a:libexpat_project:libexpat:*:*:*:*:*:*:*:*
Vendors & Products Libexpat Project
Libexpat Project libexpat
References
Metrics cvssV3_1

{'score': 2.9, 'vector': 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L'}


Subscriptions

Libexpat Project Libexpat
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2026-05-11T22:23:27.385Z

Reserved: 2026-05-10T06:36:15.697Z

Link: CVE-2026-45186

cve-icon Vulnrichment

Updated: 2026-05-11T22:23:27.385Z

cve-icon NVD

Status : Analyzed

Published: 2026-05-10T07:16:07.883

Modified: 2026-05-14T17:20:32.570

Link: CVE-2026-45186

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-10T08:00:07Z

Weaknesses