CVE-2024-28757

libexpat through 2.6.1 allows an XML Entity Expansion attack when there is isolated use of external parsers (created via XML_ExternalEntityParserCreate).

Published: Mar 10, 2024
Updated: May 4, 2025
CVE: CVE-2024-28757
Severity: High
Exploit:

CVSS v3:

Severity: High
Score: 7.5
AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWEs:

CWE-776

OWASP TOP 10:

A4 - XML External Entities (XXE)

Affected Software
References

Software	From	Fixed in
libexpat_project / libexpat	-	2.6.2
fedoraproject / fedora	38	38.x
fedoraproject / fedora	39	39.x
fedoraproject / fedora	40	40.x
netapp / ontap	9	9.x
netapp / ontap_tools	10	10.x

http://www.openwall.com/lists/oss-security/2024/03/15/1
https://github.com/libexpat/libexpat/issues/839
https://github.com/libexpat/libexpat/pull/842
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/FPLC6WDSRDUYS7F7JWAOVOHFNOUQ43DD/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/LKJ7V5F6LJCEQJXDBWGT27J7NAP3E3N7/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/VK2O34GH43NTHBZBN7G5Y6YKJKPUCTBE/
https://security.netapp.com/advisory/ntap-20240322-0001/

Vulnerability Database

289,599

CVE-2024-28757