libexpat through 2.5.0 allows a denial of service (resource consumption) because many full reparsings are required in the case of a large token for which multiple buffer fills are needed.
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/WNUBSGZFEZOBHJFTAD42SAN4ATW2VEMV/
https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/PNRIHC7DVVRAIWFRGV23Y6UZXFBXSQDB/
https://www.cisa.gov/news-events/ics-advisories/icsa-24-228-06
https://security.netapp.com/advisory/ntap-20240614-0003/
https://lists.debian.org/debian-lts-announce/2024/04/msg00006.html
https://github.com/libexpat/libexpat/pull/789
http://www.openwall.com/lists/oss-security/2024/03/20/5
Source: Mitre, NVD
Published: 2024-02-04
Updated: 2024-08-26
Base Score: 7.8
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C
Severity: High
Base Score: 7.5
Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
EPSS: 0.02046