7.5

CVE-2026-45186

Exploit
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.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Libexpat Project ≫ Libexpat Version < 2.8.1
VulnDex Vulnerability Enrichment
Diese Information steht angemeldeten Benutzern zur Verfügung. Login Login
Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.44% 0.362
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
NIST 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
MITRE 2.9 1.4 1.4
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
0b0ca135-0b70-47e7-9f44-1890c2a1c46c 7.5 3.9 3.6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
CWE-407 Inefficient Algorithmic Complexity

An algorithm in a product has an inefficient worst-case computational complexity that may be detrimental to system performance and can be triggered by an attacker, typically using crafted manipulations that ensure that the worst case is being reached.

https://github.com/libexpat/libexpat/pull/1216
Patch
Exploit
Issue Tracking
http://www.openwall.com/lists/oss-security/2026/05/11/16
Third Party Advisory
Mailing List
https://cert-portal.siemens.com/productcert/html/ssa-082556.html
https://bugzilla.redhat.com/show_bug.cgi?id=2468575
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-45186.json
https://access.redhat.com/errata/RHSA-2026:26319
https://access.redhat.com/errata/RHSA-2026:29197
https://access.redhat.com/errata/RHSA-2026:27201
https://access.redhat.com/errata/RHSA-2026:22715
https://access.redhat.com/errata/RHSA-2026:22721
https://access.redhat.com/errata/RHSA-2026:23230
https://access.redhat.com/security/cve/CVE-2026-45186
https://access.redhat.com/errata/RHSA-2026:58981