2491184 – (CVE-2026-56407) CVE-2026-56407 libexpat: libexpat: Arbitrary code execution due to integer overflow

Bug 2491184 (CVE-2026-56407) - CVE-2026-56407 libexpat: libexpat: Arbitrary code execution due to integer overflow

Summary: CVE-2026-56407 libexpat: libexpat: Arbitrary code execution due to integer ov...

Keywords:
Status:	NEW
Alias:	CVE-2026-56407
Product:	Security Response
Classification:	Other
Component:	vulnerability
Sub Component:
Version:	unspecified
Hardware:	All
OS:	Linux
Priority:	medium
Severity:	medium
Target Milestone:	---
Assignee:	Product Security DevOps Team
QA Contact:
Docs Contact:
URL:
Whiteboard:
Depends On:	2508371 2508372
Blocks:
TreeView+	depends on / blocked

Attachments	(Terms of Use)

Description OSIDB Bzimport 2026-06-21 16:01:20 UTC

libexpat before 2.8.2 has an integer overflow in doProlog that is related to storeEntityValue and entity textLen.

Note You need to log in before you can comment on or make changes to this bug.