2491186 – (CVE-2026-56403) CVE-2026-56403 libexpat: libexpat: Arbitrary code execution due to integer overflow in storeAtts

Bug 2491186 (CVE-2026-56403) - CVE-2026-56403 libexpat: libexpat: Arbitrary code execution due to integer overflow in storeAtts

Summary: CVE-2026-56403 libexpat: libexpat: Arbitrary code execution due to integer ov...

Keywords:
Status:	NEW
Alias:	CVE-2026-56403
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:
Blocks:
TreeView+	depends on / blocked

Attachments	(Terms of Use)

Description OSIDB Bzimport 2026-06-21 16:01:25 UTC

libexpat before 2.8.2 has an integer overflow in storeAtts.

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