CVE-2024-8176

Libexpat: expat: improper restriction of xml entity expansion depth in libexpat

HIGH
7.5
CVSS Score
Published: March 14, 2025 at 08:19 AM UTC
Updated: October 21, 2026 at 09:17 PM UTC
4 products affected across 2 vendorsJBoss Core ServicesEnterprise LinuxOpenShift Container Platform

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Severity
HIGH7.5
Exploit prediction
EPSS 1%
SSVC
PoC

Description

A stack overflow vulnerability exists in the libexpat library due to the way it handles recursive entity expansion in XML documents. When parsing an XML document with deeply nested entity references, libexpat can be forced to recurse indefinitely, exhausting the stack space and causing a crash. This issue could lead to denial of service (DoS) or, in some cases, exploitable memory corruption, depending on the environment and library usage.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

All versions8
Vendor states this is fixed in 0:1.51.0-11.el8_10 (unaffected)
Vendor states this is fixed in 0:1.51.0-5.el8_2.2 (unaffected)
Vendor states this is fixed in 0:1.51.0-5.el8_4.2 (unaffected)
Vendor states this is fixed in 0:1.51.0-6.el8_6.1 (unaffected)
Vendor states this is fixed in 0:1.51.0-8.el8_8.1 (unaffected)
Vendor states this is fixed in 0:2.2.10-1.el8_2 (unaffected)
Vendor states this is fixed in 0:2.2.10-1.el8_4 (unaffected)
Vendor states this is fixed in 0:2.2.10-1.el8_6 (unaffected)
Vendor states this is fixed in 0:2.2.10-1.el8_8 (unaffected)
Vendor states this is fixed in 0:2.2.10-12.el9_0.4 (unaffected)
Vendor states this is fixed in 0:2.2.5-17.el8_10 (unaffected)
Vendor states this is fixed in 0:2.5.0-1.el9_2.3 (unaffected)
Vendor states this is fixed in 0:2.5.0-2.el9_4.3 (unaffected)
Vendor states this is fixed in 0:2.5.0-3.el9_5.3 (unaffected)
Vendor states this is fixed in 0:2.5.0-5.el9_6 (unaffected)
Vendor states this is fixed in 0:2.7.1-1.el10_0 (unaffected)
Vendor states this is fixed in 8 (unaffected)
Vendor states this is fixed in 6 (unknown)
Vendor states this is fixed in 7 (unknown)

References (41)

SSVC — Action Prioritization

SSVCPoCAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHredhat
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-674

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