CVE-2024-8176
What it is
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.
At a glance
- Exploitability
- Can be exploited over the network without logging in. High risk of service disruption.
- Exploit odds
- 1.4% chance of exploitation in the next 30 days (EPSS).
- Fix
- A patch, advisory or fixed version is referenced. Upgrade or apply it.
Timeline
- PublishedDisclosed publicly on CVE.org and NVD
- Last updatedMost recent change to the record
Why it ranks here
- Exploited in the wild: no, CISA does not list it.
- Exploit odds: 1.4% in the next 30 days (EPSS).
- Severity: 7.5 HIGH (CVSS).
- Fix: a patch or advisory is linked.
Details
- Published
- Last modified
- Exploit probability
- 1.4% · EPSS, next 30 days
- Weakness
- CWE-674
- Record status
- Deferred
Attack profile CVSS 3.1 · 7.5
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- None
- Scope
- Unchanged
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Raw vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Is it in your code?
Hand this to your coding agent. It searches your project for the affected products and checks versions. Nothing leaves your machine.
Read https://cve-list.com/agent/cve/CVE-2024-8176.md and follow it. Check whether this project is affected by CVE-2024-8176. Read only. Don't change anything and don't upload my code. Tell me yes, no or not sure, with the file as proof.
Fix and advisories
- https://github.com/libexpat/libexpat/pull/973
- https://gitlab.alpinelinux.org/alpine/aports/-/commit/d068c3ff36fc6f4789988a09c69b434db757db53
References
- https://access.redhat.com/errata/RHSA-2025:13681
- https://access.redhat.com/errata/RHSA-2025:22033
- https://access.redhat.com/errata/RHSA-2025:22034
- https://access.redhat.com/errata/RHSA-2025:22035
- https://access.redhat.com/errata/RHSA-2025:22607
- https://access.redhat.com/errata/RHSA-2025:22785
- https://access.redhat.com/errata/RHSA-2025:22842
- https://access.redhat.com/errata/RHSA-2025:22871
- https://access.redhat.com/errata/RHSA-2025:3531
- https://access.redhat.com/errata/RHSA-2025:3734
- https://access.redhat.com/errata/RHSA-2025:3913
- https://access.redhat.com/errata/RHSA-2025:4048
- https://access.redhat.com/errata/RHSA-2025:4446
- https://access.redhat.com/errata/RHSA-2025:4447
- https://access.redhat.com/errata/RHSA-2025:4448
- https://access.redhat.com/errata/RHSA-2025:4449
- https://access.redhat.com/errata/RHSA-2025:7444
- https://access.redhat.com/errata/RHSA-2025:7512
- https://access.redhat.com/errata/RHSA-2025:8385
- https://access.redhat.com/security/cve/CVE-2024-8176
- https://bugzilla.redhat.com/show_bug.cgi?id=2310137
- https://github.com/libexpat/libexpat/issues/893
- https://github.com/libexpat/libexpat/pull/973
- http://seclists.org/fulldisclosure/2025/May/10
- http://seclists.org/fulldisclosure/2025/May/11