CVE-2024-8176
Libexpat: expat: improper restriction of xml entity expansion depth in libexpat
02 Description
Libexpat: expat: improper restriction of xml entity expansion depth in libexpat
03 Exploitation and scoring
- Exploitation
- Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.
- SSVC decision
- ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
- AutomatableyesAn attacker can reliably automate reconnaissance through exploitation, so this scales.
- Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.
- EPSS probability
- 1.35% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 71.3% of scored records. A rank, not a probability.
- NVD base score
- 7.5 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- NVD analysis status
- Deferred. NVD last modified this record on 2026-10-21.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2025-03-14 08:19Z1 YR AGO
- Last updated
- 2026-10-21 20:11Z7 DAYS AGO
- Reserved
- 2024-08-26
- Assigning CNA
- redhat
- Record state
- PUBLISHED
- Severity
- High (CVSS 7.5)
- CNA CVSS vector
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Weaknesses
- CWE-674Uncontrolled RecursionClass
- Data version
- 5.2
- Document digest
- 35a5da92378ebae6c165cbe2c719a98575758bb8431b02ef7a639dda1df5ecac
05 Affected products
06 References
- access.redhat.comRHSA-2025:13681https://access.redhat.com/errata/RHSA-2025:13681
- access.redhat.comRHSA-2025:22033https://access.redhat.com/errata/RHSA-2025:22033
- access.redhat.comRHSA-2025:22034https://access.redhat.com/errata/RHSA-2025:22034
- access.redhat.comRHSA-2025:22035https://access.redhat.com/errata/RHSA-2025:22035
- access.redhat.comRHSA-2025:22607https://access.redhat.com/errata/RHSA-2025:22607
- access.redhat.comRHSA-2025:22785https://access.redhat.com/errata/RHSA-2025:22785
- access.redhat.comRHSA-2025:22842https://access.redhat.com/errata/RHSA-2025:22842
- access.redhat.comRHSA-2025:22871https://access.redhat.com/errata/RHSA-2025:22871
- access.redhat.comRHSA-2025:3531https://access.redhat.com/errata/RHSA-2025:3531
- access.redhat.comRHSA-2025:3734https://access.redhat.com/errata/RHSA-2025:3734
- access.redhat.comRHSA-2025:3913https://access.redhat.com/errata/RHSA-2025:3913
- access.redhat.comRHSA-2025:4048https://access.redhat.com/errata/RHSA-2025:4048
- access.redhat.comRHSA-2025:4446https://access.redhat.com/errata/RHSA-2025:4446
- access.redhat.comRHSA-2025:4447https://access.redhat.com/errata/RHSA-2025:4447
- access.redhat.comRHSA-2025:4448https://access.redhat.com/errata/RHSA-2025:4448
- access.redhat.comRHSA-2025:4449https://access.redhat.com/errata/RHSA-2025:4449
- access.redhat.comRHSA-2025:7444https://access.redhat.com/errata/RHSA-2025:7444
- access.redhat.comRHSA-2025:7512https://access.redhat.com/errata/RHSA-2025:7512
- access.redhat.comRHSA-2025:8385https://access.redhat.com/errata/RHSA-2025:8385
- access.redhat.comhttps://access.redhat.com/security/cve/CVE-2024-8176
- bugzilla.redhat.comRHBZ#2310137https://bugzilla.redhat.com/show_bug.cgi?id=2310137
- github.comhttps://github.com/libexpat/libexpat/issues/893
- github.comhttps://github.com/libexpat/libexpat/pull/973
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/03/15/1
- blog.hartwork.orghttps://blog.hartwork.org/posts/expat-2-7-0-released/
- github.comhttps://github.com/libexpat/libexpat/blob/R_2_7_0/expat/Changes#L40-L52
- bugzilla.suse.comhttps://bugzilla.suse.com/show_bug.cgi?id=1239618
- ubuntu.comhttps://ubuntu.com/security/CVE-2024-8176
- security-tracker.debian.orghttps://security-tracker.debian.org/tracker/CVE-2024-8176
- gitlab.alpinelinux.orghttps://gitlab.alpinelinux.org/alpine/aports/-/commit/d068c3ff36fc6f4789988a09c69b434db757db53
- security.netapp.comhttps://security.netapp.com/advisory/ntap-20250328-0009/
- www.kb.cert.orghttps://www.kb.cert.org/vuls/id/760160
- seclists.orghttp://seclists.org/fulldisclosure/2025/May/12
- seclists.orghttp://seclists.org/fulldisclosure/2025/May/11
- seclists.orghttp://seclists.org/fulldisclosure/2025/May/10
- seclists.orghttp://seclists.org/fulldisclosure/2025/May/8
- seclists.orghttp://seclists.org/fulldisclosure/2025/May/7
- seclists.orghttp://seclists.org/fulldisclosure/2025/May/6
- www.openwall.comhttp://www.openwall.com/lists/oss-security/2025/09/24/11
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-398330.html
- cert-portal.siemens.comhttps://cert-portal.siemens.com/productcert/html/ssa-355557.html
07 Fixed in
AlmaLinux 8
- expat Fixed in 2.2.5-17.el8_10
- expat-devel Fixed in 2.2.5-17.el8_10
- xmlrpc-c Fixed in 1.51.0-11.el8_10
- xmlrpc-c-c++ Fixed in 1.51.0-11.el8_10
- xmlrpc-c-client Fixed in 1.51.0-11.el8_10
- xmlrpc-c-client++ Fixed in 1.51.0-11.el8_10
- xmlrpc-c-devel Fixed in 1.51.0-11.el8_10
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 9
- expat Fixed
A version is affected if any line below covers it.
- Affected before 2.5.0-3.el9_5.3
- Affected before 2.5.0-5.el9_6
- expat-devel Fixed
A version is affected if any line below covers it.
- Affected before 2.5.0-3.el9_5.3
- Affected before 2.5.0-5.el9_6
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
AlmaLinux 10
- expat Fixed in 2.7.1-1.el10_0
- expat-devel Fixed in 2.7.1-1.el10_0
Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 8
- expat Fixed in 2.2.5-17.el8_10
- expat-devel Fixed in 2.2.5-17.el8_10
- xmlrpc-c Fixed in 1.51.0-11.el8_10
- xmlrpc-c-c++ Fixed in 1.51.0-11.el8_10
- xmlrpc-c-client Fixed in 1.51.0-11.el8_10
- xmlrpc-c-client++ Fixed in 1.51.0-11.el8_10
- xmlrpc-c-devel Fixed in 1.51.0-11.el8_10
Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 9
- expat Fixed
A version is affected if any line below covers it.
- Affected before 2.5.0-3.el9_5.3
- Affected before 2.5.0-5.el9_6
- expat-devel Fixed
A version is affected if any line below covers it.
- Affected before 2.5.0-3.el9_5.3
- Affected before 2.5.0-5.el9_6
Derived from AlmaLinux 9. Partial coverage: only packages taken from AlmaLinux 9 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
CloudLinux 10
- expat Fixed in 2.7.1-1.el10_0
- expat-devel Fixed in 2.7.1-1.el10_0
Derived from AlmaLinux 10. Partial coverage: only packages taken from AlmaLinux 10 are listed.
Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.
Debian 12
- expat Fixed in 2.5.0-1+deb12u2
- libxmltok No fix yet
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- expat Fixed in 2.7.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- expat Fixed in 2.7.0-1
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- cadaver No fix yet
- gdcm No fix yet
- insighttoolkit4 No fix yet
- matanza No fix yet
- smart No fix yet
- tdom No fix yet
- wbxml2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- cadaver No fix yet
- gdcm No fix yet
- insighttoolkit4 No fix yet
- matanza No fix yet
- smart No fix yet
- tdom No fix yet
- vnc4 No fix yet
- wbxml2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 20.04 LTS
- cadaver No fix yet
- insighttoolkit4 No fix yet
- matanza No fix yet
- tdom No fix yet
- wbxml2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 22.04 LTS
- cadaver No fix yet
- expat Fixed in 2.4.7-1ubuntu0.6
- insighttoolkit4 No fix yet
- matanza No fix yet
- tdom No fix yet
- wbxml2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 24.04 LTS
- cadaver No fix yet
- expat Fixed in 2.6.1-2ubuntu0.3
- matanza No fix yet
- tdom No fix yet
- wbxml2 No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 25.10
- cadaver No fix yet
- expat Fixed in 2.7.1-1
- matanza No fix yet
- swish-e No fix yet
- tdom No fix yet
- wbxml2 No fix yet
- xmlrpc-c No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.04 LTS
- cadaver No fix yet
- matanza No fix yet
- tdom No fix yet
- wbxml2 No fix yet
- xmlrpc-c No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 26.10
- cadaver No fix yet
- matanza No fix yet
- swish-e No fix yet
- tdom No fix yet
- wbxml2 No fix yet
- xmlrpc-c No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 14.04 LTS
- coin3 No fix yet
- expat No fix yet
- vnc4 No fix yet
- vtk No fix yet
- xmlrpc-c No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 16.04 LTS
- ayttm No fix yet
- cableswig No fix yet
- coin3 No fix yet
- expat No fix yet
- libxmltok No fix yet
- swish-e No fix yet
- vnc4 No fix yet
- vtk No fix yet
- xmlrpc-c No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 18.04 LTS
- coin3 No fix yet
- expat No fix yet
- libxmltok No fix yet
- swish-e No fix yet
- xmlrpc-c No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 20.04 LTS
- expat No fix yet
- libxmltok No fix yet
- swish-e No fix yet
- xmlrpc-c No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 22.04 LTS
- libxmltok No fix yet
- swish-e No fix yet
- xmlrpc-c No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 24.04 LTS
- libxmltok No fix yet
- swish-e No fix yet
- xmlrpc-c No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu Pro 26.04 LTS
- swish-e No fix yet
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.