# CVE-2024-45492: expat: Expat is a C library for parsing XML documents.  Security Fix(es):  * libexpat: Negative Length Parsing Vulnerability...

CVE-2024-45492 is fixed in 7 products on 1 platform, first by expat 2.2.5-3ubuntu0.9+esm1, released August 29, 2024. It is not reported as exploited. Patch Radar priority: High.

- Web page: https://patchblox.com/security/cve/CVE-2024-45492
- Priority: High
- CVSS: 9.8 (Moderate)
- EPSS: 0.0139
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Aug 29, 2024

## Description

Expat is a C library for parsing XML documents.  Security Fix(es):  * libexpat: Negative Length Parsing Vulnerability in libexpat (CVE-2024-45490)  * libexpat: Integer Overflow or Wraparound (CVE-2024-45491)  * libexpat: integer overflow (CVE-2024-45492)  For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | expat Debian 12.15 (bookworm) | 2.5.0-1+deb12u1 | [DEBIAN-CVE-2024-45492](https://patchblox.com/security/data/fix/linux/debian-cve-2024-45492.md) | Aug 30, 2024 |
| Linux | expat Debian 13.5 (trixie) | 2.6.2-2 | [DEBIAN-CVE-2024-45492](https://patchblox.com/security/data/fix/linux/debian-cve-2024-45492.md) | Aug 30, 2024 |
| Linux | expat Debian 14 | 2.6.2-2 | [DEBIAN-CVE-2024-45492](https://patchblox.com/security/data/fix/linux/debian-cve-2024-45492.md) | Aug 30, 2024 |
| Linux | expat RHEL 8 | 0:2.2.5-15.el8_10 | [RHSA-2024:6989](https://patchblox.com/security/data/fix/linux/rhsa-2024-6989.md) | Sep 24, 2024 |
| Linux | expat RHEL 9 | 0:2.5.0-2.el9_4.1 | [RHSA-2024:6754](https://patchblox.com/security/data/fix/linux/rhsa-2024-6754.md) | Sep 18, 2024 |
| Linux | expat Ubuntu 18.04.6 LTS (bionic) | 2.2.5-3ubuntu0.9+esm1 | [expat 2.2.5-3ubuntu0.9+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-expat-2.2.5-3ubuntu0.9-esm1.md) | Aug 29, 2024 |
| Linux | expat Ubuntu 20.04 LTS (focal) | 2.2.9-1ubuntu0.7 | [expat 2.2.9-1ubuntu0.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-expat-2.2.9-1ubuntu0.7.md) | Aug 29, 2024 |
| Linux | expat Ubuntu 22.04.1 LTS (jammy) | 2.4.7-1ubuntu0.4 | [expat 2.4.7-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-expat-2.4.7-1ubuntu0.4.md) | Aug 29, 2024 |
| Linux | expat Ubuntu 24.04.5 LTS (noble) | 2.6.1-2ubuntu0.1 | [expat 2.6.1-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-expat-2.6.1-2ubuntu0.1.md) | Aug 29, 2024 |
| Linux | expat almalinux 8 | 2.2.5-15.el8_10 | [ALSA-2024:6989](https://patchblox.com/security/data/fix/linux/alsa-2024-6989.md) | Sep 24, 2024 |
| Linux | expat almalinux 9 | 2.5.0-2.el9_4.1 | [ALSA-2024:6754](https://patchblox.com/security/data/fix/linux/alsa-2024-6754.md) | Sep 18, 2024 |
| Linux | expat ol 8 | 0:2.2.5-15.0.1.el8_10 | [ELSA-2024-6989](https://patchblox.com/security/data/fix/linux/elsa-2024-6989.md) | Sep 24, 2024 |
| Linux | expat ol 9 | 0:2.5.0-2.el9_4.1 | [ELSA-2024-6754](https://patchblox.com/security/data/fix/linux/elsa-2024-6754.md) | Sep 18, 2024 |
| Linux | expat opensuse-leap 15.6 | 2.4.4-150400.3.22.1 | [SUSE-SU-2024:3216-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3216-1.md) | Sep 12, 2024 |
| Linux | expat rocky 8 | 0:2.2.5-15.el8_10 | [RLSA-2024:6989](https://patchblox.com/security/data/fix/linux/rlsa-2024-6989.md) | Sep 30, 2024 |
| Linux | expat rocky 9 | 0:2.5.0-2.el9_4.1 | [RLSA-2024:6754](https://patchblox.com/security/data/fix/linux/rlsa-2024-6754.md) | Sep 30, 2024 |
| Linux | expat sles 15.6 | 2.4.4-150400.3.22.1 | [SUSE-SU-2024:3216-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3216-1.md) | Sep 12, 2024 |
| Linux | expat-devel RHEL 8 | 0:2.2.5-15.el8_10 | [RHSA-2024:6989](https://patchblox.com/security/data/fix/linux/rhsa-2024-6989.md) | Sep 24, 2024 |
| Linux | expat-devel RHEL 9 | 0:2.5.0-2.el9_4.1 | [RHSA-2024:6754](https://patchblox.com/security/data/fix/linux/rhsa-2024-6754.md) | Sep 18, 2024 |
| Linux | expat-devel almalinux 8 | 2.2.5-15.el8_10 | [ALSA-2024:6989](https://patchblox.com/security/data/fix/linux/alsa-2024-6989.md) | Sep 24, 2024 |
| Linux | expat-devel almalinux 9 | 2.5.0-2.el9_4.1 | [ALSA-2024:6754](https://patchblox.com/security/data/fix/linux/alsa-2024-6754.md) | Sep 18, 2024 |
| Linux | expat-devel ol 8 | 0:2.2.5-15.0.1.el8_10 | [ELSA-2024-6989](https://patchblox.com/security/data/fix/linux/elsa-2024-6989.md) | Sep 24, 2024 |
| Linux | expat-devel ol 9 | 0:2.5.0-2.el9_4.1 | [ELSA-2024-6754](https://patchblox.com/security/data/fix/linux/elsa-2024-6754.md) | Sep 18, 2024 |
| Linux | libexpat1 Ubuntu 18.04.6 LTS (bionic) | 2.2.5-3ubuntu0.9+esm1 | [libexpat1 2.2.5-3ubuntu0.9+esm1](https://patchblox.com/security/data/fix/linux/ubuntu-bionic-libexpat1-2.2.5-3ubuntu0.9-esm1.md) | Aug 29, 2024 |
| Linux | libexpat1 Ubuntu 20.04 LTS (focal) | 2.2.9-1ubuntu0.7 | [libexpat1 2.2.9-1ubuntu0.7](https://patchblox.com/security/data/fix/linux/ubuntu-focal-libexpat1-2.2.9-1ubuntu0.7.md) | Aug 29, 2024 |
| Linux | libexpat1 Ubuntu 22.04.1 LTS (jammy) | 2.4.7-1ubuntu0.4 | [libexpat1 2.4.7-1ubuntu0.4](https://patchblox.com/security/data/fix/linux/ubuntu-jammy-libexpat1-2.4.7-1ubuntu0.4.md) | Aug 29, 2024 |
| Linux | libexpat1 Ubuntu 24.04.5 LTS (noble) | 2.6.1-2ubuntu0.1 | [libexpat1 2.6.1-2ubuntu0.1](https://patchblox.com/security/data/fix/linux/ubuntu-noble-libexpat1-2.6.1-2ubuntu0.1.md) | Aug 29, 2024 |
| Linux | mozjs115 opensuse-leap 15.6 | 115.4.0-150600.3.3.1 | [SUSE-SU-2024:3538-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3538-1.md) | Oct 7, 2024 |
| Linux | mozjs115 sles 15.6 | 115.4.0-150600.3.3.1 | [SUSE-SU-2024:3538-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3538-1.md) | Oct 7, 2024 |
| Linux | mozjs52 opensuse-leap 15.6 | 52.6.0-150000.3.9.1 | [SUSE-SU-2025:4512-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4512-1.md) | Dec 23, 2025 |
| Linux | mozjs52 sles 15.7 | 52.6.0-150000.3.9.1 | [SUSE-SU-2025:4512-1](https://patchblox.com/security/data/fix/linux/suse-su-2025-4512-1.md) | Dec 23, 2025 |
| Linux | mozjs60 opensuse-leap 15.6 | 60.9.0-150200.6.8.1 | [SUSE-SU-2026:0044-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0044-1.md) | Jan 6, 2026 |
| Linux | mozjs60 sles 15.7 | 60.9.0-150200.6.8.1 | [SUSE-SU-2026:0044-1](https://patchblox.com/security/data/fix/linux/suse-su-2026-0044-1.md) | Jan 6, 2026 |
| Linux | mozjs78 opensuse-leap 15.6 | 78.15.0-150400.3.6.2 | [SUSE-SU-2024:3554-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3554-1.md) | Oct 9, 2024 |
| Linux | mozjs78 sles 15.6 | 78.15.0-150400.3.6.2 | [SUSE-SU-2024:3554-1](https://patchblox.com/security/data/fix/linux/suse-su-2024-3554-1.md) | Oct 9, 2024 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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