CVE catalog
CVE-2026-24515
Expat vulnerabilities
- Severity
- Medium · CVSS 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.19% · Oct 22, 2026
In libexpat before 2.7.4, XML_ExternalEntityParserCreate does not copy unknown encoding handler user data.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | expat | sid | 2.9.0-1 | fixed |
| Debian | expat | forky | 2.9.0-1 | fixed |
| Debian | expat | trixie | 2.8.3-1~deb13u1 | fixed |
| Debian | expat | trixie-security | 2.9.0-1~deb13u1 | fixed |
| Debian | expat | bookworm | 2.5.0-1+deb12u2 | vulnerable |
| Debian | expat | bookworm-security | 2.5.0-1+deb12u5 | fixed |
| Ubuntu | expat | noble | Not reported | vulnerable |
| Ubuntu | expat | noble | 2.6.1-2ubuntu0.4 | fixed |
| Ubuntu | libexpat1 | noble | 2.6.1-2ubuntu0.4 | fixed |
| Ubuntu | libexpat1-dev | noble | 2.6.1-2ubuntu0.4 | fixed |
| Ubuntu | libxmltok | noble | 1.2-4.1ubuntu2.24.0.4.1+esm4 | fixed |
| Ubuntu | libxmltok1-dev | noble | 1.2-4.1ubuntu2.24.0.4.1+esm4 | fixed |
| Ubuntu | libxmltok1t64 | noble | 1.2-4.1ubuntu2.24.0.4.1+esm4 | fixed |
| Alpine | expat | 3.20 | 2.7.4-r0 | fixed |
| Alpine | expat | 3.21 | 2.7.4-r0 | fixed |
| Alpine | expat | 3.22 | 2.7.4-r0 | fixed |
| Alpine | expat | 3.23 | 2.7.4-r0 | fixed |
| Alpine | expat | 3.24 | 2.7.4-r0 | fixed |
| Ubuntu | libxmltok | pro | 1.2-4ubuntu1 | vulnerable |
| Ubuntu | libxmltok | pro | 1.2-4.1ubuntu1 | vulnerable |
| Ubuntu | libxmltok | pro | 1.2-4.1ubuntu2 | vulnerable |
| Ubuntu | libxmltok | pro | 1.2-4.1ubuntu2.24.0.4.1+esm1 | vulnerable |
| Ubuntu | libxmltok | pro | 1.2-4.1ubuntu2.24.0.4.1+esm2 | vulnerable |
| Ubuntu | libxmltok | pro | 1.2-4.1ubuntu2.24.0.4.1+esm3 | vulnerable |
| Ubuntu | libxmltok | pro | 1.2-4.1ubuntu2.24.0.4.1+esm4 | fixed |
| Ubuntu | expat | 24.04 | 2.5.0-2 | vulnerable |
| Ubuntu | expat | 24.04 | 2.6.0-1 | vulnerable |
| Ubuntu | expat | 24.04 | 2.6.1-2 | vulnerable |
| Ubuntu | expat | 24.04 | 2.6.1-2build1 | vulnerable |
| Ubuntu | expat | 24.04 | 2.6.1-2ubuntu0.1 | vulnerable |
| Ubuntu | expat | 24.04 | 2.6.1-2ubuntu0.2 | vulnerable |
| Ubuntu | expat | 24.04 | 2.6.1-2ubuntu0.3 | vulnerable |
| Ubuntu | expat | 24.04 | 2.6.1-2ubuntu0.4 | fixed |
| Opensuse | expat | leap 16.0 | 2.7.1-160000.4.1 | fixed |
| Opensuse | expat | tumbleweed | 2.7.4-1.1 | fixed |
| Suse | expat | linux micro 6.0 | 2.7.1-4.1 | fixed |
| Suse | expat | linux micro 6.2 | 2.7.1-160000.4.1 | fixed |
| Suse | expat | linux enterprise server 16.0 | 2.7.1-160000.4.1 | fixed |
| Suse | expat | linux enterprise server for sap applications 16.0 | 2.7.1-160000.4.1 | fixed |
| Suse | expat | linux micro 6.1 | 2.7.1-slfo.1.1_4.1 | fixed |
| Suse | expat | linux enterprise micro 5.2 | 2.7.1-150000.3.42.1 | fixed |
| Suse | expat | linux enterprise micro 5.3 | 2.7.1-150400.3.34.1 | fixed |
| Suse | expat | linux enterprise micro 5.4 | 2.7.1-150400.3.34.1 | fixed |
| Suse | expat | linux enterprise micro 5.5 | 2.7.1-150400.3.34.1 | fixed |
| Opensuse | expat | leap 15.6 | 2.7.1-150400.3.34.1 | fixed |
| Suse | expat | linux enterprise server ltss extended security 12 sp5 | 2.7.1-21.49.1 | fixed |
| Suse | expat | linux enterprise module for basesystem 15 sp7 | 2.7.1-150700.3.9.2 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | expat | source | sid | 2.7.3-2 | not yet assigned | Not reported | [1126277] |
| Debian | expat | source | forky | 2.7.3-2 | not yet assigned | Not reported | [1126277] |
| Debian | expat | source | trixie | 2.8.2-1~deb13u1 | not yet assigned | Not reported | [1126277] |
| Debian | expat | source | bookworm | 2.5.0-1+deb12u4 | not yet assigned | Not reported | [1126277] |
| Ubuntu | expat | deb | noble | 2.6.1-2ubuntu0.4 | Not reported | Not reported | Not reported |
| Ubuntu | libexpat1 | deb | noble | 2.6.1-2ubuntu0.4 | Not reported | Not reported | Not reported |
| Ubuntu | libexpat1-dev | deb | noble | 2.6.1-2ubuntu0.4 | Not reported | Not reported | Not reported |
| Ubuntu | libxmltok | deb | noble | 1.2-4.1ubuntu2.24.0.4.1+esm4 | Not reported | Not reported | Not reported |
| Ubuntu | libxmltok1-dev | deb | noble | 1.2-4.1ubuntu2.24.0.4.1+esm4 | Not reported | Not reported | Not reported |
| Ubuntu | libxmltok1t64 | deb | noble | 1.2-4.1ubuntu2.24.0.4.1+esm4 | Not reported | Not reported | Not reported |
| Alpine | expat | apk | 3.20 | 2.7.4-r0 | Not reported | ALPINE-CVE-2026-24515 | Not reported |
| Alpine | expat | apk | 3.21 | 2.7.4-r0 | Not reported | ALPINE-CVE-2026-24515 | Not reported |
| Alpine | expat | apk | 3.22 | 2.7.4-r0 | Not reported | ALPINE-CVE-2026-24515 | Not reported |
| Alpine | expat | apk | 3.23 | 2.7.4-r0 | Not reported | ALPINE-CVE-2026-24515 | Not reported |
| Alpine | expat | apk | 3.24 | 2.7.4-r0 | Not reported | ALPINE-CVE-2026-24515 | Not reported |
| Ubuntu | libxmltok | deb | pro | 1.2-4.1ubuntu2.24.0.4.1+esm4 | Not reported | USN-8023-1 | Not reported |
| Ubuntu | expat | deb | 24.04 | 2.6.1-2ubuntu0.4 | Not reported | USN-8022-2 | Not reported |
| Opensuse | expat | rpm | leap 16.0 | 2.7.1-160000.4.1 | Not reported | OPENSUSE-SU-2026:20306-1 | Not reported |
| Opensuse | expat | rpm | tumbleweed | 2.7.4-1.1 | Not reported | OPENSUSE-SU-2026:10144-1 | Not reported |
| Suse | expat | rpm | linux micro 6.0 | 2.7.1-4.1 | Not reported | SUSE-SU-2026:20350-1 | Not reported |
| Suse | expat | rpm | linux micro 6.2 | 2.7.1-160000.4.1 | Not reported | SUSE-SU-2026:20642-1 | Not reported |
| Suse | expat | rpm | linux enterprise server 16.0 | 2.7.1-160000.4.1 | Not reported | SUSE-SU-2026:20627-1 | Not reported |
| Suse | expat | rpm | linux enterprise server for sap applications 16.0 | 2.7.1-160000.4.1 | Not reported | SUSE-SU-2026:20627-1 | Not reported |
| Suse | expat | rpm | linux micro 6.1 | 2.7.1-slfo.1.1_4.1 | Not reported | SUSE-SU-2026:20481-1 | Not reported |
| Suse | expat | rpm | linux enterprise micro 5.2 | 2.7.1-150000.3.42.1 | Not reported | SUSE-SU-2026:0386-1 | Not reported |
| Suse | expat | rpm | linux enterprise micro 5.3 | 2.7.1-150400.3.34.1 | Not reported | SUSE-SU-2026:0826-1 | Not reported |
| Suse | expat | rpm | linux enterprise micro 5.4 | 2.7.1-150400.3.34.1 | Not reported | SUSE-SU-2026:0826-1 | Not reported |
| Suse | expat | rpm | linux enterprise micro 5.5 | 2.7.1-150400.3.34.1 | Not reported | SUSE-SU-2026:0826-1 | Not reported |
| Opensuse | expat | rpm | leap 15.6 | 2.7.1-150400.3.34.1 | Not reported | SUSE-SU-2026:0826-1 | Not reported |
| Suse | expat | rpm | linux enterprise server ltss extended security 12 sp5 | 2.7.1-21.49.1 | Not reported | SUSE-SU-2026:0647-1 | Not reported |
| Suse | expat | rpm | linux enterprise module for basesystem 15 sp7 | 2.7.1-150700.3.9.2 | Not reported | SUSE-SU-2026:0646-1 | Not reported |
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
[Debian 12 (Bookworm)]
- [expat]Unknown
Details (4)
2.5.0-1+deb12u2· amd64 · bookwormAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
2.5.0-1+deb12u2· arm64 · bookwormAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
2.5.0-1+deb12u3· amd64 · bookworm-securityAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
2.5.0-1+deb12u3· arm64 · bookworm-securityAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
- [libexpat1]Unknown
Source package: [expat]
Details (4)
2.5.0-1+deb12u2· amd64 · bookwormAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
2.5.0-1+deb12u2· arm64 · bookwormAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
2.5.0-1+deb12u3· amd64 · bookworm-securityAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
2.5.0-1+deb12u3· arm64 · bookworm-securityAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
- [libexpat1-dev]Unknown
Source package: [expat]
Details (4)
2.5.0-1+deb12u2· amd64 · bookwormAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
2.5.0-1+deb12u2· arm64 · bookwormAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
2.5.0-1+deb12u3· amd64 · bookworm-securityAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
2.5.0-1+deb12u3· arm64 · bookworm-securityAffected · Fixed:
2.5.0-1+deb12u4usn · expat · debian · bookworm; usn · expat · debian · 12
[Debian 13 (Trixie)]
- [expat]Unknown
Details (6)
2.7.1-2· amd64 · trixieAffected · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.7.1-2· arm64 · trixieAffected · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.8.2-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.8.3-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.8.3-1~deb13u1· arm64 · trixie-securityFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.9.0-1~deb13u1· amd64 · trixie-securityFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
- [libexpat1]Unknown
Source package: [expat]
Details (6)
2.7.1-2· amd64 · trixieAffected · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.7.1-2· arm64 · trixieAffected · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.8.2-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.8.3-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.8.3-1~deb13u1· arm64 · trixie-securityFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.9.0-1~deb13u1· amd64 · trixie-securityFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
- [libexpat1-dev]Unknown
Source package: [expat]
Details (6)
2.7.1-2· amd64 · trixieAffected · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.7.1-2· arm64 · trixieAffected · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.8.2-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.8.3-1~deb13u1· amd64 · trixie-security · Historical versionFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.8.3-1~deb13u1· arm64 · trixie-securityFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
2.9.0-1~deb13u1· amd64 · trixie-securityFixed · Fixed:
2.8.2-1~deb13u1usn · expat · debian · 13
[openSUSE Tumbleweed]
- [expat]Unknown
Source package: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedFixed · Fixed:
2.7.4-1.1usn · expat · opensuse · tumbleweed
- [libexpat1]Unknown
Source package: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedUnknown · Fixed:
2.7.4-1.1Version impact unknown
usn · expat · opensuse · tumbleweed
- [libexpat1-32bit]Unknown
Source package: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedUnknown · Fixed:
2.7.4-1.1Version impact unknown
usn · expat · opensuse · tumbleweed
- [libexpat-devel]Unknown
Source package: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedUnknown · Fixed:
2.7.4-1.1Version impact unknown
usn · expat · opensuse · tumbleweed
- [libexpat-devel-32bit]Unknown
Source package: [expat]
Details (1)
2.8.2-1.1· x86_64 · tumbleweedUnknown · Fixed:
2.7.4-1.1Version impact unknown
usn · expat · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2026_4619-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2026-24515]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-24515]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0386-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0646-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0647-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0826-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20350-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20481-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20627-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20642-1]
- [https://osv.dev/vulnerability/USN-8022-2]
- [https://osv.dev/vulnerability/USN-8023-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10144-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:20306-1]
- [https://raw.githubusercontent.com/cisagov/CSAF/develop/csaf_files/OT/white/2026/icsa-26-155-04.json]
- [https://security-tracker.debian.org/tracker/CVE-2026-24515]
- [https://ubuntu.com/security/notices/USN-8022-2]
- [https://ubuntu.com/security/notices/USN-8023-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2189.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]