CVE catalog
CVE-2023-52426
expat: CVE-2023-52426
- 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
- 0.39% · Oct 25, 2026
libexpat through 2.5.0 allows recursive XML Entity Expansion if XML_DTD is undefined at compile time.
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 | vulnerable |
| Debian | libxmltok | bookworm | 1.2-4 | vulnerable |
| Cpe | libexpat | Not reported | Not reported | unknown |
| Alpine | expat | 3.16 | 2.6.0-r0 | fixed |
| Alpine | expat | 3.17 | 2.6.0-r0 | fixed |
| Alpine | expat | 3.18 | 2.6.0-r0 | fixed |
| Alpine | expat | 3.19 | 2.6.0-r0 | fixed |
| Alpine | expat | 3.20 | 2.6.0-r0 | fixed |
| Alpine | expat | 3.21 | 2.6.0-r0 | fixed |
| Alpine | expat | 3.22 | 2.6.0-r0 | fixed |
| Alpine | expat | 3.23 | 2.6.0-r0 | fixed |
| Alpine | expat | 3.24 | 2.6.0-r0 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | expat | source | sid | 2.6.0-1 | unimportant | Not reported | [1063240] |
| Debian | expat | source | forky | 2.6.0-1 | unimportant | Not reported | [1063240] |
| Debian | expat | source | trixie | 2.6.0-1 | unimportant | Not reported | [1063240] |
| Debian | expat | source | bookworm | (unfixed) | unimportant | Not reported | [1063240] |
| Debian | libxmltok | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
| Alpine | expat | apk | 3.16 | 2.6.0-r0 | Not reported | ALPINE-CVE-2023-52426 | Not reported |
| Alpine | expat | apk | 3.17 | 2.6.0-r0 | Not reported | ALPINE-CVE-2023-52426 | Not reported |
| Alpine | expat | apk | 3.18 | 2.6.0-r0 | Not reported | ALPINE-CVE-2023-52426 | Not reported |
| Alpine | expat | apk | 3.19 | 2.6.0-r0 | Not reported | ALPINE-CVE-2023-52426 | Not reported |
| Alpine | expat | apk | 3.20 | 2.6.0-r0 | Not reported | ALPINE-CVE-2023-52426 | Not reported |
| Alpine | expat | apk | 3.21 | 2.6.0-r0 | Not reported | ALPINE-CVE-2023-52426 | Not reported |
| Alpine | expat | apk | 3.22 | 2.6.0-r0 | Not reported | ALPINE-CVE-2023-52426 | Not reported |
| Alpine | expat | apk | 3.23 | 2.6.0-r0 | Not reported | ALPINE-CVE-2023-52426 | Not reported |
| Alpine | expat | apk | 3.24 | 2.6.0-r0 | Not reported | ALPINE-CVE-2023-52426 | Not reported |
Notes
[bookworm] libxmltok: Minor issue, no runtime dependencies left
OpenFactory catalog packages
Matching against OpenFactory catalog package versions is in progress.
References
- [https://cert-portal.siemens.com/productcert/csaf/ssa-784301.json]
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2024_13695-1.json]
- [https://nvd.nist.gov/vuln/detail/CVE-2023-52426]
- [https://osv.dev/vulnerability/ALPINE-CVE-2023-52426]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2023-52426]
- [https://security-tracker.debian.org/tracker/CVE-2023-52426]
- [https://security.access.redhat.com/data/csaf/v2/vex/2023/cve-2023-52426.json]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2355.json]
[CERT-Bund public advisories] · [CISA cybersecurity advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]