CVE catalog
CVE-2025-40929
Cpanel-JSON-XS vulnerability
- Severity
- Critical · CVSS 9.8
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.46% · Oct 25, 2026
Cpanel::JSON::XS before version 4.40 for Perl has an integer buffer overflow causing a segfault when parsing crafted JSON, enabling denial-of-service attacks or other unspecified impact
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 | libcpanel-json-xs-perl | sid | 4.80-1 | fixed |
| Debian | libcpanel-json-xs-perl | forky | 4.80-1 | fixed |
| Debian | libcpanel-json-xs-perl | trixie | 4.39-2~deb13u1 | fixed |
| Debian | libcpanel-json-xs-perl | trixie-security | 4.39-2~deb13u1 | fixed |
| Debian | libcpanel-json-xs-perl | bookworm | 4.35-1+deb12u1 | fixed |
| Debian | libcpanel-json-xs-perl | bookworm-security | 4.35-1+deb12u1 | fixed |
| Ubuntu | libcpanel-json-xs-perl | noble | 4.35-1+deb12u1 | fixed |
| Ubuntu | libcpanel-json-xs-perl | noble | 4.37-1ubuntu0.1 | fixed |
| Alpine | perl-cpanel-json-xs | 3.20 | 4.40-r0 | fixed |
| Alpine | perl-cpanel-json-xs | 3.21 | 4.40-r0 | fixed |
| Alpine | perl-cpanel-json-xs | 3.22 | 4.40-r0 | fixed |
| Alpine | perl-cpanel-json-xs | 3.23 | 4.40-r0 | fixed |
| Alpine | perl-cpanel-json-xs | 3.24 | 4.40-r0 | fixed |
| Opensuse | perl-Cpanel-JSON-XS | leap 16.0 | 4.420.0-bp160.1.1 | fixed |
| Ubuntu | libcpanel-json-xs-perl | 16.04 | 3.0115-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 16.04 | 3.0210-1ubuntu1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 18.04 | 3.0225-1build1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 18.04 | 3.0239-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 20.04 | 4.12-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 20.04 | 4.12-1build1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 20.04 | 4.15-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 20.04 | 4.17-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 20.04 | 4.18-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 20.04 | 4.19-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 20.04 | 4.19-1build1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 20.04 | 4.19-1ubuntu0.1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.25-1build1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.25-1build2 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.27-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.27-1build1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.27-1ubuntu0.1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.27-1ubuntu0.2 | fixed |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1build1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1build2 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1build3 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1ubuntu0.1 | fixed |
| Ubuntu | libcpanel-json-xs-perl | 25.10 | 4.39-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 25.10 | 4.39-2 | fixed |
| Ubuntu | libcpanel-json-xs-perl | 26.04 | 4.39-2 | fixed |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.25-1build1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.25-1build2 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.27-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.27-1build1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.27-1ubuntu0.1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 22.04 | 4.27-1ubuntu0.2 | fixed |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1build1 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1build2 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1build3 | vulnerable |
| Ubuntu | libcpanel-json-xs-perl | 24.04 | 4.37-1ubuntu0.1 | fixed |
| Opensuse | perl-Cpanel-JSON-XS | tumbleweed | 4.400.0-1.1 | fixed |
| Suse | perl-Cpanel-JSON-XS | linux enterprise module for package hub 15 sp7 | 4.380.0-150700.3.3.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | libcpanel-json-xs-perl | source | sid | 4.39-2 | not yet assigned | Not reported | Not reported |
| Debian | libcpanel-json-xs-perl | source | forky | 4.39-2 | not yet assigned | Not reported | Not reported |
| Debian | libcpanel-json-xs-perl | source | trixie | 4.39-2~deb13u1 | not yet assigned | Not reported | Not reported |
| Debian | libcpanel-json-xs-perl | source | bookworm | 4.35-1+deb12u1 | not yet assigned | Not reported | Not reported |
| Ubuntu | libcpanel-json-xs-perl | deb | noble | 4.35-1+deb12u1 | Not reported | Not reported | Not reported |
| Ubuntu | libcpanel-json-xs-perl | deb | noble | 4.37-1ubuntu0.1 | Not reported | Not reported | Not reported |
| Alpine | perl-cpanel-json-xs | apk | 3.20 | 4.40-r0 | Not reported | ALPINE-CVE-2025-40929 | Not reported |
| Alpine | perl-cpanel-json-xs | apk | 3.21 | 4.40-r0 | Not reported | ALPINE-CVE-2025-40929 | Not reported |
| Alpine | perl-cpanel-json-xs | apk | 3.22 | 4.40-r0 | Not reported | ALPINE-CVE-2025-40929 | Not reported |
| Alpine | perl-cpanel-json-xs | apk | 3.23 | 4.40-r0 | Not reported | ALPINE-CVE-2025-40929 | Not reported |
| Alpine | perl-cpanel-json-xs | apk | 3.24 | 4.40-r0 | Not reported | ALPINE-CVE-2025-40929 | Not reported |
| Opensuse | perl-Cpanel-JSON-XS | rpm | leap 16.0 | 4.420.0-bp160.1.1 | Not reported | OPENSUSE-SU-2026:21140-1 | Not reported |
| Ubuntu | libcpanel-json-xs-perl | deb | 22.04 | 4.27-1ubuntu0.2 | Not reported | UBUNTU-CVE-2025-40929 | Not reported |
| Ubuntu | libcpanel-json-xs-perl | deb | 24.04 | 4.37-1ubuntu0.1 | Not reported | UBUNTU-CVE-2025-40929 | Not reported |
| Ubuntu | libcpanel-json-xs-perl | deb | 25.10 | 4.39-2 | Not reported | UBUNTU-CVE-2025-40929 | Not reported |
| Ubuntu | libcpanel-json-xs-perl | deb | 26.04 | 4.39-2 | Not reported | UBUNTU-CVE-2025-40929 | Not reported |
| Ubuntu | libcpanel-json-xs-perl | deb | 22.04 | 4.27-1ubuntu0.2 | Not reported | USN-7749-1 | Not reported |
| Ubuntu | libcpanel-json-xs-perl | deb | 24.04 | 4.37-1ubuntu0.1 | Not reported | USN-7749-1 | Not reported |
| Opensuse | perl-Cpanel-JSON-XS | rpm | tumbleweed | 4.400.0-1.1 | Not reported | OPENSUSE-SU-2025:15534-1 | Not reported |
| Suse | perl-Cpanel-JSON-XS | rpm | linux enterprise module for package hub 15 sp7 | 4.380.0-150700.3.3.1 | Not reported | SUSE-SU-2025:03193-1 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libcpanel-json-xs-perl]Fixed
Details (4)
4.35-1+deb12u1· amd64 · bookwormFixed · Fixed:
4.35-1+deb12u1usn · libcpanel-json-xs-perl · debian · bookworm; usn · libcpanel-json-xs-perl · debian · 12
4.35-1+deb12u1· arm64 · bookwormFixed · Fixed:
4.35-1+deb12u1usn · libcpanel-json-xs-perl · debian · bookworm; usn · libcpanel-json-xs-perl · debian · 12
4.35-1+deb12u1· amd64 · bookworm-securityFixed · Fixed:
4.35-1+deb12u1usn · libcpanel-json-xs-perl · debian · bookworm; usn · libcpanel-json-xs-perl · debian · 12
4.35-1+deb12u1· arm64 · bookworm-securityFixed · Fixed:
4.35-1+deb12u1usn · libcpanel-json-xs-perl · debian · bookworm; usn · libcpanel-json-xs-perl · debian · 12
[Debian 13 (Trixie)]
- [libcpanel-json-xs-perl]Fixed
Details (4)
4.39-2~deb13u1· amd64 · trixieFixed · Fixed:
4.39-2~deb13u1usn · libcpanel-json-xs-perl · debian · 13
4.39-2~deb13u1· arm64 · trixieFixed · Fixed:
4.39-2~deb13u1usn · libcpanel-json-xs-perl · debian · 13
4.39-2~deb13u1· amd64 · trixie-securityFixed · Fixed:
4.39-2~deb13u1usn · libcpanel-json-xs-perl · debian · 13
4.39-2~deb13u1· arm64 · trixie-securityFixed · Fixed:
4.39-2~deb13u1usn · libcpanel-json-xs-perl · debian · 13
[openSUSE Tumbleweed]
- [perl-Cpanel-JSON-XS]Fixed
Source package: [perl-Cpanel-JSON-XS]
Details (1)
4.430.0-1.2· x86_64 · tumbleweedFixed · Fixed:
4.400.0-1.1usn · perl-Cpanel-JSON-XS · opensuse · tumbleweed
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/suse-su-2025_03193-1.json]
- [https://osv.dev/vulnerability/ALPINE-CVE-2025-40929]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-40929]
- [https://osv.dev/vulnerability/DLA-4318-1]
- [https://osv.dev/vulnerability/DSA-6000-1]
- [https://osv.dev/vulnerability/SUSE-SU-2025:03193-1]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2025-40929]
- [https://osv.dev/vulnerability/USN-7749-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2025:15534-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:21140-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-40929]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-40929.json]
- [https://ubuntu.com/security/notices/USN-7749-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2025/wid-sec-w-2025-2081.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]