DEBIAN-CVE-2026-14803
Mojo::JSON versions before 9.47 for Perl allow memory exhaustion via unbounded recursion in the pure-Perl decoder. The pure-Perl decode path (`_decode_value` dispatching to `_decode_array` and `_decode_object`) recurses with no depth limit, so a small deeply nested JSON document can consume excessive memory. This path is the default when Cpanel::JSON::XS is not installed or `MOJO_NO_JSON_XS=1` is set; the Cpanel::JSON::XS fast path is not affected. Any caller that decodes an untrusted JSON body, for example `Mojo::Message::json` reached through `$c->req->json`, can exhaust process memory and cause denial of service.
DEBIAN-CVE-2026-14803
Primary source · Revision 1
Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.
Security context
Source reference: osv:DEBIAN-CVE-2026-14803
libmojolicious-perl
Source reference: /affected/0/package/name
- Affected versions
- 9.31+dfsg-1
Source reference:
/affected/0/versions9.33+dfsg-1Source reference:
/affected/0/versions9.34+dfsg-1Source reference:
/affected/0/versions9.35+dfsg-1Source reference:
/affected/0/versions9.36+dfsg-1Source reference:
/affected/0/versions9.36+dfsg-1~bpo12+2Source reference:
/affected/0/versions9.37+dfsg-1Source reference:
/affected/0/versions9.37+dfsg-2Source reference:
/affected/0/versions9.37+dfsg-2~bpo12+1Source reference:
/affected/0/versions9.38+dfsg-1Source reference:
/affected/0/versions9.39+dfsg-1Source reference:
/affected/0/versions9.42+dfsg-1Source reference:
/affected/0/versions9.42+dfsg-1~bpo13+2Source reference:
/affected/0/versions9.45+dfsg-1Source reference:
/affected/0/versions9.45+dfsg-2Source reference:
/affected/0/versions9.46+dfsg-1Source reference:
/affected/0/versions9.47+dfsg-1Source reference:
/affected/0/versions9.48+dfsg-1Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libmojolicious-perl
Source reference: /affected/1/package/name
- Affected versions
- 9.39+dfsg-1
Source reference:
/affected/1/versions9.42+dfsg-1Source reference:
/affected/1/versions9.42+dfsg-1~bpo13+2Source reference:
/affected/1/versions9.45+dfsg-1Source reference:
/affected/1/versions9.45+dfsg-2Source reference:
/affected/1/versions9.46+dfsg-1Source reference:
/affected/1/versions9.47+dfsg-1Source reference:
/affected/1/versions9.48+dfsg-1Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
libmojolicious-perl
Source reference: /affected/2/package/name
- Affected versions
- 9.39+dfsg-1
Source reference:
/affected/2/versions9.42+dfsg-1Source reference:
/affected/2/versions9.42+dfsg-1~bpo13+2Source reference:
/affected/2/versions9.45+dfsg-1Source reference:
/affected/2/versions9.45+dfsg-2Source reference:
/affected/2/versions9.46+dfsg-1Source reference:
/affected/2/versions - Fixed versions
- 9.47+dfsg-1
Source reference:
/affected/2/ranges - Prerequisites
- Not stated in this record
Structured affected-version data
Original package identities and version rules from this source.
[
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libmojolicious-perl",
"purl": "pkg:deb/debian/libmojolicious-perl?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"9.31+dfsg-1",
"9.33+dfsg-1",
"9.34+dfsg-1",
"9.35+dfsg-1",
"9.36+dfsg-1",
"9.36+dfsg-1~bpo12+2",
"9.37+dfsg-1",
"9.37+dfsg-2",
"9.37+dfsg-2~bpo12+1",
"9.38+dfsg-1",
"9.39+dfsg-1",
"9.42+dfsg-1",
"9.42+dfsg-1~bpo13+2",
"9.45+dfsg-1",
"9.45+dfsg-2",
"9.46+dfsg-1",
"9.47+dfsg-1",
"9.48+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14803.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "libmojolicious-perl",
"purl": "pkg:deb/debian/libmojolicious-perl?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"9.39+dfsg-1",
"9.42+dfsg-1",
"9.42+dfsg-1~bpo13+2",
"9.45+dfsg-1",
"9.45+dfsg-2",
"9.46+dfsg-1",
"9.47+dfsg-1",
"9.48+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14803.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
},
{
"fixed": "9.47+dfsg-1"
}
]
}
],
"package": {
"name": "libmojolicious-perl",
"purl": "pkg:deb/debian/libmojolicious-perl?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"9.39+dfsg-1",
"9.42+dfsg-1",
"9.42+dfsg-1~bpo13+2",
"9.45+dfsg-1",
"9.45+dfsg-2",
"9.46+dfsg-1"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-14803.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #56117 · Revision 1
- Added to Heist Feed
- Publisher date