DEBIAN-CVE-2026-87933
A vulnerability was found in DaveGamble cJSON up to 1.7.19. The affected element is the function cJSONUtils_MergePatch of the file cJSON_Utils.c. The manipulation results in use after free. The attack may be launched remotely. The exploit has been made public and could be used. The pull request to fix this issue awaits acceptance.
DEBIAN-CVE-2026-87933
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-2026-87933
cjson
Source reference: /affected/0/package/name
- Affected versions
- 1.7.15-1
Source reference:
/affected/0/versions1.7.15-1+deb12u1Source reference:
/affected/0/versions1.7.15-1+deb12u2Source reference:
/affected/0/versions1.7.15-1+deb12u3Source reference:
/affected/0/versions1.7.15-1+deb12u4Source reference:
/affected/0/versions1.7.16-1Source reference:
/affected/0/versions1.7.16-2Source reference:
/affected/0/versions1.7.17-1Source reference:
/affected/0/versions1.7.17-2Source reference:
/affected/0/versions1.7.18-1Source reference:
/affected/0/versions1.7.18-2Source reference:
/affected/0/versions1.7.18-3Source reference:
/affected/0/versions1.7.18-3.1Source reference:
/affected/0/versions1.7.18-4Source reference:
/affected/0/versions1.7.19-1Source reference:
/affected/0/versions1.7.19-2Source reference:
/affected/0/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
cjson
Source reference: /affected/1/package/name
- Affected versions
- 1.7.18-3.1
Source reference:
/affected/1/versions1.7.18-3.1+deb13u1Source reference:
/affected/1/versions1.7.18-4Source reference:
/affected/1/versions1.7.19-1Source reference:
/affected/1/versions1.7.19-2Source reference:
/affected/1/versions - Fixed versions
- Not stated in this record
- Prerequisites
- Not stated in this record
cjson
Source reference: /affected/2/package/name
- Affected versions
- 1.7.18-3.1
Source reference:
/affected/2/versions1.7.18-4Source reference:
/affected/2/versions1.7.19-1Source reference:
/affected/2/versions1.7.19-2Source reference:
/affected/2/versions - Fixed versions
- Not stated in this record
- 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": "cjson",
"purl": "pkg:deb/debian/cjson?arch=source&distro=bookworm",
"ecosystem": "Debian:12"
},
"versions": [
"1.7.15-1",
"1.7.15-1+deb12u1",
"1.7.15-1+deb12u2",
"1.7.15-1+deb12u3",
"1.7.15-1+deb12u4",
"1.7.16-1",
"1.7.16-2",
"1.7.17-1",
"1.7.17-2",
"1.7.18-1",
"1.7.18-2",
"1.7.18-3",
"1.7.18-3.1",
"1.7.18-4",
"1.7.19-1",
"1.7.19-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87933.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cjson",
"purl": "pkg:deb/debian/cjson?arch=source&distro=trixie",
"ecosystem": "Debian:13"
},
"versions": [
"1.7.18-3.1",
"1.7.18-3.1+deb13u1",
"1.7.18-4",
"1.7.19-1",
"1.7.19-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87933.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "cjson",
"purl": "pkg:deb/debian/cjson?arch=source&distro=forky",
"ecosystem": "Debian:14"
},
"versions": [
"1.7.18-3.1",
"1.7.18-4",
"1.7.19-1",
"1.7.19-2"
],
"database_specific": {
"source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-87933.json"
},
"ecosystem_specific": {
"urgency": "not yet assigned"
}
}
]Publisher severity
No explicit severity was provided.
- Event
- #58519 · Revision 1
- Added to Heist Feed
- Publisher date