DEBIAN-CVE-2026-54903

Source
https://security-tracker.debian.org/tracker/CVE-2026-54903
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54903.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-54903
Upstream
  • CVE-2026-54903
Published
2026-07-01T00:16:33Z
Modified
2026-09-14T17:03:43Z
Severity
  • 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X CVSS Calculator
Summary
[none]
Details

Oj (Optimized JSON) is a JSON parser and Object marshaller packaged as a Ruby gem. In versions prior to 3.17.2, Oj.load is vulnerable to heap corruption when parsing a JSON string longer than 2 GB. An integer overflow in buf_append_string (buf.h:61) converts the string length to a large negative size_t, causing memcpy to copy an astronomically large amount of data out of bounds. This crashes the process and can corrupt adjacent heap memory. The issue has been fixed in version 3.17.2.

References

Affected packages

Debian:12 / ruby-oj

Package

Name
ruby-oj
Purl
pkg:deb/debian/ruby-oj?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.14.2-1
3.15.0-1
3.16.0-1
3.16.1-1
3.16.3-1
3.16.12-1
3.16.15-1
3.16.16-1
3.17.0-1
3.17.1-1
3.17.3-1
3.17.4-1
3.17.6-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54903.json"

Debian:13 / ruby-oj

Package

Name
ruby-oj
Purl
pkg:deb/debian/ruby-oj?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

3.*
3.16.3-1
3.16.12-1
3.16.15-1
3.16.16-1
3.17.0-1
3.17.1-1
3.17.3-1
3.17.4-1
3.17.6-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54903.json"

Debian:14 / ruby-oj

Package

Name
ruby-oj
Purl
pkg:deb/debian/ruby-oj?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
3.17.3-1

Affected versions

3.*
3.16.3-1
3.16.12-1
3.16.15-1
3.16.16-1
3.17.0-1
3.17.1-1

Ecosystem specific

{
    "urgency": "not yet assigned"
}

Database specific

source
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-54903.json"