CVE catalog
CVE-2026-113602
json-smart: CVE-2026-113602
- Severity
- Medium · CVSS 5.3
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.45% · Oct 25, 2026
json-smart through 2.6.0 contains an input validation bypass vulnerability that allows attackers to evade strict-mode trailing-data checks by inserting a literal 0x1A character. Attackers can append 0x1A and malformed content to pass JSONValue.parseStrict or isValidJsonStrict validation, creating parser differentials with downstream parsers like Jackson or Gson.
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 | json-smart | sid | 2.5.2-1 | vulnerable |
| Debian | json-smart | forky | 2.5.2-1 | vulnerable |
| Debian | json-smart | trixie | 2.5.2-1 | vulnerable |
| Debian | json-smart | bookworm | 2.2-2+deb12u1 | vulnerable |
| Ubuntu | json-smart | 18.04 | 2.2-1 | vulnerable |
| Ubuntu | json-smart | 18.04 | 2.2-2 | vulnerable |
| Ubuntu | json-smart | 18.04 | 2.2-2ubuntu0.18.04.1 | vulnerable |
| Ubuntu | json-smart | 20.04 | 2.2-2 | vulnerable |
| Ubuntu | json-smart | 20.04 | 2.2-2ubuntu0.20.04.1 | vulnerable |
| Ubuntu | json-smart | 22.04 | 2.2-2 | vulnerable |
| Ubuntu | json-smart | 22.04 | 2.2-2ubuntu0.22.04.1 | vulnerable |
| Ubuntu | json-smart | 24.04 | 2.2-2ubuntu1 | vulnerable |
| Ubuntu | json-smart | 26.10 | 2.5.2-1 | vulnerable |
| Ubuntu | json-smart | 26.04 | 2.5.2-1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | json-smart | source | sid | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | json-smart | source | forky | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | json-smart | source | trixie | (unfixed) | not yet assigned | Not reported | Not reported |
| Debian | json-smart | source | bookworm | (unfixed) | not yet assigned | Not reported | Not reported |
Notes
[trixie] json-smart: Minor issue [bookworm] json-smart: Minor issue; can be fixed in next update
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libjson-smart-java]Affected
Source package: [json-smart]
Details (2)
2.2-2+deb12u1· all · bookwormAffected
dsa · json-smart · debian · bookworm; dsa · json-smart · debian · 12
2.2-2+deb12u1· all · bookwormAffected
dsa · json-smart · debian · bookworm; dsa · json-smart · debian · 12
[Debian 13 (Trixie)]
- [libjson-smart-java]Affected
Source package: [json-smart]
Details (2)
2.5.2-1· all · trixieAffected
dsa · json-smart · debian · 13
2.5.2-1· all · trixieAffected
dsa · json-smart · debian · 13
Observed:
References
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-113602]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-113602]
- [https://security-tracker.debian.org/tracker/CVE-2026-113602]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-113602.json]
[Debian Security Tracker] · [FIRST EPSS] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]