Bug#1152785: json-smart: CVE-2026-113602

[Salvatore Bonaccorso]

Source: json-smart
Version: 2.5.2-1
X-Debbugs-CC: team at security.debian.org
Severity: important
Tags: security upstream
Forwarded: https://github.com/netplex/json-smart-v2/issues/302

Hi,

The following vulnerability was published for json-smart.

CVE-2026-113602[0]:
| 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.


If you fix the vulnerability please also make sure to include the
CVE (Common Vulnerabilities & Exposures) id in your changelog entry.

For further information see:

[0] https://security-tracker.debian.org/tracker/CVE-2026-113602
    https://www.cve.org/CVERecord?id=CVE-2026-113602
[1] https://github.com/netplex/json-smart-v2/issues/302

Please adjust the affected versions in the BTS as needed.

Regards,
Salvatore