CVE-2026-113602

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.

CVSS v3 5.3 MEDIUM

5.3^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 3.9 / Impact : 1.4

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/netplex/json-smart-v2/blob/v2.6.0/json-smart/src/main/java/net/minidev/json/parser/JSONParserBase.java
https://github.com/netplex/json-smart-v2/issues/302
https://www.vulncheck.com/advisories/json-smart-through-2.6.0-strict-mode-validation-bypass-via-0x1a-character
https://github.com/netplex/json-smart-v2/issues/302

Configurations

No configuration.

History

20 Oct 2026, 17:17

Type	Values Removed	Values Added
References	~~() https://github.com/netplex/json-smart-v2/issues/302 -~~	() https://github.com/netplex/json-smart-v2/issues/302 -

20 Oct 2026, 16:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-10-20 16:17

Updated : 2026-10-20 20:06

NVD link : CVE-2026-113602

Mitre link : CVE-2026-113602

CVE.ORG link : CVE-2026-113602

JSON object : View

Products Affected

No product.

CWE

CWE-147

Improper Neutralization of Input Terminators

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