CVE-2026-113602

Published: Oct 20, 2026Modified: Oct 20, 2026

6.9

Vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/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:XShow less

Source: disclosure@vulncheck.com (Secondary)

Description

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.

Related CWEs

CWE-147

Improper Neutralization of Input Terminators

The product receives input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could be interpreted as input terminators when they are sent to a downstream component.

References (4)

https://github.com/netplex/json-smart-v2/blob/v2.6.0/json-smart/src/main/java/net/minidev/json/parser/JSONParserBase.java

Source: disclosure@vulncheck.com

https://github.com/netplex/json-smart-v2/issues/302

Source: disclosure@vulncheck.com

https://www.vulncheck.com/advisories/json-smart-through-2.6.0-strict-mode-validation-bypass-via-0x1a-character

Source: disclosure@vulncheck.com

https://github.com/netplex/json-smart-v2/issues/302

Source: 134c704f-9b21-4f2e-91b3-4a467353bcc0

Timeline

No history available yet.