CVE-2026-113602CWE-147

CVE-2026-113602

Medium · published October 20, 2026

CVSS v3.1
5.3
EPSS
0%
Percentile
38.0
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
5.3 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
CVSS v4.0
6.9 · 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
EPSS
0.00448 · 38.0th percentile
Weakness
CWE-147 · Improper Neutralization of Input Terminators
Published
2026-10-20T20:17Z
References (4)
https://github.com/netplex/json-smart-v2/blob/v2.6.0/json-smart/src/main/java/net/minidev/json/parser/JSONParserBase.java · [email protected]https://github.com/netplex/json-smart-v2/issues/302 · [email protected]https://www.vulncheck.com/advisories/json-smart-through-2.6.0-strict-mode-validation-bypass-via-0x1a-character · [email protected]https://github.com/netplex/json-smart-v2/issues/302 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 22 OCT 03:29Z
    EPSS moved — → 0%
    epss
  • 20 OCT 15:40Z
    json-smart through 2.6.0 Strict-Mode Validation Bypass via 0x1A Character
    cvelistv5
  • 20 OCT 15:40Z
    json-smart through 2.6.0 Strict-Mode Validation Bypass via 0x1A Character
    cvelistv5