Use of Incorrectly-Resolved Name or Reference Affecting cjson package, versions *


Severity

Recommended
medium

Based on Ubuntu security rating.

Threat Intelligence

EPSS
0.26% (18th percentile)

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  • Snyk IDSNYK-UBUNTU2204-CJSON-18759872
  • published29 Aug 2026
  • disclosed11 Aug 2026

Introduced: 11 Aug 2026

CVE-2026-29036  (opens in a new tab)
CWE-706  (opens in a new tab)

How to fix?

There is no fixed version for Ubuntu:22.04 cjson.

NVD Description

Note: Versions mentioned in the description apply only to the upstream cjson package and not the cjson package as distributed by Ubuntu. See How to fix? for Ubuntu:22.04 relevant fixed versions and status.

cJSON versions 1.5.0 through 1.7.19 contain an incorrectly-resolved name or reference vulnerability in the decode_pointer_inplace() function within cJSON_Utils.c that allows unauthenticated attackers to cause JSON Patch operations to target wrong object keys by supplying crafted JSON Pointer escape sequences (~0 or ~1) in patch paths. Attackers can submit malicious RFC 6902 JSON Patch input to applications using cJSONUtils_ApplyPatches() or cJSONUtils_ApplyPatchesCaseSensitive() to silently corrupt data or delete unintended keys, potentially bypassing authorization controls in applications that rely on JSON Patch for access-controlled data modification.

CVSS Base Scores

version 3.1