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CVE-2026-67215 is a denial-of-service vulnerability in cJSON through version 1.7.19 affecting RFC 6902 JSON Patch handling. When untrusted patch input is processed by cJSONUtils_ApplyPatches() or cJSONUtils_ApplyPatchesCaseSensitive(), a crafted sequence of add and copy operations can graft duplicated subtrees and progressively amplify document depth beyond the parser's normal nesting limit. In the resulting object graph, cleanup via cJSON_Delete() performs recursive traversal without a depth bound, and the duplication guard in cJSON_Duplicate() uses CJSON_CIRCULAR_LIMIT set to 10000, substantially above the parser's 1000-level nesting limit. This mismatch allows attacker-controlled patch input to drive recursion deep enough to exhaust the thread stack and terminate the process.
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7 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A specific cJSON vulnerability included in AISLE's public registry growth summary.
An uncontrolled recursion vulnerability in cJSON through 1.7.19 that can cause stack exhaustion and denial of service when malicious RFC 6902 JSON Patch input is processed.
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Cross-references every affected SKU, including bundled OEM variants.
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