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JSON CVEs with a proof of concept

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Overview 19 matches · 0 protected · 0 exploited · 0 CISA KEV · 1 public PoC · 0 EPSS ≥ 0.5
19matches 0protected0.0% 0exploited0.0% 0CISA KEV0.0% 1public PoC5.3% 0EPSS ≥ 0.50.0%
Protected by Waratek 0 0.0% Rule in development 0 0.0% Mitigation candidate 1 5.3% No exploit published 18 94.7%
Critical 3 15.8% High 14 73.7% Medium 2 10.5% Low 0 0.0% None 0 0.0% Unknown 0 0.0%
blocked by ARMR today 0 0.0% partly blocked 0 0.0% not blocked 19 100.0% not established 0 0.0% unrecorded 0 0.0%
Exploited 0 0.0% Working exploit published 0 0.0% Proof of concept only 19 100.0% Forecast only 0 0.0% No public exploit 0 0.0%
split by peak 7 / quarter
No exploit published: 18Mitigation candidate: 1 Medium: 2High: 14Critical: 3 not blocked: 19 Proof of concept only: 19
Q2 221 Mitigation candidate1 Critical1 not blocked1 Proof of concept only1 Q3 220 Q4 223 No exploit published3 High3 not blocked3 Proof of concept only3 Q1 231 No exploit published1 High1 not blocked1 Proof of concept only1 Q2 237 No exploit published7 High7 not blocked7 Proof of concept only7 Q3 234 No exploit published4 Critical2 High2 not blocked4 Proof of concept only4 Q4 230 Q1 240 Q2 240 Q3 240 Q4 240 Q1 250 Q2 251 No exploit published1 Medium1 not blocked1 Proof of concept only1 Q3 250 Q4 250 Q1 261 No exploit published1 High1 not blocked1 Proof of concept only1 Q2 260 Q3 260 Q4 261 No exploit published1 Medium1 not blocked1 Proof of concept only1
Q2 22Q4 22Q2 23Q4 23Q2 24Q4 24Q2 25Q4 25Q2 26Q4 26
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CVE Severity Published▾ Status Exploitation Description
CVE-2026-59171 Medium 2026-11-06 No exploit published Proof of concept only JSON-java is a reference implementation of a JSON package in Java. From version 20150729 through 20260522, JSONTokener.nextSimpleValue can accumulate unbounded numeric tokens before JSONObject.stringToNumber passes them to BigInteger or BigDecimal conversion without a length limit. An application that parses attacker-controlled JSON or XML through JSONObject, JSONArray, or XML.toJSONObject can spend super-linear CPU time converting a sufficiently long numeric literal, blocking request-handling threads and causing denial of service. Strict mode and keep-strings settings in JSONParserConfiguration do not prevent the affected conversion path. Version 20260719 limits numeric conversion length.
CVE-2026-33013 High 2026-03-20 No exploit published Proof of concept only Micronaut Framework is a JVM-based full stack Java framework designed for building modular, easily testable JVM applications. Versions prior to both 4.10.16 and 3.10.5 do not correctly handle descending array index order during form-urlencoded body binding in theJsonBeanPropertyBinder::expandArrayToThreshold, which allows remote attackers to cause a DoS (non-terminating loop, CPU exhaustion, and OutOfMemoryError) via crafted indexed form parameters (e.g., authors[1].name followed by authors[0].name). This issue has been fixed in versions 4.10.16 and 3.10.5.
CVE-2025-3588 Medium 2025-04-14 No exploit published Proof of concept only A vulnerability, which was classified as problematic, has been found in joelittlejohn jsonschema2pojo 1.2.2. This issue affects the function apply of the file org/jsonschema2pojo/rules/SchemaRule.java of the component JSON File Handler. The manipulation leads to stack-based buffer overflow. Attacking locally is a requirement. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
CVE-2023-42278 High 2023-09-08 No exploit published Proof of concept only hutool v5.8.21 was discovered to contain a buffer overflow via the component JSONUtil.parse().
CVE-2023-42277 Critical 2023-09-08 No exploit published Proof of concept only hutool v5.8.21 was discovered to contain a buffer overflow via the component jsonObject.putByPath.
CVE-2023-42276 Critical 2023-09-08 No exploit published Proof of concept only hutool v5.8.21 was discovered to contain a buffer overflow via the component jsonArray.
CVE-2023-39685 High 2023-09-01 No exploit published Proof of concept only An issue in hjson-java up to v3.0.0 allows attackers to cause a Denial of Service (DoS) via supplying a crafted JSON string.
CVE-2023-35110 High 2023-06-14 No exploit published Proof of concept only An issue was discovered jjson thru 0.1.7 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.
CVE-2023-34620 High 2023-06-14 No exploit published Proof of concept only An issue was discovered hjson thru 3.0.0 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.
CVE-2023-34616 High 2023-06-14 No exploit published Proof of concept only An issue was discovered pbjson thru 0.4.0 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.
CVE-2023-34615 High 2023-06-14 No exploit published Proof of concept only An issue was discovered JSONUtil thru 5.0 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.
CVE-2023-34614 High 2023-06-14 No exploit published Proof of concept only An issue was discovered jmarsden/jsonij thru 0.5.2 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.
CVE-2023-34612 High 2023-06-14 No exploit published Proof of concept only An issue was discovered ph-json thru 9.5.5 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.
CVE-2023-34610 High 2023-06-14 No exploit published Proof of concept only An issue was discovered json-io thru 4.14.0 allows attackers to cause a denial of service or other unspecified impacts via crafted object that uses cyclic dependencies.
CVE-2023-1370 High 2023-03-22 No exploit published Proof of concept only [Json-smart](https://netplex.github.io/json-smart/) is a performance focused, JSON processor lib. When reaching a ‘[‘ or ‘{‘ character in the JSON input, the code parses an array or an object respectively. It was discovered that the code does not have any limit to the nesting of such arrays or objects. Since the parsing of nested arrays and objects is done recursively, nesting too many of them can cause a stack exhaustion (stack overflow) and crash the software.
CVE-2022-45690 High 2022-12-13 No exploit published Proof of concept only A stack overflow in the org.json.JSONTokener.nextValue::JSONTokener.java component of hutool-json v5.8.10 allows attackers to cause a Denial of Service (DoS) via crafted JSON or XML data.
CVE-2022-45689 High 2022-12-13 No exploit published Proof of concept only hutool-json v5.8.10 was discovered to contain an out of memory error.
CVE-2022-45688 High 2022-12-13 No exploit published Proof of concept only A stack overflow in the XML.toJSONObject component of hutool-json v5.8.10 allows attackers to cause a Denial of Service (DoS) via crafted JSON or XML data.
CVE-2022-25845 Critical 2022-06-10 Mitigation candidate Proof of concept only The package com.alibaba:fastjson before 1.2.83 are vulnerable to Deserialization of Untrusted Data by bypassing the default autoType shutdown restrictions, which is possible under certain conditions. Exploiting this vulnerability allows attacking remote servers. Workaround: If upgrading is not possible, you can enable [safeMode](https://github.com/alibaba/fastjson/wiki/fastjson_safemode).