Application crash via unbounded recursive JSON parsing
Published Mar 13, 2023 · Updated Feb 27, 2025
Uncontrolled recursion in Netplex json-smart before 2.4.9 allows remote attackers to crash an application with deeply nested JSON. JSONParserBase recursively enters array and object parsing for each opening delimiter without limiting nesting depth, exhausting the Java thread stack. Exploitation requires a consuming application to pass attacker-controlled JSON to the library, and the resulting StackOverflowError interrupts that application process.
Summary
What happened
Uncontrolled recursion in Netplex json-smart before 2.4.9 allows remote attackers to crash an application with deeply nested JSON. JSONParserBase recursively enters array and object parsing for each opening delimiter without limiting nesting depth, exhausting the Java thread stack. Exploitation requires a consuming application to pass attacker-controlled JSON to the library, and the resulting StackOverflowError interrupts that application process.
The record
- CVE
- CVE-2023-1370
- Published
- Mar 13, 2023
- Updated
- Feb 27, 2025
- Vendor
- Netplex
- Product
- json-smart
- Classifications
- CWE-674, CAPEC-230, CAPEC-231, T1499.004
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Mar 13, 2023CVE publishedPublication date reported by the CVE source.
- Feb 27, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
Compare these published version ranges with your installed build and any vendor patches.
- Affected versionversion=0 <2.4.9
What conditions does exploitation require?
What is affected?
Published CVSS scores
CVSS describes severity. EPSS estimates exploitation probability.
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
- JFrog deeply nested JSON proof of conceptproof of concept · demonstrated
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Technologies
Your stack
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Your stack
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