Security exception in com.alibaba.fastjson2.JSONReader.readArray
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=431584944 ``` Crash type: Security exception Crash state: com.alibaba.fastjson2.JSONReader.readArray java.base/java.nio.charset.CharsetEncoder.<init> java.base/java.nio.charset.CharsetEncoder.<init> ```
AI Analysis
Technical Summary
The vulnerability involves a security exception crash occurring in the JSONReader.readArray method of the fastjson2 library, as identified by OSS-Fuzz. The crash stack trace implicates the java.nio.charset.CharsetEncoder constructor, suggesting an issue during character set encoding initialization when reading JSON arrays. The affected versions include a wide range of fastjson2 releases from 2.0.32 through 2.0.63 and their Android variants. No further technical details, such as root cause or exploitability, are provided in the available data.
Potential Impact
The impact is a security exception crash in the JSON parsing functionality of fastjson2, which could potentially lead to denial of service or application instability when processing certain JSON inputs. No evidence of code execution or data leakage is provided. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fixes or patches have been referenced in the available data. Users should monitor the fastjson2 project and OSS-Fuzz reports for updates and apply any forthcoming patches promptly.
Security exception in com.alibaba.fastjson2.JSONReader.readArray
Description
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=431584944 ``` Crash type: Security exception Crash state: com.alibaba.fastjson2.JSONReader.readArray java.base/java.nio.charset.CharsetEncoder.<init> java.base/java.nio.charset.CharsetEncoder.<init> ```
Affected software
pkg:generic/fastjson2Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability involves a security exception crash occurring in the JSONReader.readArray method of the fastjson2 library, as identified by OSS-Fuzz. The crash stack trace implicates the java.nio.charset.CharsetEncoder constructor, suggesting an issue during character set encoding initialization when reading JSON arrays. The affected versions include a wide range of fastjson2 releases from 2.0.32 through 2.0.63 and their Android variants. No further technical details, such as root cause or exploitability, are provided in the available data.
Potential Impact
The impact is a security exception crash in the JSON parsing functionality of fastjson2, which could potentially lead to denial of service or application instability when processing certain JSON inputs. No evidence of code execution or data leakage is provided. No known exploits have been reported in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. No official fixes or patches have been referenced in the available data. Users should monitor the fastjson2 project and OSS-Fuzz reports for updates and apply any forthcoming patches promptly.
Technical Details
- Gcve Source
- db.gcve.eu
- Osv Id
- OSV-2025-547
- Osv Schema Version
- 1.7.3
- Ecosystems
- ["OSS-Fuzz"]
Threat ID: 6a6ae5639c2644c7f89b4f9c
Added to database: 07/30/2026, 05:47:15 UTC
Last enriched: 07/30/2026, 07:32:59 UTC
Last updated: 09/09/2026, 17:43:09 UTC
Views: 178
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