OSV-2021-703
Container-overflow in unsigned long jsoncons::detail::escape_string<char, jsoncons::string_sink<std::_
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33781
Crash type: Container-overflow READ 1
Crash state:
unsigned long jsoncons::detail::escape_string<char, jsoncons::string_sink<std::_
jsoncons::basic_json_encoder<char, jsoncons::string_sink<std::__1::basic_string<
jsoncons::basic_json_visitor<char>::key
What each source reports
OSV No score
Container-overflow in unsigned long jsoncons::detail::escape_string<char, jsoncons::string_sink<std::_
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=33781
Crash type: Container-overflow READ 1
Crash state:
unsigned long jsoncons::detail::escape_string<char, jsoncons::string_sink<std::_
jsoncons::basic_json_encoder<char, jsoncons::string_sink<std::__1::basic_string<
jsoncons::basic_json_visitor<char>::key
- Record
OSV-2021-703- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
jsonconsOSS-Fuzz |
Commit ranges | Not evaluated |
Not evaluated means the source gave git commits or a range we can't read, so we can't tell which releases are affected. A fixed version beside it is the source’s own claim.
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
OSV-2021-703 is a vulnerability with no CVSS score yet in jsoncons, published April 29, 2021. No source lists public exploit code. A source reports a fix.