OSV-2026-1429
Use-of-uninitialized-value in nlohmann::json_abi_v3_12_0::detail::binary_reader<nlohmann::json_abi_v3_12_0::ba
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=575915982
Crash type: Use-of-uninitialized-value
Crash state:
nlohmann::json_abi_v3_12_0::detail::binary_reader<nlohmann::json_abi_v3_12_0::ba
nlohmann::json_abi_v3_12_0::detail::binary_reader<nlohmann::json_abi_v3_12_0::ba
nlohmann::json_abi_v3_12_0::basic_json<std::__1::map, std::__1::vector, std::__1
What each source reports
OSV No score
Use-of-uninitialized-value in nlohmann::json_abi_v3_12_0::detail::binary_reader<nlohmann::json_abi_v3_12_0::ba
OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=575915982
Crash type: Use-of-uninitialized-value
Crash state:
nlohmann::json_abi_v3_12_0::detail::binary_reader<nlohmann::json_abi_v3_12_0::ba
nlohmann::json_abi_v3_12_0::detail::binary_reader<nlohmann::json_abi_v3_12_0::ba
nlohmann::json_abi_v3_12_0::basic_json<std::__1::map, std::__1::vector, std::__1
- Record
OSV-2026-1429- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
jsonOSS-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-2026-1429 is a vulnerability with no CVSS score yet in json, published October 22, 2026. No source lists public exploit code. A source reports a fix.