Java serialized object (Base64)
ID java_serialized_base64
DatatypeNot PIIDraft
This record is a draft: it has not been reviewed yet and may be incomplete or wrong. Do not rely on it for compliance decisions. Help improve it (see CONTRIBUTING.md).
Java object serialization stream encoded in Base64. Every stream starts with the magic number 0xACED and the version 5, so its Base64 form starts with rO0AB. Such values in cookies, parameters or files can lead to insecure deserialization.
- Categories
- Software development
- Countries
- Global (not tied to a country)
- Languages
- Common to most languages
- Quality
- 70/100 · missing: examples, mapping (Wikidata, Schema.org, ...), translation
- Metacrafter rules
- no detection rule yet
- Supported by tools
- pyWhat
Regular expression
^rO0AB[A-Za-z0-9+/]*={0,2}$Python re syntax.
Examples
| Value | Description |
|---|---|
| rO0A invalid | Shorter than the stream header |
Sources
Use this record
- Page URL:
https://registry.apicrafter.io/datatype/java_serialized_base64 - JSON: API v1 · legacy shape (used by metacrafter) · Markdown (for LLMs)
- Improve it: edit
data/datatypes/any/software/java_serialized_base64.yamlon GitHub