docs: add warning notes about using NippyJar and Compact encoding formats with untrusted data (#8345)

README.md

@@ -42,7 +42,7 @@ Reth is performant, feature-complete, [Cancun-ready](https://paradigmxyz.github.
 
 We actively recommend professional node operators to switch to Reth in production for performance and cost reasons in use cases where high performance with great margins is required such as RPC, MEV, Indexing, Simulations, and P2P activities.
 
-While we are aware of parties running Reth staking nodes in production, we do *not* encourage usage in production staking environments by non-professionals until our audits are done, and the 1.0 version of Reth is released, but we are available to support without warranty or liability. 
+While we are aware of parties running Reth staking nodes in production, we do *not* encourage usage in production staking environments by non-professionals until our audits are done, and the 1.0 version of Reth is released, but we are available to support without warranty or liability.
 
 More historical context below:
 * We are releasing 1.0 "production-ready" stable Reth once our Reth & Revm audits are done. ETA ~May 2024.
@@ -155,5 +155,9 @@ None of this would have been possible without them, so big shoutout to the teams
 - [Erigon](https://github.com/ledgerwatch/erigon) (fka Turbo-Geth): Erigon pioneered the ["Staged Sync" architecture](https://erigon.substack.com/p/erigon-stage-sync-and-control-flows) that Reth is using, as well as [introduced MDBX](https://github.com/ledgerwatch/erigon/wiki/Choice-of-storage-engine) as the database of choice. We thank Erigon for pushing the state of the art research on the performance limits of Ethereum nodes.
 - [Akula](https://github.com/akula-bft/akula/): Reth uses forks of the Apache versions of Akula's [MDBX Bindings](https://github.com/paradigmxyz/reth/pull/132), [FastRLP](https://github.com/paradigmxyz/reth/pull/63) and [ECIES](https://github.com/paradigmxyz/reth/pull/80) . Given that these packages were already released under the Apache License, and they implement standardized solutions, we decided not to reimplement them to iterate faster. We thank the Akula team for their contributions to the Rust Ethereum ecosystem and for publishing these packages.
 
+## Warning
+
+The `NippyJar` and `Compact` encoding formats and their implementations are designed for storing and retrieving data internally. They are not hardened to safely read potentially malicious data.
+
 [book]: https://paradigmxyz.github.io/reth/
 [tg-url]: https://t.me/paradigm_reth

crates/storage/codecs/src/lib.rs

@@ -1,5 +1,9 @@
 //! Compact codec.
 //!
+//! *Warning*: The `Compact` encoding format and its implementations are
+//! designed for storing and retrieving data internally. They are not hardened
+//! to safely read potentially malicious data.
+//!
 //! ## Feature Flags
 //!
 //! - `alloy`: [Compact] implementation for various alloy types.

crates/storage/nippy-jar/src/lib.rs

@@ -1,4 +1,8 @@
 //! Immutable data store format.
+//!
+//! *Warning*: The `NippyJar` encoding format and its implementations are
+//! designed for storing and retrieving data internally. They are not hardened
+//! to safely read potentially malicious data.
 
 #![doc(
     html_logo_url = "https://raw.githubusercontent.com/paradigmxyz/reth/main/assets/reth-docs.png",