`cgmath` is unmaintained

The cgmath crate is no longer maintained. Users should consider switching to a maintained alternative...

`sha-rust` was removed from crates.io for malicious code

It appeared to be attempting to steal credentials from local files...

Missing check in ZK proof in CGGMP21 Threshold Signing Protocol

Vulnerability concerns a missing check in the ZK proof that enables an attack in which single malicious signer can reconstruct full private key. Patches cggmp21 v0.6.3 is a patch release that contains a fix that introduces this specific missing check. However, we recommend upgrading to cggmp24...

rand_os crate is unmaintained

The randos crate is deprecated and no longer actively maintained, as OsRng is now part of randcore. If you are using this crate, consider upgrading to randcore 0.5.1 or higher...

`unic-bidi` is unmaintained

All Unicode crates that are part of https://github.com/open-i18n/rust-unic are unmaintained. Recommended alternatives - unicode-bidi...

`unic-ucd-category` is unmaintained

All Unicode crates that are part of https://github.com/open-i18n/rust-unic are unmaintained. Recommended alternatives - icuproperties...

DoS vulnerability on `alloy_dyn_abi::TypedData` hashing

An uncaught panic triggered by malformed input to alloydynabi::TypedData could lead to a denial-of-service DoS via eip712signinghash. Software with high availability requirements such as network services may be particularly impacted. If in use, external auto-restarting mechanisms can partially...

SHA-1 collision attacks are not detected

Summary gitoxide uses SHA-1 hash implementations without any collision detection, leaving it vulnerable to hash collision attacks. Details gitoxide uses the sha1smol or sha1 crate, both of which implement standard SHA-1 without any mitigations for collision attacks. This means that two distinct G...

`custom-req-on-workers` was removed from crates.io for malicious code

custom-req-on-workers was part of a campaign that attempted to exfiltrate environmental data from the host. The malicious crate had 1 version published in January 2025, and had no evidence of actual usage. This crate had no dependencies on crates.io...

olm-sys: wrapped library unmaintained, potentially vulnerable

After several cryptographic vulnerabilities in libolm were disclosed publicly, the Matrix Foundation has officially deprecated the library. olm-sys is a thin wrapper around libolm and is now deprecated and potentially vulnerable in kind. Users of olm-sys and its higher-level abstraction, olm-rs,...

`opentelemetry_api` has been merged into the `opentelemetry` crate

Last release was on 2023-07-30. opentelemetryapi has been moved into the opentelemetry crate. Please use the opentelemetry crate going forward...

The maintainer of chrono-english is unresponsive

All versions will encounter compilation errors with a chrono version 0.4.35, due to backward incompatible API changes. User conradludgade reworked the original crate and created a fork with the same API surface called interim. The fork is better structured and passes the same test suite as...

`win_run_rs` was removed from crates.io for malicious code

This crate was part of a typosquatting malware cluster published by the user Kraded to run an arbitrary malware payload on Windows hosts. This advisory is to retrospectively document this attempted attack. The version information and download records of the malicious crate are no longer available...

Unaligned read of `*const *const c_char` pointer

Affected versions dereference a potentially unaligned pointer. The pointer is commonly unaligned in practice, resulting in undefined behavior. In some build modes, this is observable as a panic followed by abort. In other build modes the UB may manifest in some other way, including the possibilit...

`lazystatic` was removed from crates.io for malicious code

This crate was part of a typosquatting malware cluster published by the malicious user amaperf and contained a malware payload in build.rs to exfiltrate host information to the attacker. This advisory is to retrospectively document this attempted attack. The version information and download recor...

`if-cfg` was removed from crates.io for malicious code

This crate was part of a typosquatting malware cluster published by the malicious user amaperf and contained a malware payload in build.rs to exfiltrate host information to the attacker. This advisory is to retrospectively document this attempted attack. The version information and download recor...

atomic-polyfill is unmaintained

The author has archived the GitHub repository and mentions deprecation in project's README. Possible alternatives portable-atomic...

crate has been renamed to `embedded-alloc`

This crate has been renamed from alloc-cortex-m to embedded-alloc. The new repository location is:...

pty is unmaintained

The repository hasn't received any updates since Jun 25, 2017 and the author is unresponsive. Maintained alternatives include: tokio-pty-process pty-process...

Delegate functions are missing `Send` bound

Affected versions of this crate did not require event handlers to have Send bound despite there being no guarantee of them being called on any particular thread, which can potentially lead to data races and undefined behavior. The flaw was corrected in commit afe3252 by adding Send bounds...

Use After Free in lucet-runtime

There is a bug in the main branch of Lucet's lucet-runtime that allows a use-after-free in an Instance object that could result in memory corruption, data race, or other related issues. This bug was introduced early in the development of Lucet and is present in all releases. As a result of this...

`DecimalArray` does not perform bound checks on accessing values and offsets

DecimalArray performs insufficient bounds checks, which allows out-of-bounds reads in safe code if the length of the backing buffer is not a multiple of 16...

rusttype is Unmaintained

The maintainer has advised this crate is deprecated and will not receive any maintenance. The maintainer has further advised to migrate over to abglyph. Last release seems to have been over two years ago. Possible Alternatives The below list has not been vetted in any way and may or may not conta...

ncollide2d is unmaintained

The maintainer has advised that this crate is passively-maintained and that it is being superseded by the Parry project...

interfaces2 is unmaintained, use interfaces instead

The interfaces2 crate is not maintained any more; use interfaces instead...

`term_size` is unmaintained; use `terminal_size` instead

The termsize crate is no longer maintained. Consider using terminalsize instead...

multi_mut is Unmaintained

Last release was about 6 years ago. There is an outstanding soundness issue. The maintainer has not responded for two years to the existing soundness issue. Rust compiler has enabled errors relating to LLVM noalias rules and may not compile anymore where as the old compiler versions had turned...

`arone` was removed from crates.io due to malicious code

We identified that arone contained malicious code executed through a build script. This crate had 7 versions, with the most recent one being published at 2026-08-18. The crate was removed from crates.io on 2026-08-20 and the user account was locked. This crate was used as part of a malware campai...

Panic-safety unsoundness in `truncate_back`, `truncate_front`, `clear`, and `extend_from_slice` (use-after-free / double-free)

Several methods in circular-buffer drop elements before updating the buffer's start/end metadata. If an element's Drop panics during the drop, the metadata update is skipped, so the buffer still treats the already-dropped elements as live. When the buffer is later dropped or used after the panic ...

`nostr-relay-pool` is unmaintained

The nostr-relay-pool crate is no longer actively maintained as a standalone crate. Its functionality has been incorporated into nostr-sdk starting with version 0.45.0. Users should migrate to nostr-sdk...

Relay authentication challenges can exhaust memory

The SDK forwarded every NIP-42 AUTH challenge received from a relay through an unbounded command queue. Challenge handling can wait for an asynchronous signer or user interaction, so receiving challenges was substantially faster than completing the corresponding authentication work. A malicious...

`Enum` trait allows type confusion when manually implemented

Affected versions of this crate did not require the element type of the Array associated type in the Enum trait to match the array's generic parameter V. This can result in type confusion, and consequently memory corruption, when a manual Enum implementation declares an Array whose elements are n...

Integer overflow in tract-nnef NNEF tensor parser leads to out-of-bounds read on model load

tractnnef::tensors::readtensor builds a tensor shape from attacker-controlled 32-bit dimensions and computes both the element count productshape and the byte allocation productshape sizeofdt with unchecked usize arithmetic. In release builds no overflow-checks both products wrap modulo 2^64. A...

Insufficient archive validation can cause out-of-bounds reads in archives containing Rc/Arc

Shared pointer validation keyed already-validated pointees by their address and type, but did not include pointer metadata. For unsized pointees, an archive could therefore contain multiple Rc, Arc, or weak pointers that shared a data address but used different metadata, such as different slice...

Insufficient archive validation can cause out-of-bounds reads in archives containing hash tables

The archive validator could accept certain malformed relative pointers and invalid ArchivedHashTable states. In particular, the hash table verifier did not ensure that the number of occupied buckets matched the table's declared length. A crafted archive could pass the checks performed by the safe...

im-rc is unmaintained

The im-rc crate is unmaintained; all versions are affected. The GitHub repository was archived by the owner on 2026-05-03. imbl is a maintained fork of the im crate, but we're not aware of maintained alternative to im-rc at this time...

Incorrect Output of Incremental Portable SHAKE API

The incremental squeeze functions in the portable SHAKE XOF API, when attempting to squeeze more than RATE 168 for SHAKE128, 136 for SHAKE256 bytes, performed an additional permutation of the state before producing the first output block, thus discarding the first block of RATE bytes of valid XOF...

`uniswap-utils` was removed from crates.io for malicious code

It depended on the evm-units crate, which appeared to be attempting to steal cryptocurrency...

Undefined behavior in index_of_ptr with empty slices

The safe function indexofptr causes undefined behavior when called with an empty slice. The issue occurs in the line ptr.addslice.len - 1 which underflows when slice.len is 0, creating a pointer with a massive offset. According to Rust's safety rules, creating such a pointer causes immediate...

crypto-hash crate is unmaintained

The crypto-hash crate is no longer actively maintained. If you rely on this crate, consider switching to a maintained alternative. Recommended alternatives - crypto-hashes...

custom_derive crate is unmaintained

The customderive crate is no longer actively maintained. If you rely on this crate, consider switching to a maintained alternative. Recommended alternatives - strum - macro-attr...

Multiple memory corruption vulnerabilities in safe APIs

The crate has the following vulnerabilities: - The public trait arenavec::common::AllocHandle allows the return of raw pointers through its methods allocate and allocateorextend. However, the trait is not marked as unsafe, meaning users of the crate may implement it under the assumption that the...

`xcb::Connection::connect_to_fd*` functions violate I/O safety

The API of xcb::Connection has constructors which allow an arbitrary RawFd to be used as a socket connection. On either failure of these constructors or on the drop of Connection, it closes the associated file descriptor. Thus, a program which uses an OwnedFd such as a UnixStream as the file...

Host panic with `fd_renumber` WASIp1 function

This is an entry in the RustSec database for the Wasmtime security advisory located at https://github.com/bytecodealliance/wasmtime/security/advisories/GHSA-fm79-3f68-h2fc. For more information see the GitHub-hosted security advisory...

soundness issue and unmaintained

FastMap::get lacks sufficient checks to its parameter index and is used to unsafely get a Vec element. fastidmap is unmaintained...

`DTriangle` accessors may read out of bounds in affected versions

In affected versions, DTriangle::neighborbyorder and DTriangle::vertexbyorder were public safe functions that accepted an arbitrary order value. These functions used order to access fixed-size internal arrays with getunchecked, without checking whether order was within bounds. Calling these metho...

Safe API can cause heap-buffer-overflow

ffi::nstr should be marked unsafe, since a pointer to a buffer without a trailing 0 value will cause a heap buffer overflow...

*ring* is unmaintained

The author has announced an indefinite hiatus in its development, noting that any reported security vulnerabilities may go unaddressed for prolonged periods of time. Update: security maintenance only After this advisory was published, the author graciously agreed to give access to the rustls team...

`rands` was removed from crates.io for malicious code

This crate attempted to typosquat the rand crate, and would link in a malware payload on macOS and Linux hosts when built. This advisory is to retrospectively document this attempted attack. The version information and download records of the malicious crate are no longer available. The related...

ssl::select_next_proto use after free

In openssl versions before 0.10.70, ssl::selectnextproto can return a slice pointing into the server argument's buffer but with a lifetime bound to the client argument. In situations where the server buffer's lifetime is shorter than the client buffer's, this can cause a use after free. This coul...