https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-05T03:55:25.279450+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2024-36400 CVE-2024-36400 — nano-id is unable to generate the correct character set 2026-10-05T03:55:25.281619+00:00

Affected: viz-rs nano-id

nano-id is a unique string ID generator for Rust. Affected versions of the nano-id crate incorrectly generated IDs using a reduced character set in the `nano_id::base62` and `nano_id::base58` functions. Specifically, the `base62` function used a character set of 32 symbols instead of the intended 62 symbols, and the `base58` function used a character set of 16 symbols instead of the intended 58 symbols. Additionally, the `nano_id::gen` macro is also affected when a custom character set that is not a power of 2 in size is specified. It should be noted that `nano_id::base64` is not affected by this vulnerability. This can result in a significant reduction in entropy, making the generated IDs predictable and vulnerable to brute-force attacks when the IDs are used in security-sensitive contexts such as session tokens or unique identifiers. The vulnerability is fixed in 0.4.0.

 https://cve.radiocsirt.org/vuln/ghsa-2hfw-w739-p7x5 Withdrawn: GHSA-2hfw-w739-p7x5 — Duplicate Advisory: nano-id reduced entropy due to inadequate character set usage 2026-10-05T03:55:25.281688+00:00

Withdrawn by the publisher.

Affected: crates.io: nano-id

## Duplicate Advisory This advisory has been withdrawn because it is a duplicate of GHSA-9hc7-6w9r-wj94. This link is maintained to preserve external references.

## Original Description ## Description

Affected versions of the nano-id crate incorrectly generated IDs using a reduced character set in the `nano_id::base62` and `nano_id::base58` functions. Specifically, the `base62` function used a character set of 32 symbols instead of the intended 62 symbols, and the `base58` function used a character set of 16 symbols instead of the intended 58 symbols. Additionally, the `nano_id::gen` macro is also affected when a custom character set that is not a power of 2 in size is specified.

It should be noted that `nano_id::base64` is not affected by this vulnerability.

## Impact

This can result in a significant reduction in entropy, making the generated IDs predictable and vulnerable to brute-force attacks when the IDs are used in security-sensitive contexts such as session tokens or unique identifiers.

## Patches

The flaws were corrected in commit [a9022772b2f1ce38929b5b81eccc670ac9d3ab23](https://github.com/viz-rs/nano-id/commit/a9022772b2f1ce38929b5b81eccc670ac9d3ab23) by updating the the `nano_id::gen` macro to use all specified characters correctly.

## PoC

```rust use std::collections::BTreeSet;

fn main() { test_base58(); test_base62(); }

fn test_base58() { let mut produced_symbols = BTreeSet::new();

for _ in 0..100_000 { id = "RUSTSEC-2024-0343"…