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CVE-2024-36400

27
FAUCET Score

CVE-2024-36400 affects the nano-id Rust crate, specifically its base58, base62, and custom character set generation functions, which incorrectly use reduced character sets, leading to significantly lower entropy in generated IDs. This critical vulnerability (CVSS 9.8) allows for predictable IDs, making them susceptible to brute-force attacks if used in security-sensitive contexts like session tokens. While the vulnerability is fixed in version 0.4.0, there is currently no evidence of active exploitation, public exploit code, or significant community discussion.

Impacted Technologies

VendorProductVersion(s)CPE
< 0.4.0CPE matchmatch criteria
cpe:2.3:a:viz:nano_id:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

9.4CRITICAL

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
LOW
Exploitability Score
3.9
Impact Score
5.5
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.75%
Probability of exploitation in next 30 days
EPSS Percentile
51.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0075 is in the 34th percentile among its peer group of 36,862 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.3 Bluesky, 0.3 Mastodon, and 2.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (2)

github_advisorypatch availablevia nvd_reference
View patch
rustpatch availablevia ghsa
Product: nano-idFixed in: 0.4.0

Vendor Advisories (1)

rustGHSA-9hc7-6w9r-wj94critical

Unable to generate the correct character set

Jun 4, 2024

References

github.com / viz-rs/nano-id/commit/a9022772b2f1ce38929b5b81eccc670ac9d3ab23
Patch
github.com / viz-rs/nano-id/security/advisories/GHSA-9hc7-6w9r-wj94
ExploitPatchVendor Advisory