CVE-2022-29185

Name: CVE-2022-29185
Creator: NVD / NIST
Published: 2022-05-20T20:15:10.14+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.4/10EPSS 0.79%

Last modified Jun 17, 2026

CVE-2022-29185 is a medium-severity vulnerability rated 4.4/10 on the CVSS scale. totp-rs is a Rust library that permits the creation of 2FA authentification tokens per time-based one-time password (TOTP). Prior to version 1.1.0, token comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. EPSS estimates a 0.79% chance of exploitation in the next 30 days.

Description

totp-rs is a Rust library that permits the creation of 2FA authentification tokens per time-based one-time password (TOTP). Prior to version 1.1.0, token comparison was not constant time, and could theorically be used to guess value of an TOTP token, and thus reuse it in the same time window. The attacker would have to know the password beforehand nonetheless. Starting with patched version 1.1.0, the library uses constant-time comparison. There are currently no known workarounds.

Metrics

CVSS 3.1

4.4/10

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

EPSS Probability

0.79%

51.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

Affected Software

Vendor	Product	Versions
Totp-Rs Project	Totp-Rs	< 1.1.0

References

https://github.com/constantoine/totp-rs/issues/13Issue Tracking, Third Party Advisory
https://github.com/constantoine/totp-rs/releases/tag/v1.1.0Release Notes, Third Party Advisory
https://github.com/constantoine/totp-rs/security/advisories/GHSA-8vxv-2g8p-2249Third Party Advisory
https://github.com/constantoine/totp-rs/issues/13Issue Tracking, Third Party Advisory
https://github.com/constantoine/totp-rs/releases/tag/v1.1.0Release Notes, Third Party Advisory
https://github.com/constantoine/totp-rs/security/advisories/GHSA-8vxv-2g8p-2249Third Party Advisory

Timeline

Published: May 20, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2022-29185?

How severe is CVE-2022-29185?

CVE-2022-29185 has a CVSS score of 4.4/10 (MEDIUM severity). The EPSS model estimates a 0.79% probability of exploitation in the next 30 days.

How do I fix CVE-2022-29185?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2022-29185?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST