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/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:N/A:NWeakness enumeration
Affected software
| Vendor | Product | Versions |
|---|---|---|
| constantoine | 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
- NVD status
- Modified