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CVE-2022-29185

18
FAUCET Score

CVE-2022-29185 affects the totp-rs Rust library, which is used for generating time-based one-time passwords (TOTP). Prior to version 1.1.0, the library's token comparison was not constant-time, creating a theoretical side-channel vulnerability. This medium-severity vulnerability (CVSS 4.4) requires high privileges and a high attack complexity, as an attacker would need to know the user's password beforehand to potentially guess TOTP tokens. There is no evidence of active exploitation, no known exploit code, and minimal community discussion or media coverage surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
< 1.1.0CPE matchmatch criteria
cpe:2.3:a:totp-rs_project:totp-rs:*:*:*:*:*:rust:*:*

CVSS Data

CVSS version used by this source: 3.1

4.2MEDIUM

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

Attack Vector
NETWORK
Attack Complexity
HIGH
Privileges Required
HIGH
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
0.5
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.81%
Probability of exploitation in next 30 days
EPSS Percentile
53.0%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0081 is in the 69th percentile among its peer group of 687 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.2 Bluesky, 0.0 Mastodon, and 0.2 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.2 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

rustpatch availablevia ghsa
Product: totp-rsFixed in: 1.1.0

Vendor Advisories (1)

rustGHSA-8vxv-2g8p-2249medium

Observable Timing Discrepancy in totp-rs

May 24, 2022

References

github.com / constantoine/totp-rs/issues/13
Issue TrackingThird Party Advisory
github.com / constantoine/totp-rs/releases/tag/v1.1.0
Release NotesThird Party Advisory
github.com / constantoine/totp-rs/security/advisories/GHSA-8vxv-2g8p-2249
Third Party Advisory