Predictive Vulnerability Intelligence.

Product

  • Product
  • Pricing
  • Documentation

Company

  • About
  • Partnerships
  • Blog
  • Support

Legal

  • Terms
  • Privacy
  • Data Licensing

© 2026 FAUCET Technologies LLC. All rights reserved.

CVE-2022-23653

19
FAUCET Score

CVE-2022-23653 is a Time-of-Check-Time-of-Use (TOCTOU) race condition vulnerability affecting Linux and Mac versions of the Backblaze B2 Command Line Tool up to version 3.2.0. This flaw allows a local attacker to disclose API keys by exploiting a brief window where the account information database file is world-readable before its permissions are correctly set. Rated Medium severity (CVSS 4.7), it requires local access and high attack complexity, but can lead to complete confidentiality compromise of API keys. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this vulnerability.

Impacted Technologies

VendorProductVersion(s)CPE
<= 3.2.0CPE matchmatch criteria
cpe:2.3:a:backblaze:b2_command_line_tool:*:*:*:*:*:linux:*:*
<= 3.2.0CPE matchmatch criteria
cpe:2.3:a:backblaze:b2_command_line_tool:*:*:*:*:*:mac:*:*

CVSS Data

CVSS version used by this source: 3.1

4.7MEDIUM

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

Attack Vector
LOCAL
Attack Complexity
HIGH
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
1.0
Impact Score
3.6
CvssVersion
3.1

Exploit Intelligence

EPSS Score
0.21%
Probability of exploitation in next 30 days
EPSS Percentile
11.3%
Percentile rank of EPSS score among Peer Group
As of 2026-07-26
Model: v2026.06.15
This CVE's current EPSS score of 0.0021 is in the 52nd percentile among its peer group of 1,297 CVEs.

Social Chatter

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

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.4 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
pippatch availablevia ghsa
Product: b2Fixed in: 3.2.1

Vendor Advisories (1)

pipGHSA-8wr4-2wm6-w3prmedium

B2 Command Line Tool TOCTOU application key disclosure

Feb 24, 2022

References

github.com / Backblaze/B2_Command_Line_Tool/commit/c74029f9f75065e8f7e3c3ec8e0a23fb8204feeb
PatchThird Party Advisory
github.com / Backblaze/B2_Command_Line_Tool/security/advisories/GHSA-8wr4-2wm6-w3pr
Third Party Advisory