CVE-2023-46233Network attack vector

Secret recovery via one-iteration PBKDF2 default

Published Oct 25, 2023 · Updated Jun 23, 2026

Weak PBKDF2 defaults in Brix crypto-js before 4.2.0 allow attackers to recover protected secrets through offline brute force. The PBKDF2 configuration in src/pbkdf2.js selects SHA-1 and one iteration when callers omit options, removing the intended computational cost. Exploitation requires access to a derived value and affects only applications that rely on the defaults, but recovered keys or passwords can expose or undermine protected data.

CVSS severity9.1
Critical
EPSS probability0.64%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Weak PBKDF2 defaults in Brix crypto-js before 4.2.0 allow attackers to recover protected secrets through offline brute force. The PBKDF2 configuration in src/pbkdf2.js selects SHA-1 and one iteration when callers omit options, removing the intended computational cost. Exploitation requires access to a derived value and affects only applications that rely on the defaults, but recovered keys or passwords can expose or undermine protected data.

The record

CVE
CVE-2023-46233
Published
Oct 25, 2023
Updated
Jun 23, 2026
Vendor
Brix
Product
crypto-js
Classifications
CWE-328, CWE-916, T1110.002
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Oct 25, 2023CVE publishedPublication date reported by the CVE source.
  2. Jun 23, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=< 4.2.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Brix · crypto-jsversion=< 4.2.0

Published CVSS scores

9.1GitHub CNACVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-328Use of Weak Hash
CWE-916Use of Password Hash With Insufficient Computational Effort
T1110.002Password Cracking

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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