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MEDIUM severity

CVE-2024-33669 — passbolt-browser-extension

MEDIUM

CVE-2024-33669 is a medium-severity (CVSS 6.1) Information Exposure vulnerability in passbolt-browser-extension. A fix is available for passbolt-browser-extension — see the affected versions and patch details below.

Passbolt Browser Extension leaks password information

Also known asGHSA-xfq4-78j7-v594
Published
Updated
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Nov 8, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

Proof-of-concept exploit code exists

  • CISA’s SSVC triage found public proof-of-concept exploit code for this CVE, though no confirmed active exploitation.

Exploitation and automatability from CISA’s SSVC triage for CVE-2024-33669.

EPSS Exploitation Probability

via FIRST.org ↗
0.6%probability of exploitation in next 30 days
Lower Risk0.00%
Lower risk than most CVEs51th percentile — riskier than 51% of all scored CVEsHighest risk
0.00%0.38%0.76%1.14%0.2%0.6%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

1 pkg affected

How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.

0other npm packages depend on this — each one inherits the vulnerability until it's patched upstream
passbolt-browser-extensionnpm
210downloads / week

Description

An issue was discovered in Passbolt Browser Extension before 4.6.2. It can send multiple requests to HaveIBeenPwned while a password is being typed, which results in an information leak. This allows an attacker capable of observing Passbolt's HTTPS queries to the Pwned Password API to more easily brute force passwords that are manually typed by the user.

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
📦npmpassbolt-browser-extensionall versions4.6.2npm install passbolt-browser-extension@4.6.2

Affected Products

1 product · 1 configurations
Application
passbolt browser extensionpassbolt
< 4.6.2
range

Detection & mitigation playbook

Open-source dependency

  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for passbolt-browser-extension, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update passbolt-browser-extension to 4.6.2 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2024-33669 is resolved across your whole dependency graph.

  3. Workarounds

    Assume what was exposed is already known: rotate any credential, token or key that the affected component could return, restrict the endpoint to callers that genuinely need it, and strip sensitive fields from responses and error output at the boundary rather than relying on the client not to read them.

Frequently Asked Questions

An issue was discovered in Passbolt Browser Extension before 4.6.2. It can send multiple requests to HaveIBeenPwned while a password is being typed, which results in an information leak. This allows an attacker capable of observing Passbolt's HTTPS queries to the Pwned Password API to more easily brute force passwords that are manually typed by the user.
O3 Security · Impact-Aware SCA

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CVE-2024-33669: passbolt-browser — Fixed in 4.6.2