CVE-2024-23339
hoolock does not block Prototype pollution with object-path related utilities
hoolock is a suite of lightweight utilities designed to maintain a small footprint when bundled. Starting in version 2.0.0 and prior to version 2.2.1, utility functions related to object paths (get, set, and update) did not block attempts to access or alter object prototypes. Starting in version 2.2.1, the get, set and update functions throw a TypeError when a user attempts to access or alter inherited properties.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- Low
- Availability
- Low
Exploit likelihood
What each source reports
CVE List Score used
hoolock does not block Prototype pollution with object-path related utilities
hoolock is a suite of lightweight utilities designed to maintain a small footprint when bundled. Starting in version 2.0.0 and prior to version 2.2.1, utility functions related to object paths (get, set, and update) did not block attempts to access or alter object prototypes. Starting in version 2.2.1, the get, set and update functions throw a TypeError when a user attempts to access or alter inherited properties.
- Record
CVE-2024-23339- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - Weakness
- CWE-1321
- Updated
- 2026-11-02
EUVDEUVD-2024-0244
hoolock is a suite of lightweight utilities designed to maintain a small footprint when bundled. Starting in version 2.0.0 and prior to version 2.2.1, utility functions related to object paths (get, set, and update) did not block attempts to access or alter object prototypes. Starting in version 2.2.1, the get, set and update functions throw a TypeError when a user attempts to access or alter inherited properties.
- Record
EUVD-2024-0244- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-4c2g-hx49-7h25
Prototype pollution not blocked by object-path related utilities in hoolock
Impact
Utility functions related to object paths (get, set and update) did not block attempts to access or alter object prototypes.
Patches
The get, set and update functions will throw a TypeError when a user attempts to access or alter inherited properties in versions >=2.2.1.
- Record
GHSA-4c2g-hx49-7h25- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - Weakness
- CWE-1321
- Updated
- 2026-11-02
NVD
hoolock is a suite of lightweight utilities designed to maintain a small footprint when bundled. Starting in version 2.0.0 and prior to version 2.2.1, utility functions related to object paths (get, set, and update) did not block attempts to access or alter object prototypes. Starting in version 2.2.1, the get, set and update functions throw a TypeError when a user attempts to access or alter inherited properties.
- Record
CVE-2024-23339- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - CVSS 3.1
- 6.5 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N - Weakness
- CWE-1321
- Updated
- 2026-11-02
OSVGHSA-4c2g-hx49-7h25
Prototype pollution not blocked by object-path related utilities in hoolock
Impact
Utility functions related to object paths (get, set and update) did not block attempts to access or alter object prototypes.
Patches
The get, set and update functions will throw a TypeError when a user attempts to access or alter inherited properties in versions >=2.2.1.
- Record
GHSA-4c2g-hx49-7h25- CVSS 3.1
- 6.3 Medium
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:L - Weakness
- CWE-1321
- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
hoolocknpm |
2.0.0 up to 2.2.1 | 2.2.1 |
Public exploits
Links only. Every CVE stores no exploit code.
| Source | Link | Date |
|---|---|---|
| PoC in GitHub | 200101WhoAmI/CVE-2024-23339 | 2024-08-21 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV, PoC in GitHub |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-23339 is a medium vulnerability (CVSS 6.3) in Elijahharry Hoolock, published January 22, 2024. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 1.01%, the 63rd percentile. Fixed in hoolock 2.2.1.