CVE-2024-38372
Undici vulnerable to data leak when using response.arrayBuffer()
Undici is an HTTP/1.1 client, written from scratch for Node.js. Depending on network and process conditions of a fetch() request, response.arrayBuffer() might include portion of memory from the Node.js process. This has been patched in v6.19.2.
Attack profile
How easy it is to exploit
- Attack vector
- Network
- Complexity
- High
- Privileges needed
- High
- User interaction
- Required
What an attacker can affect
- Confidentiality
- Low
- Integrity
- None
- Availability
- None
Exploit likelihood
What each source reports
CVE List Score used
Undici vulnerable to data leak when using response.arrayBuffer()
Undici is an HTTP/1.1 client, written from scratch for Node.js. Depending on network and process conditions of a fetch() request, response.arrayBuffer() might include portion of memory from the Node.js process. This has been patched in v6.19.2.
- Record
CVE-2024-38372- CVSS 3.1
- 2.0 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-201
- Updated
- 2026-11-02
EUVDEUVD-2024-2235
Undici is an HTTP/1.1 client, written from scratch for Node.js. Depending on network and process conditions of a fetch() request, response.arrayBuffer() might include portion of memory from the Node.js process. This has been patched in v6.19.2.
- Record
EUVD-2024-2235- CVSS 3.1
- 2.0 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N - Updated
- 2026-11-03
GitHub AdvisoriesGHSA-3g92-w8c5-73pq
Undici vulnerable to data leak when using response.arrayBuffer()
Impact
Depending on network and process conditions of a fetch() request, response.arrayBuffer() might include portion of memory from the Node.js process.
Patches
This has been patched in v6.19.2.
Workarounds
There are no known workaround.
References
https://github.com/nodejs/undici/issues/3337 https://github.com/nodejs/undici/issues/3328 https://github.com/nodejs/undici/pull/3338 https://github.com/nodejs/undici/commit/f979ec3204ca489abf30e7d20e9fee9ea7711d36
- Record
GHSA-3g92-w8c5-73pq- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 2.0 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-201
- Updated
- 2026-11-02
NVD
Undici is an HTTP/1.1 client, written from scratch for Node.js. Depending on network and process conditions of a fetch() request, response.arrayBuffer() might include portion of memory from the Node.js process. This has been patched in v6.19.2.
- Record
CVE-2024-38372- CVSS 3.1
- 2.0 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-201
- Updated
- 2026-11-02
OSV
Undici vulnerable to data leak when using response.arrayBuffer()
Undici is an HTTP/1.1 client, written from scratch for Node.js. Depending on network and process conditions of a fetch() request, response.arrayBuffer() might include portion of memory from the Node.js process. This has been patched in v6.19.2.
- Record
CVE-2024-38372- CVSS 3.1
- 2.0 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-201
- Updated
- 2026-11-02
OSVGHSA-3g92-w8c5-73pq
Undici vulnerable to data leak when using response.arrayBuffer()
Impact
Depending on network and process conditions of a fetch() request, response.arrayBuffer() might include portion of memory from the Node.js process.
Patches
This has been patched in v6.19.2.
Workarounds
There are no known workaround.
References
https://github.com/nodejs/undici/issues/3337 https://github.com/nodejs/undici/issues/3328 https://github.com/nodejs/undici/pull/3338 https://github.com/nodejs/undici/commit/f979ec3204ca489abf30e7d20e9fee9ea7711d36
- Record
GHSA-3g92-w8c5-73pq- CVSS 4.0
- 2.0 Low
CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N - CVSS 3.1
- 2.0 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N - Weakness
- CWE-201
- Updated
- 2026-11-02
OSVUBUNTU-CVE-2024-38372
Undici is an HTTP/1.1 client, written from scratch for Node.js. Depending on network and process conditions of a fetch() request, response.arrayBuffer() might include portion of memory from the Node.js process. This has been patched in v6.19.2.
- Record
UBUNTU-CVE-2024-38372- CVSS 3.1
- 2.0 Low
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:L/I:N/A:N - Updated
- 2026-11-02
OSVROOT-APP-NPM-CVE-2024-38372 No score
CVE-2024-38372 in undici - Patched by Root
Root has patched CVE-2024-38372 in the undici package for Root:npm. Multiple fixed versions available.
- Record
ROOT-APP-NPM-CVE-2024-38372- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
undicinpm |
6.14.0 up to 6.19.2 | 6.19.2 |
undiciRoot:npm |
before 6.19.2-aikido.7 | 6.19.2-aikido.76.19.2-aikido.86.19.2-aikido.96.19.2-aikido.10 |
@rootio/undiciRoot:npm |
before 6.19.2-root.io.1 | 6.19.2-root.io.16.19.2-root.io.26.19.2-root.io.36.19.2-root.io.46.19.2-root.io.56.19.2-root.io.66.19.2-root.io.76.19.2-root.io.86.19.2-root.io.96.19.2-root.io.10 |
node-undiciUbuntu:24.04:LTS |
All versions, plus listed versions 5.22.1+dfsg1+~cs20.10.10.2-1ubuntu15.26.3+dfsg1+~cs23.10.12-2 |
None known |
node-undiciUbuntu:25.10 |
All versions, plus listed versions 7.3.0+dfsg1+~cs24.12.11-17.3.0+dfsg1+~cs24.12.11-2 |
None known |
node-undiciUbuntu:26.10 |
All versions, plus listed versions 7.18.2+dfsg+~cs3.2.0-1build17.24.6+dfsg+~cs3.2.0-38.5.0+dfsg+~cs3.2.0-28.5.0+dfsg+~cs3.2.0-38.9.0+dfsg+~cs3.2.0-1 |
None known |
node-undiciUbuntu:26.04:LTS |
All versions, plus listed versions 7.3.0+dfsg1+~cs24.12.11-27.16.0+dfsg+~cs3.2.0-27.18.2+dfsg+~cs3.2.0-17.18.2+dfsg+~cs3.2.0-1build1 |
None known |
History
| Recorded | Changed | Sources |
|---|---|---|
| aliases, products, published | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2024-38372 is a low vulnerability (CVSS 2.0) in Nodejs Undici, published July 8, 2024. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.47%, the 40th percentile. Fixed in undici 6.19.2.