CVE-2026-41907
uuid: Missing buffer bounds check in `v3`/`v5`/`v6` when `buf` is provided
Description
uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs. Prior to 14.0.0, v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset). This allows silent partial writes into caller-provided buffers. This vulnerability is fixed in 14.0.0.
INFO
Published Date :
April 24, 2026, 7:17 p.m.
Last Modified :
May 11, 2026, 1:53 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] | ||||
| CVSS 4.0 | HIGH | [email protected] |
Solution
- Update uuid library to version 14.0.0 or later.
- Verify buffer write protections.
Public PoC/Exploit Available at Github
CVE-2026-41907 has a 2 public
PoC/Exploit available at Github.
Go to the Public Exploits tab to see the list.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-41907.
| URL | Resource |
|---|---|
| https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq | Exploit Vendor Advisory Mitigation |
| https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq | Exploit Vendor Advisory Mitigation |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-41907 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-41907
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
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Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-41907 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-41907 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
May. 11, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N Added CPE Configuration OR *cpe:2.3:a:uuidjs:uuid:*:*:*:*:*:node.js:*:* versions up to (excluding) 11.1.1 *cpe:2.3:a:uuidjs:uuid:12.0.0:*:*:*:*:node.js:*:* *cpe:2.3:a:uuidjs:uuid:13.0.0:*:*:*:*:node.js:*:* Added Reference Type CISA-ADP: https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq Types: Exploit, Mitigation, Vendor Advisory Added Reference Type GitHub, Inc.: https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq Types: Exploit, Mitigation, Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Apr. 27, 2026
Action Type Old Value New Value Added Reference https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq -
New CVE Received by [email protected]
Apr. 24, 2026
Action Type Old Value New Value Added Description uuid is for the creation of RFC9562 (formerly RFC4122) UUIDs. Prior to 14.0.0, v3, v5, and v6 accept external output buffers but do not reject out-of-range writes (small buf or large offset). This allows silent partial writes into caller-provided buffers. This vulnerability is fixed in 14.0.0. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-787 Added CWE CWE-823 Added Reference https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq