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CVE-2026-41907

uuid: Missing buffer bounds check in `v3`/`v5`/`v6` when `buf` is provided

HIGH
7.5
CVSS Score
Published: April 24, 2026 at 06:09 PM UTC
Updated: October 26, 2026 at 09:10 PM UTC
1 product affected across 1 vendorUuid

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Severity
HIGH7.5
Exploit prediction
EPSS 0.4%
SSVC
PoC

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Uuid· Uuidjsnpm
95%
v < 11.1.112.0.013.0.0
Affected range stops below 14.0.0, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (1)

x_refsource_CONFIRMExploitMitigationVendor Advisory
Source: cverecord
https://github.com/uuidjs/uuid/security/advisories/GHSA-w5hq-g745-h8pq

SSVC — Action Prioritization

SSVCPoCAutomatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGH[email protected]
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-823CWE-787

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