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VulnerabilityPublished

CVE-2026-41988: uuidjs uuid · Always-Incorrect Control Flow Implementation

Affects uuidjs uuidSource CVE Database V5

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Not known to be exploited · CVSS 3.2 Low : upgrade to 14.0.0 when convenient.

Data as of 30 Oct 2026, 11:52 UTC

CVSS 3.1 base score
3.2Low
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.1% chance of exploitation in 30 days – higher than 7% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 14.0.0
CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:C/C:N/I:L/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 23 Apr 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 30 Oct 2026.

What to do

Upgrade uuidjs uuid to 14.0.0.

Affected software

ProductAffectedFixed in
uuidjsuuidAffected
  • <14.0.0
Fixed in
  • 14.0.0
npmuuidpkg:npm/uuidOther threatsAffected
  • <14.0.0
Fixed in
  • 14.0.0

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

If you cannot patch yet, users should avoid using UUID versions 3, 5, or 6 with external output buffers in uuidjs versions prior to 14.0.0.

Description

The uuidjs library versions before 14.0.0 contain a vulnerability (CVE-2026-41988) where unexpected writes can occur when using external output buffers with UUID versions 3, 5, or 6. This issue does not affect the commonly used UUID version 4. The vulnerability is classified under CWE-670, indicating always-incorrect control flow implementation. The CVSS score is low (3.2), reflecting limited impact and complexity in exploitation.

References

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