synced 14 MIN AGO
01 Record

CVE-2021-22918

Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether

UnratedPUBLISHEDCNA: hackerone
CNA base scoreUnratedNo CNA CVSS vector
View raw JSON

02 Description

Node.js before 16.4.1, 14.17.2, 12.22.2 is vulnerable to an out-of-bounds read when uv__idna_toascii() is used to convert strings to ASCII. The pointer p is read and increased without checking whether

03 Exploitation and scoring

Exploitation
Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
SSVC decision
Not assessed by CISA
EPSS probability
23.13% probability of exploitation activity in the next 30 days.
EPSS percentile
Equal to or higher than the score of 97.5% of scored records. A rank, not a probability.
NVD base score
5.3 (CVSS v3.x), scored by the NVD independently of the CNA.
NVD CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N
NVD analysis status
Modified. NVD last modified this record on 2026-06-17.
Red Hat severity
Low. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published
2021-07-12 00:00Z5 YR AGO
Last updated
2025-04-30 22:24Z1 YR AGO
Reserved
2021-01-06
Assigning CNA
hackerone
Record state
PUBLISHED
Severity
Not rated by the issuing CNA
CNA CVSS vector
Not published by the issuing CNA
Weaknesses
Data version
5.1
Document digest
0e200d6f4f262ea9f15b7386ab241f64f8d7c914cee51028cc8f62218d397f62

05 Affected products

VendorProductVersionsPlatforms
NodeJSNode4.0 to < 4.*, 5.0 to < 5.*, 6.0 to < 6.*, 7.0 to < 7.*, 8.0 to < 8.*, 9.0 to < 9.*, 10.0 to < 10.*, 11.0 to < 11.*, 12.0 to < 12.22.2, 13.0 to < 13.*, 14.0 to < 14.17.2, 15.0 to < 15.*, 16.0 to < 16.4.1—

06 References

07 Fixed in

AlmaLinux 8

  • libuv
    Fixed in 1:1.41.1-1.el8_4
  • libuv-devel
    Fixed in 1:1.41.1-1.el8_4
  • nodejs-nodemon
    Fixed in 2.0.3-1.module_el8.4.0+2521+c668cc9f
  • nodejs-packaging
    Fixed

    A version is affected if any line below covers it.

    • Affected before 17-3.module_el8.3.0+2023+d2377ea3
    • Affected before 17-3.module_el8.4.0+2224+b07ac28e
    • Affected before 17-3.module_el8.4.0+2521+c668cc9f
    • Affected before 23-3.module_el8.4.0+2522+3bd42762
    • Affected before 23-3.module_el8.5.0+254+b4526b16

Source: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Arch Linux

  • libuv
    Fixed in 1.41.1-1
  • nodejs
    Fixed in 16.4.1-1

Source: Arch Linux Security Tracker, the Arch Linux security team. Reformatted by exploit.cc.

CloudLinux 8

  • libuv
    Fixed in 1:1.41.1-1.el8_4
  • libuv-devel
    Fixed in 1:1.41.1-1.el8_4
  • nodejs-nodemon
    Fixed in 2.0.3-1.module_el8.4.0+2521+c668cc9f
  • nodejs-packaging
    Fixed

    A version is affected if any line below covers it.

    • Affected before 17-3.module_el8.3.0+2023+d2377ea3
    • Affected before 17-3.module_el8.4.0+2224+b07ac28e
    • Affected before 17-3.module_el8.4.0+2521+c668cc9f
    • Affected before 23-3.module_el8.4.0+2522+3bd42762
    • Affected before 23-3.module_el8.5.0+254+b4526b16

Derived from AlmaLinux 8. Partial coverage: only packages taken from AlmaLinux 8 are listed.

Source: CloudLinux errata, CloudLinux Inc. Derived from: AlmaLinux, AlmaLinux OS. Copyright (c) 2023 AlmaLinux OS. Licensed under MIT License. Received through OSV.dev. Reformatted by exploit.cc.

Debian 12

  • libuv1
    Fixed in 1.40.0-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 13

  • libuv1
    Fixed in 1.40.0-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Debian 14

  • libuv1
    Fixed in 1.40.0-2

Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.

Ubuntu 20.04 LTS

  • libuv1
    Fixed in 1.34.2-1ubuntu1.3

Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.

A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.