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CVE-2021-44532

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to…

Medium5.3EPSS 10.4%
Published
Updated
Reserved
Assigned by
hackerone

Description

Node.js < 12.22.9, < 14.18.3, < 16.13.2, and < 17.3.1 converts SANs (Subject Alternative Names) to a string format. It uses this string to check peer certificates against hostnames when validating connections. The string format was subject to an injection vulnerability when name constraints were used within a certificate chain, allowing the bypass of these name constraints.Versions of Node.js with the fix for this escape SANs containing the problematic characters in order to prevent the injection. This behavior can be reverted through the --security-revert command-line option.

Scores

CVSS scores of CVE-2021-44532, by who scored it
Scored byCVSSScoreVector
NVDNVD · Modified3.1Medium5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
EPSS (exploitation in 30 days)
10.4% · top 4.3% of all CVEs (6 Nov 2026)
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The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.3.

Weakness

Affected products

  • NodeJS · Node

    • affected 4.0 – < 4.*
    • affected 5.0 – < 5.*
    • affected 6.0 – < 6.*
    • affected 7.0 – < 7.*
    • affected 8.0 – < 8.*
    • affected 9.0 – < 9.*
    • affected 10.0 – < 10.*
    • affected 11.0 – < 11.*
    • affected 12.0 – < 12.22.9
    • affected 13.0 – < 13.*
    • affected 14.0 – < 14.18.3
    • affected 15.0 – < 15.*
    • affected 16.0 – < 16.13.2
    • affected 17.0 – < 17.3.1

References (6)

Sources

The same CVE in the primary databases and aggregators, to check against.

Badge for a README or a ticket

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Record last updated .