CVE-2021-23446

Regular Expression Denial of Service (ReDoS)

HIGH

7.5

CVSS Score

Published: September 29, 2021 at 04:45 PM UTC

Updated: June 17, 2026 at 03:38 AM UTC

1 product affected across 1 vendorHandsontable

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Severity

HIGH7.5

Exploit prediction

EPSS 3%

Description

The package handsontable before 10.0.0; the package handsontable from 0 and before 10.0.0 are vulnerable to Regular Expression Denial of Service (ReDoS) in Handsontable.helper.isNumeric function.

Affected

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

Handsontable · Handsontablenpm

95%

v < 10.0.0

Affected range stops below 10.0.0, 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

https://github.com/handsontable/handsontable/pull/8742

References (8)

x_refsource_MISCThird Party Advisory

Source: [email protected]

https://github.com/handsontable/handsontable/issues/8752

x_refsource_MISCPatchThird Party Advisory

Source: [email protected]

https://github.com/handsontable/handsontable/pull/8742