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CVE-2021-42694
HIGH · CVSS 8.3
EPSS exploitation probability: 0%
Published 2021-11-01T04:15:08.043 · Last modified 2026-06-17T04:09:58.010

Summary

An issue was discovered in the character definitions of the Unicode Specification through 14.0. The specification allows an adversary to produce source code identifiers such as function names using homoglyphs that render visually identical to a target identifier. Adversaries can leverage this to inject code via adversarial identifier definitions in upstream software dependencies invoked deceptively in downstream software. NOTE: the Unicode Consortium offers the following alternative approach to presenting this concern. An issue is noted in the nature of international text that can affect applications that implement support for The Unicode Standard (all versions). Unless mitigated, an adversary could produce source code identifiers using homoglyph characters that render visually identical t

Affected products

unicode — unicode

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.