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CVE-2026-57439

CyberChef: Prototype pollution in Series Chart operation PUBLISHED

Description (CNA)

CyberChef is a web app for encryption, encoding, compression, and data analysis. Prior to 11.2.0, the Series Chart operation accepts __proto__ as a key while parsing user-supplied CSV, allowing prototype pollution that can be chained with operations such as Parse UDP to inject malicious JavaScript into HTML output. This issue is fixed in version 11.2.0.

Affected (CNA)

Vendor / productVersions
gchq / CyberChefaffected < 11.2.0

CWE

CWE-79, CWE-1321

References

ADP enrichment

CISA-ADP

No English description supplied.