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CVE-2026-42504

Quadratic complexity in WordDecoder.DecodeHeader in mime PUBLISHED

Description (CNA)

Decoding a maliciously-crafted MIME header containing many invalid encoded-words can consume excessive CPU.

Affected (CNA)

Vendor / productVersions
Go standard library / mimeaffected 0 before 1.25.11; affected 1.26.0-0 before 1.26.4

CWE

No CWE identifiers supplied.

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.