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Advisory catalogCVE-2026-42504
CVE-2026-42504Published

Quadratic complexity in WordDecoder.DecodeHeader in mime

Exact source revision recorded 23 Oct 2026 23:48:20 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2026-42504

Published

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

Source published
02 Jun 2026 22:01:37 UTC
Source modified
23 Oct 2026 22:21:24 UTC
Observed here
23 Oct 2026 23:48:20 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

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An IT change radar: releases, security, known issues, retirements, documentation changes, and service status from public sources. Every item links to supporting evidence; dates and statuses can change after they are read.

Sources read 24 Oct 14:20 UTC · 271 of 271 readable · 269 fully read · documentation 464/464 current

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