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EUVD-2026-42313Published

Socket.IO enables bidirectional and low-latency communication for every platform. From 4.1.0 before 6.6.7, Engine.IO protocol v4 polling transport does not properly close the HTTP response for invalid binary POST requests with Content-Type:…

Exact source revision recorded 5 Nov 2026 12:42:15 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2026-42313

Published

Socket.IO enables bidirectional and low-latency communication for every platform. From 4.1.0 before 6.6.7, Engine.IO protocol v4 polling transport does not properly close the HTTP response for invalid binary POST requests with Content-Type: application/octet-stream, allowing an unauthenticated attacker to exhaust server-side connections and sockets. This issue is fixed in version 6.6.7.

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Jul 8, 2026, 3:37:52 PM

dateUpdated: Oct 14, 2026, 6:46:37 PM

2 related source bulletins · separate from aliases

RHSA-2026:37577: Red Hat Security Advisory: Red Hat Hardened Images RPMs Security Update

CVE-2026-39243 · CVE-2026-39245 · CVE-2026-59725 · CVE-2026-59869

RHSA-2026:42986: Red Hat Security Advisory: Red Hat Hardened Images RPMs bug fix and enhancement update

CVE-2026-59725

Source published
Jul 8, 2026, 3:37:52 PM (timezone not stated)
Source modified
Oct 14, 2026, 6:46:37 PM (timezone not stated)
Observed here
5 Nov 2026 12:42:15 UTC
Source terms
ENISA EUVD · source terms and attribution apply

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: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 3.1 · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

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Sources read 8 Nov 02:09 UTC · 275 of 275 readable · 273 fully read · documentation 469/469 current

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