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EUVD-2026-83253Published

http-cache-semantics through 4.2.0 fails to properly validate security-zeroed cache entries when processing client max-stale directives, allowing unauthenticated attackers to retrieve cached responses belonging to other users. Attackers can…

Exact source revision recorded 3 Nov 2026 14:05:30 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

euvd · EUVD-2026-83253

Published

http-cache-semantics through 4.2.0 fails to properly validate security-zeroed cache entries when processing client max-stale directives, allowing unauthenticated attackers to retrieve cached responses belonging to other users. Attackers can request the same URL with a large max-stale value to obtain another user's Set-Cookie session credentials from shared-cache entries that were deliberately zeroed for security reasons.

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: Sep 18, 2026, 5:51:34 PM

dateUpdated: Oct 14, 2026, 10:56:47 PM

4 related source bulletins · separate from aliases

RHSA-2026:92307: Red Hat Security Advisory: Red Hat Advanced Cluster Management for Kubernetes v2.13.14 security update

CVE-2026-14199 · CVE-2026-15815 · CVE-2026-33818 · CVE-2026-37236 · CVE-2026-39834 · CVE-2026-56853 · CVE-2026-56854 · CVE-2026-56858 · CVE-2026-56859 · CVE-2026-56860 · CVE-2026-56862 · CVE-2026-63209 · CVE-2026-77354 · CVE-2026-77405 · CVE-2026-77411 · CVE-2026-84304 · CVE-2026-84375 · CVE-2026-84445 · CVE-2026-88031 · CVE-2026-93748 · CVE-2026-106445 · CVE-2026-106446

RHSA-2026:88198: Red Hat Security Advisory: Red Hat Developer Hub 1.10.6 release.

CVE-2026-84782 · CVE-2026-90711 · CVE-2026-93748 · CVE-2026-93749 · CVE-2026-101916

RHSA-2026:92303: Red Hat Security Advisory: multicluster engine for Kubernetes v2.8.12 security update

CVE-2026-33818 · CVE-2026-39822 · CVE-2026-39834 · CVE-2026-56853 · CVE-2026-56858 · CVE-2026-56859 · CVE-2026-56860 · CVE-2026-56862 · CVE-2026-63209 · CVE-2026-84304 · CVE-2026-93748 · CVE-2026-106445 · CVE-2026-106446

msrc_CVE-2026-93748: http-cache-semantics through 4.2.0 Cross-User Cache Disclosure via max-stale

CVE-2026-93748

Source published
Sep 18, 2026, 5:51:34 PM (timezone not stated)
Source modified
Oct 14, 2026, 10:56:47 PM (timezone not stated)
Observed here
3 Nov 2026 14:05:30 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 4.0 · 8.7 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

ChangeIntel

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Sources read 7 Nov 08:57 UTC · 274 of 275 readable · 272 fully read · documentation 469/469 current

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