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CVE-2026-33007: Apache HTTP Server: mod_authn_socache crash

mediumCVSS 5.3CVE-2026-33007

CSIRTS triage

What
The mod_authn_socache module in Apache HTTP Server crashes due to improper cache handling.
Who is affected
Apache HTTP Server deployments with mod_authn_socache authentication module enabled.
Urgency
Medium priority; denial of service via crash with CVSS 5.3 affecting service availability.
Action
Upgrade Apache HTTP Server to a patched version or disable mod_authn_socache if not required.

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Details

Source
Microsoft Security Response Center (INTL · vendor-psirt · site)
Severity
medium — CVSS 5.3
Published
2026-08-06
Exploitation
Not in CISA KEV at last sync

Original advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-33007

Exploitation outlook

EPSS (FIRST.org) estimates each CVE’s probability of exploitation in the next 30 days — here is the CSIRTS.com read on those numbers.

Referenced CVEs

CVECSIRTS overviewExternal
CVE-2026-33007coverage & exploitation statusNVD · CVE.org

Same CVEs, other sources

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