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Apache HTTP Server vulnerability

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache HTTP Server's mod_session_cookie module.   When SessionCookieRemove changes across internal redirects, the session cookie may still be passed to a backend server. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Published 1 Oct 2026Updated 2 Oct 20262 sources
CVSS 7.5
Overview Sources History

What happened

Exposure of Sensitive Information to an Unauthorized Actor vulnerability in Apache HTTP Server's mod_session_cookie module.   When SessionCookieRemove changes across internal redirects, the session cookie may still be passed to a backend server. This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Affected versions

Apache HTTP Server: 2.4.0 through 2.4.68 (semver) Fixed: See vendor advisory.

Why it matters

Review the vendor advisory and exposure of the affected product to determine operational impact.

Detection & mitigation

  • Apply vendor-provided updates or mitigations.
  • Review affected product exposure and access logs.

Public PoC references

No public PoC reference has passed the current publication threshold.

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