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CVE-2026-79768

Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir…

Risk score
51/100
CVSS
5.3 v3.1
Exploit chance (30 days)
0.6%
Published
1 Oct 2026

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What to know

What it is
Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir module when configured with absolute non-wildcard UserDir directive (the 2nd form in https://httpd.apache.org/docs/2.4/mod/mod_userdir.html#userdir) This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.
Affected
Apache Http Server
Fix
Apply the vendor's security update; see the linked advisory.
Exploitation
No known exploitation

Story map

Story map: Apache Http ServerTHE FLAWSTHE FIXCVE-2026-79768Path equivalence: '/./' (singledot directory) vulnerability inApache HTTP Server's…CVSS 5.3 · EPSS 1%CVE-2026-57941Use-after-freeCVSS 9.8 · EPSS 1%CVE-2026-56154Use-after-freeCVSS 9.8 · EPSS 1%CVE-2026-59797Privilege escalationCVSS 9.8 · EPSS 1%FixApply the vendor's securityupdate; see the linked advisory.Who is exposedApache Http ServerRED · ACT TODAYApache HttpServerUse After Free vulnerability inApache HTTP Server'smod_http2 via sharedsession->bbtmp re-entrancyThis issue affects Apache HTTPServer: from 2.4.0 through2.4.68.Where it standsNo known exploitationCONNECTS TOSame productEarlier Apache Http Server warnings16 in the last 90 days →
Story map: the flaws, the fix, how it unfolded and what it connects to. Boxes link to the record or article.

At a glance

Apache Http Server: Red, act today. Use After Free vulnerability in Apache HTTP Server's mod_http2 via shared session->bbtmp re-entrancy This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

The flaws

  • CVE-2026-79768: Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir… (CVSS 5.3 · EPSS 1%)
  • CVE-2026-57941: Use-after-free (CVSS 9.8 · EPSS 1%)
  • CVE-2026-56154: Use-after-free (CVSS 9.8 · EPSS 1%)
  • CVE-2026-59797: Privilege escalation (CVSS 9.8 · EPSS 1%)

The fix

Fix: Apply the vendor's security update; see the linked advisory.

Who is exposed: Apache Http Server

Where it stands

  • No known exploitation

Connects to

Why it is Yellow

  • CVSS 5.3 medium
  • On your watchlist: apache http server

References

Original description

Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir module when configured with absolute non-wildcard UserDir directive (the 2nd form in https://httpd.apache.org/docs/2.4/mod/mod_userdir.html#userdir) This issue affects Apache HTTP Server: from 2.4.0 through 2.4.68.

Last activity 1 Oct 2026. Patch Forecast updates every hour.