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CVE-2026-79768VulnerabilityPublished Updated

apache2 · Path equivalence: '/./' (single dot directory) vulnerability in Apache HTTP Server's mod_userdir module when

Affects apache2Source GCVE Database

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Authoritative record:CVE-2026-79768· Medium 5.3

Not known to be exploited · CVSS 5.3 Medium · fixed in 2.4.7-1ubuntu4.22+esm17 : update apache2 when convenient.

Data as of 10 Nov 2026, 06:39 UTC

CVSS 3.1 base score
5.3Medium
How severe the flaw is on the 0–10 CVSS scale.
Patch
Available – fixed in 2.4.7-1ubuntu4.22+esm17, 2.4.18-2ubuntu3.17+esm22, 2.4.29-1ubuntu4.27+esm13 +4
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 1 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 9 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
Ubuntu 26.10apache2pkg:deb/ubuntu/apache2?arch=source&distro=stonkingOther threatsAffected
  • =2.4.66-2ubuntu2
  • =2.4.68-1ubuntu4
  • =2.4.68-1ubuntu6.1
Fixed in–
Ubuntu 26.04 LTSapache2pkg:deb/ubuntu/apache2?arch=source&distro=resoluteOther threatsAffected
  • <2.4.66-2ubuntu2.6
Fixed in
  • 2.4.66-2ubuntu2.6
Ubuntu 24.04 LTSapache2pkg:deb/ubuntu/apache2?arch=source&distro=nobleOther threatsAffected
  • <2.4.58-1ubuntu8.17
Fixed in
  • 2.4.58-1ubuntu8.17
Ubuntu 22.04 LTSapache2pkg:deb/ubuntu/apache2?arch=source&distro=jammyOther threatsAffected
  • <2.4.52-1ubuntu4.25
Fixed in
  • 2.4.52-1ubuntu4.25
Ubuntu Pro 20.04 LTSapache2pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra/focalOther threatsAffected
  • <2.4.41-4ubuntu3.23+esm9
Fixed in
  • 2.4.41-4ubuntu3.23+esm9
Ubuntu Pro 18.04 LTSapache2pkg:deb/ubuntu/apache2?arch=source&distro=esm-infra/bionicOther threatsAffected
  • <2.4.29-1ubuntu4.27+esm13
Fixed in
  • 2.4.29-1ubuntu4.27+esm13

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

A patch is available and should be applied promptly. Ubuntu has released fixed package versions for all supported LTS releases and Ubuntu Pro users. Updating to the fixed versions listed in the vendor advisory (e.g., 2.4.7-1ubuntu4.22+esm17 and later) will remediate the vulnerability. Standard system updates will apply the necessary fixes.

Description

A path equivalence vulnerability involving the '/./' (single dot directory) sequence exists in the Apache HTTP Server's mod_userdir module when configured with an absolute non-wildcard UserDir directive. This affects Apache HTTP Server versions from 2.4.0 through 2.4.68. The vulnerability could allow a remote attacker to obtain sensitive information due to improper handling of user directory access paths. The issue has a medium severity with a CVSS score of 5.3. Fixes are available in multiple updated package versions across supported Ubuntu releases.

References

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