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CVE-2019-10098VulnerabilityPublished Updated

Apache HTTP server · Apache2:

Affects apache2Source GCVE Database

0

Not known to be exploited · public exploit available (Exploit-DB) · 73% EPSS · CVSS 6.1 Medium : upgrade to 2.4.18-2ubuntu3.12 as a priority.

Data as of 26 Oct 2026, 06:26 UTC

CVSS 3.1 base score
6.1Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
73.9% chance of exploitation in 30 days – higher than 99% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 2.4.18-2ubuntu3.12, 2.4.29-1ubuntu4.10, 2.4.41-1ubuntu1
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N

Exploitation evidence

t = 0 is the CVE’s publication on cve.org

  1. Disclosed: evidence found.

    CVE published 14 Aug 2019

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

    Not in CISA KEV and no source reports exploitation

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

    No attack traffic recorded by OffSeq Mirage sensors

Timeline

  1. CVE published

    on cve.org

    , t = 0

  2. First Exploit-DB entry (opens in a new tab)

    Apache Httpd mod_rewrite - Open Redirects

    , 61 days after disclosure

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 2026-10-26.

What to do

Upgrade apache2 to 2.4.18-2ubuntu3.12; apache2 to 2.4.29-1ubuntu4.10; apache2 to 2.4.41-1ubuntu1.

Affected software

ProductAffectedFixed in
Ubuntu:Pro:14.04:LTSapache2pkg:deb/ubuntu/apache2@2.4.7-1ubuntu4.22+esm15?arch=source&distro=esm-infra-legacy/trustyOther threatsAffected
  • =2.4.6-2ubuntu2
  • =2.4.6-2ubuntu3
  • =2.4.6-2ubuntu4
  • =2.4.7-1ubuntu1
  • =2.4.7-1ubuntu2
  • =2.4.7-1ubuntu3
  • =2.4.7-1ubuntu4
  • =2.4.7-1ubuntu4.1
  • =2.4.7-1ubuntu4.4
  • =2.4.7-1ubuntu4.5
  • =2.4.7-1ubuntu4.6
  • =2.4.7-1ubuntu4.7
  • =2.4.7-1ubuntu4.8
  • =2.4.7-1ubuntu4.9
  • =2.4.7-1ubuntu4.10
  • =2.4.7-1ubuntu4.11
  • =2.4.7-1ubuntu4.13
  • =2.4.7-1ubuntu4.15
  • =2.4.7-1ubuntu4.16
  • =2.4.7-1ubuntu4.17
  • =2.4.7-1ubuntu4.18
  • =2.4.7-1ubuntu4.19
  • =2.4.7-1ubuntu4.20
  • =2.4.7-1ubuntu4.21
  • =2.4.7-1ubuntu4.22
  • =2.4.7-1ubuntu4.22+esm1
  • =2.4.7-1ubuntu4.22+esm2
  • =2.4.7-1ubuntu4.22+esm3
  • =2.4.7-1ubuntu4.22+esm4
  • =2.4.7-1ubuntu4.22+esm5
  • =2.4.7-1ubuntu4.22+esm6
  • =2.4.7-1ubuntu4.22+esm8
  • =2.4.7-1ubuntu4.22+esm9
  • =2.4.7-1ubuntu4.22+esm10
  • =2.4.7-1ubuntu4.22+esm12
  • =2.4.7-1ubuntu4.22+esm13
  • =2.4.7-1ubuntu4.22+esm14
  • =2.4.7-1ubuntu4.22+esm15
Fixed in–
Ubuntu:16.04:LTSapache2pkg:deb/ubuntu/apache2@2.4.18-2ubuntu3.12?arch=source&distro=xenialOther threatsAffected
  • <2.4.18-2ubuntu3.12
  • =2.4.12-2ubuntu2
  • =2.4.17-1ubuntu1
  • =2.4.17-2ubuntu1
  • =2.4.17-3ubuntu1
  • =2.4.18-1ubuntu1
  • =2.4.18-2ubuntu1
  • =2.4.18-2ubuntu2
  • =2.4.18-2ubuntu3
  • =2.4.18-2ubuntu3.1
  • =2.4.18-2ubuntu3.2
  • =2.4.18-2ubuntu3.3
  • =2.4.18-2ubuntu3.4
  • =2.4.18-2ubuntu3.5
  • =2.4.18-2ubuntu3.7
  • =2.4.18-2ubuntu3.8
  • =2.4.18-2ubuntu3.9
  • =2.4.18-2ubuntu3.10
Fixed in
  • 2.4.18-2ubuntu3.12
Ubuntu:18.04:LTSapache2pkg:deb/ubuntu/apache2@2.4.29-1ubuntu4.10?arch=source&distro=bionicOther threatsAffected
  • <2.4.29-1ubuntu4.10
  • =2.4.27-2ubuntu3
  • =2.4.29-1ubuntu1
  • =2.4.29-1ubuntu2
  • =2.4.29-1ubuntu3
  • =2.4.29-1ubuntu4
  • =2.4.29-1ubuntu4.1
  • =2.4.29-1ubuntu4.2
  • =2.4.29-1ubuntu4.3
  • =2.4.29-1ubuntu4.4
  • =2.4.29-1ubuntu4.5
  • =2.4.29-1ubuntu4.6
  • =2.4.29-1ubuntu4.7
  • =2.4.29-1ubuntu4.8
Fixed in
  • 2.4.29-1ubuntu4.10
Ubuntu:20.04:LTSapache2pkg:deb/ubuntu/apache2@2.4.41-1ubuntu1?arch=source&distro=focalOther threatsAffected
  • <2.4.41-1ubuntu1
Fixed in
  • 2.4.41-1ubuntu1

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

AI-suggested

Users should verify with their operating system or Apache HTTP Server vendor for available updates or patches addressing this issue. Until patched, administrators should review mod_rewrite redirect rules for potential misuse of encoded newline characters and consider implementing additional validation or filtering of URLs.

Description

Apache HTTP Server versions 2.4.0 through 2.4.39 contain a vulnerability in mod_rewrite redirects. Redirects intended to be self-referential can be manipulated using encoded newline characters, causing the server to redirect to an unexpected URL within the request. This behavior may lead to unintended information disclosure or redirect-based attacks. The vulnerability affects multiple Ubuntu-specific Apache 2.4.x package versions. No known exploits are reported in the wild.

References

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