Apache2:
Affects apache2Source GCVE Database
Public exploit available (Exploit-DB) · 73% EPSS · CVSS 6.1 Medium · fixed in 2.4.18-2ubuntu3.12 : patch apache2 as a priority.
Data as of 26 Oct 2026, 17:16 UTC
- 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:NExploitation evidence
t = 0 is the CVE’s publication on cve.org
Disclosed: evidence found.
CVE published 14 Aug 2019
Detectable: evidence found.
nuclei template: Apache HTTP server v2.4.0 to v2.4.39 - Open Redirect
Weaponised: evidence found.
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
Timeline
CVE published
on cve.org
, t = 0
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 26 Oct 2026.
What to do
Upgrade the Ubuntu apache2 to 2.4.18-2ubuntu3.12 (package) or 2.4.29-1ubuntu4.10 (package) or 2.4.41-1ubuntu1 (package).
Affected software
| Product | Affected | Fixed in |
|---|---|---|
Ubuntu 20.04 LTSapache2pkg:deb/ubuntu/apache2@2.4.41-1ubuntu1?arch=source&distro=focalOther threats | Affected
| Fixed in
|
Ubuntu 18.04 LTSapache2pkg:deb/ubuntu/apache2@2.4.29-1ubuntu4.10?arch=source&distro=bionicOther threats | Affected
| Fixed in
|
Ubuntu 16.04 LTSapache2pkg:deb/ubuntu/apache2@2.4.18-2ubuntu3.12?arch=source&distro=xenialOther threats | Affected
| Fixed in
|
Ubuntu Pro 14.04 LTSapache2pkg:deb/ubuntu/apache2@2.4.7-1ubuntu4.22+esm15?arch=source&distro=esm-infra-legacy/trustyOther threats | Affected
| Fixed in– |
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.