CVE-2026-67178 Open Redirect in MISP Installer-Generated Apache Configuration
An open redirect in MISP's Apache configuration allows attackers to redirect users to malicious sites, facilitating phishing and credential theft.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-67178?
CVE-2026-67178 is a high-severity vulnerability in misp, published on 28 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
MISP installation scripts generated an Apache HTTP virtual-host configuration containing an incorrectly formatted HTTP-to-HTTPS redirect:
Redirect permanent / https://misp.example
Apache’s Redirect directive appends any portion of the requested path that follows the matched prefix to the configured destination URL. Because the destination did not end with /, attacker-controlled path content was appended directly to the hostname rather than to its URL path.
For example, a request resembling:
http://misp.example/@attacker.example/
could result in a redirect resembling:
https://[email protected]/
Under standard URL parsing, misp.example is interpreted as user information and attacker.example as the destination host. An unauthenticated remote attacker could therefore construct a URL hosted under the legitimate MISP domain that redirects users to an attacker-controlled website.
The vulnerability could be used for phishing, credential collection, or potentially disclosing sensitive query-string information preserved during the redirect. Exploitation requires a user to follow the crafted HTTP URL.
The fix adds the missing trailing slash to the redirect destination, ensuring that appended request data remains part of the path on the configured MISP host.
Existing installationsExisting MISP installations should review their Apache HTTP virtual-host configuration and ensure that the HTTPS redirect destination ends with a trailing slash:
Redirect permanent / https://misp.example/
After updating the configuration, validate it with apachectl configtest and reload or restart Apache for the change to take effect
Weakness: CWE-601
Which versions are affected by CVE-2026-67178?
How do I fix CVE-2026-67178?
No fix has been published for CVE-2026-67178 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-67178 being exploited?
There is no known exploitation of CVE-2026-67178 in the wild and no public exploit code.
Sources
Also known as GHSA-frjf-677q-65jf.