CVE-2026-81179 SysReptor: Host header injection might allow account takeover
An attacker can hijack password reset links via Host header injection to take over user accounts in SysReptor installations with wildcard ALLOWED_HOSTS.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-81179?
CVE-2026-81179 is a high-severity vulnerability in Syslifters sysreptor, published on 18 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
SysReptor is a fully customizable pentest reporting platform. Prior to 2026.58, installations that enable password reset by email while configuring ALLOWED_HOSTS with a wildcard accept an attacker-controlled Host header when generating a password reset link. An unauthenticated attacker can request a reset email whose link points to an attacker-controlled system, and a victim who follows that link can disclose the reset token, allowing the attacker to reset the victim's password and take over the account. Exploitation also requires a configured email gateway and an email address for the victim, while some reverse proxy configurations may reject the hostile Host header. This issue is fixed in version 2026.58.
Weakness: CWE-807
Which versions are affected by CVE-2026-81179?
How do I fix CVE-2026-81179?
No fix has been published for CVE-2026-81179 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-81179 being exploited?
There is no known exploitation of CVE-2026-81179 in the wild and no public exploit code.
Sources
Also known as GHSA-9x2r-5pff-8w6c.