---
id: "CVE-2026-126400"
page: "https://infrastack.ai/live/CVE-2026-126400"
kind: "vulnerability"
aliases: ["CVE-2026-126400"]
title: "Password Pusher: forged client IP lets attackers falsify audit logs and rate limits"
severity: "medium"
cvss: 6.3
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["package", "password-pusher", "ruby", "self-hosted"]
not_affected_if: ["version-2.17.0-or-later"]
published_at: "2026-11-13T10:17:44+00:00"
first_seen_at: "2026-11-13T10:47:19+00:00"
updated_at: "2026-11-13T10:55:19+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-126400", "first_seen_at": "2026-11-13T10:47:19+00:00"}]
exploit_sources: []
---

# Password Pusher: forged client IP lets attackers falsify audit logs and rate limits

Link for people: https://infrastack.ai/live/CVE-2026-126400 (this .md is for agents)

Password Pusher versions from 1.49.0 before 2.17.0 trust X-Forwarded-For headers through an unanchored regular expression, so remote clients can set the recorded request IP. An attacker can falsify audit log entries and shift password generator rate limits.

_Summary, check and fix written by a model from the sources; labelled as such._

## How to check

- Check the installed Password Pusher version; affected if it is from `1.49.0` up to but not including `2.17.0`.
- Look at the trusted proxy configuration for a regular expression matching proxy addresses; an unanchored pattern is the flawed setting.

## Fix

- Upgrade Password Pusher to `2.17.0` or later.

## Timeline

- 2026-11-13T10:47:19+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-126400

## Documents

- [advisory] Vendor advisory: github.com https://github.com/pglombardo/PasswordPusher/security/advisories/GHSA-p2xh-x263-68qc
- [advisory] Third-party advisory: www.vulncheck.com https://www.vulncheck.com/advisories/password-pusher-1.49.0-before-2.17.0-ip-spoofing-via-unanchored-trusted-proxy-regex

## From the sources

Password Pusher from 1.49.0 before 2.17.0 contains an IP spoofing vulnerability that allows remote clients to forge the recorded request IP via unanchored trusted-proxy regular expressions. Clients in 110.0.0.0/8 or 210.0.0.0/8, or connecting directly, can supply X-Forwarded-For values to falsify audit log entries and shift password generator rate limits.

---

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