---
id: "CVE-2026-116072"
kind: "vulnerability"
aliases: ["CVE-2026-116072"]
title: "Infinity for Reddit: hardcoded OAuth state lets attackers log victims into their account"
severity: "medium"
cvss: 5.4
epss: null
exploited: false
status: "open"
category: "package"
products: []
ecosystems: []
tags: ["android", "mobile", "package", "reddit-client"]
not_affected_if: ["newer-version"]
published_at: "2026-10-25T12:16:29+00:00"
first_seen_at: "2026-10-25T12:40:44+00:00"
updated_at: "2026-10-25T12:41:31+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-116072", "first_seen_at": "2026-10-25T12:40:44+00:00"}]
---

# Infinity for Reddit: hardcoded OAuth state lets attackers log victims into their account

Infinity for Reddit, an Android client, accepts a login redirect that checks a hardcoded OAuth state value, so an attacker can craft a link that logs the victim into the attacker's Reddit account. The victim's posts, messages and browsing then happen on the attacker's account.

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

## How to check

- Check the installed Infinity for Reddit version in the app's About screen or package settings; the flaw is described for versions through `8.3.4`.

## Fix

- Update Infinity for Reddit to a version later than `8.3.4`; the sources do not name the fixed version.
- Unknown whether a patched release exists; check the project's releases.

## Timeline

- 2026-10-25T12:40:44+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-116072

## From the sources

Infinity for Reddit through 8.3.4 contains a login cross-site request forgery vulnerability that allows attackers to log victims into an attacker-controlled account because the exported LoginChromeCustomTabActivity redirect handler checks a hardcoded OAuth state value. Attackers can authorize the app's client ID with their own Reddit account, then deliver an infinity://localhost redirect containing their code and the constant state, causing the victim's posts, messages, and browsing to occur on the attacker's account.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_