---
id: "CVE-2026-68512"
page: "https://infrastack.ai/live/CVE-2026-68512"
kind: "vulnerability"
aliases: ["CVE-2026-68512"]
title: "Paaster pastebin: unlimited login guessing exposes accounts before version 3.3.0"
severity: "medium"
cvss: 6.3
epss: null
exploited: false
status: "open"
category: "other"
products: []
ecosystems: []
tags: ["other", "paaster", "self-hosted"]
not_affected_if: ["version-3.3.0-or-later"]
published_at: "2026-11-11T22:17:30+00:00"
first_seen_at: "2026-11-11T22:29:35+00:00"
updated_at: "2026-11-11T22:34:02+00:00"
sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-68512", "first_seen_at": "2026-11-11T22:29:35+00:00"}]
exploit_sources: []
---

# Paaster pastebin: unlimited login guessing exposes accounts before version 3.3.0

Link for people: https://infrastack.ai/live/CVE-2026-68512 (this .md is for agents)

Paaster is a pastebin application whose login has no rate limiting, lockout or CAPTCHA. A companion endpoint also reveals whether a username exists and that account's password-hashing salts, so an attacker can find real accounts and brute-force their passwords without throttling.

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

## How to check

- Check the installed Paaster version and compare it with `3.3.0`

## Fix

- Paaster: move to `3.3.0` or later

## Timeline

- 2026-11-11T22:29:35+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-68512

## Documents

- [advisory] Vendor advisory: github.com https://github.com/WardPearce/paaster/security/advisories/GHSA-9q9w-qhhm-2xwg
- [fix] Release notes: github.com https://github.com/WardPearce/paaster/releases/tag/v3.3.0

## From the sources

Paaster is a pastebin application. Prior to version 3.3.0, Paaster's account login has no rate limiting, lockout, or CAPTCHA of any kind, and a companion endpoint openly discloses whether a username exists along with that account's password-hashing salts. Together these let an attacker enumerate real accounts and then brute-force their passwords with unlimited, unthrottled attempts. This issue has been patched in version 3.3.0.

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_