Description

Alienbin is an anonymous code and text sharing web service. In 1.0.0 and earlier, the /save endpoint in server.js drops and recreates the MongoDB TTL index on the entire post collection for every new paste submission. When User B submits a paste with a short TTL (e.g., 30 seconds), the TTL index is recreated with expireAfterSeconds: 30 for all documents in the collection. This causes User A's paste (originally set to 7 days) to be deleted after 30 seconds. An attacker can intentionally delete all existing pastes by repeatedly submitting pastes with ttlOption=30s.

INFO

Published Date :

2026-03-10T21:39:58.148Z

Last Modified :

2026-03-11T15:59:20.745Z

Source :

GitHub_M
AFFECTED PRODUCTS

The following products are affected by CVE-2026-31827 vulnerability.

Vendors Products
Blue-b
  • Alienbin
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-31827.

CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Attack Requirements
Privileges Required
User Interaction
VS Confidentiality
VS Integrity
VS Availability
SS Confidentiality
SS Integrity
SS Availability