Discourse AI summary cache leak pre-2026.1.4/3.1/4.1/5.0-latest.1
CVE-2026-32244 Published on May 19, 2026
Discourse: Cached outdated summaries can leak removed content
Discourse is an open-source discussion platform. In versions prior to 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1, outdated cached AI summaries can leak removed content to anonymous and unprivileged users who cannot regenerate summaries. This issue has been fixed in versions 2026.1.4, 2026.3.1, 2026.4.1 and 2026.5.0-latest.1. To work around this issue, restrict summary generation by tightening the allowed groups on the summarization Personas.
Vulnerability Analysis
CVE-2026-32244 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Types
Use of Cache Containing Sensitive Information
The code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere. Applications may use caches to improve efficiency when communicating with remote entities or performing intensive calculations. A cache maintains a pool of objects, threads, connections, pages, financial data, passwords, or other resources to minimize the time it takes to initialize and access these resources. If the cache is accessible to unauthorized actors, attackers can read the cache and obtain this sensitive information.
What is an Information Disclosure Vulnerability?
The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.
CVE-2026-32244 has been classified to as an Information Disclosure vulnerability or weakness.
Operation on a Resource after Expiration or Release
The software uses, accesses, or otherwise operates on a resource after that resource has been expired, released, or revoked.
Products Associated with CVE-2026-32244
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Affected Versions
discourse:- Version < 2026.1.4 is affected.
- Version >= 2026.3.0-latest, < 2026.3.1 is affected.
- Version >= 2026.4.0-latest, < 2026.4.1 is affected.
- Version >= 2026.5.0-latest, < 2026.5.0-latest.1 is affected.
Exploit Probability
EPSS (Exploit Prediction Scoring System) scores estimate the probability that a vulnerability will be exploited in the wild within the next 30 days. The percentile shows you how this score compares to all other vulnerabilities.