VULNERABILITY INTELLIGENCE

CVE-2021-41271

CVSS score4.8 MEDIUM

EPSS probability0.97%

CISA KEVNot currently listed

Published2021-11-15

Last modified2026-06-17

CVSS vectorCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

Description

Discourse is a platform for community discussion. In affected versions a maliciously crafted request could cause an error response to be cached by intermediate proxies. This could cause a loss of confidentiality for some content. This issue is patched in the latest stable, beta and tests-passed versions of Discourse.

Weakness classification

CWE-200: Exposure of Sensitive Information to an Unauthorized Actor

Primary references

security-advisories@github.com — Patch, Third Party Advisory
security-advisories@github.com — Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Patch, Third Party Advisory
af854a3a-2127-422b-91ae-364da2661108 — Third Party Advisory