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CVE-2021-41271 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:5.3 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

CNA: [email protected]CVSS-B:4.8 MEDIUMVector:CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:L

References to Advisories, Solutions, and Tools

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URL	Source(s)	Tag(s)
https://github.com/discourse/discourse/commit/2da0001965c6d8632d723c46ea5df9f22a1a23f1	CVE	PatchThird Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-hf6r-mc9j-hf4p	CVE	Third Party Advisory
https://github.com/discourse/discourse/commit/2da0001965c6d8632d723c46ea5df9f22a1a23f1	[email protected]	PatchThird Party Advisory
https://github.com/discourse/discourse/security/advisories/GHSA-hf6r-mc9j-hf4p	[email protected]	Third Party Advisory

Weakness Enumeration

CWE-ID	CWE Name	Source
CWE-200	Exposure of Sensitive Information to an Unauthorized Actor	[email protected]

Affected Products

Product	Versions
discourse discourse	<= 2.7.9 2.8.0 beta1 2.8.0 beta2 2.8.0 beta3 2.8.0 beta4
CPE cpe:2.3:a:discourse:discourse:::::::: cpe:2.3:a:discourse:discourse:2.8.0:beta1:::::: cpe:2.3:a:discourse:discourse:2.8.0:beta2:::::: cpe:2.3:a:discourse:discourse:2.8.0:beta3:::::: cpe:2.3:a:discourse:discourse:2.8.0:beta4:::::: cpe:2.3:a:discourse:discourse:2.8.0:beta5:::::: cpe:2.3:a:discourse:discourse:2.8.0:beta6:::::: cpe:2.3:a:discourse:discourse:2.8.0:beta7:::::: Remediation No remediation found in references.

Product

Versions

discourse discourse

<= 2.7.9

2.8.0 beta1

2.8.0 beta2

2.8.0 beta3

2.8.0 beta4

CPE

cpe:2.3:a:discourse:discourse:*:*:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:2.8.0:beta1:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:2.8.0:beta2:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:2.8.0:beta3:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:2.8.0:beta4:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:2.8.0:beta5:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:2.8.0:beta6:*:*:*:*:*:*
cpe:2.3:a:discourse:discourse:2.8.0:beta7:*:*:*:*:*:*

Remediation

No remediation found in references.

Change History

4 change records found show changes

Date	Action	Recorded By
Jun 17, 2026	CVE Modified	[email protected]
Nov 21, 2024	CVE Modified	CVE
May 14, 2024	CVE Modified	[email protected]
Nov 17, 2021	Initial Analysis	[email protected]