CVE-2025-61598
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-10-28

Last updated on: 2025-12-03

Assigner: GitHub, Inc.

Description
Discourse is an open source discussion platform. Version before 3.6.2 and 3.6.0.beta2, default Cache-Control response header with value no-store, no-cache was missing from error responses. This may caused unintended caching of those responses by proxies potentially leading to cache poisoning attacks. This vulnerability is fixed in 3.6.2 and 3.6.0.beta2.
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Meta Information
Published
2025-10-28
Last Modified
2025-12-03
Generated
2026-06-16
AI Q&A
2025-10-28
EPSS Evaluated
2026-06-15
NVD
CVE-2025-61598
Affected Vendors & Products
Showing 3 associated CPEs
Vendor Product Version / Range
discourse discourse to 3.5.2 (exc)
discourse discourse to 3.6.0 (exc)
discourse discourse 3.6.0
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-524 The code uses a cache that contains sensitive information, but the cache can be read by an actor outside of the intended control sphere.
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Executive Summary

This vulnerability in Discourse versions before 3.6.2 and 3.6.0.beta2 involves missing Cache-Control response headers (no-store, no-cache) on error responses. Without these headers, error responses could be cached by proxies unintentionally, which may lead to cache poisoning attacks where malicious or outdated error responses are served to users.

Impact Analysis

The vulnerability can lead to cache poisoning attacks, meaning that users might receive incorrect or malicious error responses cached by proxies. This can cause confusion, misinformation, or potential security risks if sensitive error information is cached and served improperly.

Mitigation Strategies

Upgrade Discourse to version 3.6.2 or 3.6.0.beta2 where the vulnerability is fixed. Ensure that error responses include the Cache-Control header with the value 'no-store, no-cache' to prevent unintended caching by proxies.

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