Discourse up to 3.6.0.beta1/3.6.1 Response Header Cache-Control cache containing sensitive information

CVSS Meta Temp Score
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CTI Interest Score
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5.2$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Discourse up to 3.6.0.beta1/3.6.1. This impacts an unknown function of the component Response Header Handler. Performing a manipulation of the argument Cache-Control results in use of cache containing sensitive information. This vulnerability is cataloged as CVE-2025-61598. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability, which was classified as problematic, was found in Discourse up to 3.6.0.beta1/3.6.1. This affects some unknown functionality of the component Response Header Handler. The manipulation of the argument Cache-Control with an unknown input leads to a use of cache containing sensitive information vulnerability. CWE is classifying the issue as 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. This is going to have an impact on confidentiality. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is uniquely identified as CVE-2025-61598 since 09/26/2025. The exploitability is told to be easy. It is possible to initiate the attack remotely. No form of authentication is needed for exploitation. Technical details of the vulnerability are known, but there is no available exploit. The attack technique deployed by this issue is T1592 according to MITRE ATT&CK.

Upgrading to version 3.6.0.beta2 or 3.6.2 eliminates this vulnerability.

Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Type

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA CVSS-B Score: 🔒
CNA CVSS-BT Score: 🔒
CNA Vector: 🔒

CVSSv3info

VulDB Meta Base Score: 5.3
VulDB Meta Temp Score: 5.2

VulDB Base Score: 5.3
VulDB Temp Score: 5.1
VulDB Vector: 🔒
VulDB Reliability: 🔍

NVD Base Score: 5.3
NVD Vector: 🔒

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Use of cache containing sensitive information
CWE: CWE-524
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Discourse 3.6.0.beta2/3.6.2

Timelineinfo

09/26/2025 CVE reserved
10/28/2025 +32 days Advisory disclosed
10/28/2025 +0 days VulDB entry created
12/04/2025 +37 days VulDB entry last update

Sourcesinfo

Product: github.com

Advisory: github.com
Status: Confirmed

CVE: CVE-2025-61598 (🔒)
GCVE (CVE): GCVE-0-2025-61598
GCVE (VulDB): GCVE-100-330339

Entryinfo

Created: 10/28/2025 22:41
Updated: 12/04/2025 03:27
Changes: 10/28/2025 22:41 (67), 12/04/2025 03:27 (10)
Complete: 🔍
Cache ID: 216::103

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