CVE-2026-82377: CWE-862: Missing Authorization in Apache Software Foundation Apache Roller
Missing Authorization in Apache Roller 6.1.5 allows an authenticated user to read, modify, or delete weblog content belonging to other weblogs through the legacy XML-RPC Blogger and MetaWeblog APIs, because the handlers authenticate the caller but do not verify the caller's permission on the weblog or entry actually affected. Only installations that enable the non-default global XML-RPC setting are affected; the per-weblog API flag defaults to enabled for UI-created weblogs. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which applies an explicit per-method permission check, or to keep the XML-RPC feature disabled.
AI Analysis
Technical Summary
CVE-2026-82377 is a missing authorization vulnerability (CWE-862) in Apache Roller version 6.1.5. The legacy XML-RPC Blogger and MetaWeblog APIs authenticate the caller but fail to verify the caller's permissions on the weblog or entry being accessed or modified. This allows an authenticated user to read, modify, or delete content belonging to other weblogs. The vulnerability only affects installations where the global XML-RPC setting is enabled, which is not the default. The per-weblog API flag is enabled by default for weblogs created via the UI. Apache Roller 6.1.6 and later versions address this issue by implementing explicit per-method permission checks.
Potential Impact
An authenticated user can perform unauthorized read, modification, or deletion of weblog content belonging to other weblogs via the legacy XML-RPC APIs. This can lead to complete compromise of weblog content integrity and confidentiality. The vulnerability has a CVSS 3.1 score of 9.9 (critical), indicating high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade Apache Roller to version 6.1.6 or later, which includes explicit per-method permission checks to fix this vulnerability. Alternatively, disable the global XML-RPC feature if it is not required, as the vulnerability only affects installations with this non-default setting enabled.
CVE-2026-82377: CWE-862: Missing Authorization in Apache Software Foundation Apache Roller
Description
Missing Authorization in Apache Roller 6.1.5 allows an authenticated user to read, modify, or delete weblog content belonging to other weblogs through the legacy XML-RPC Blogger and MetaWeblog APIs, because the handlers authenticate the caller but do not verify the caller's permission on the weblog or entry actually affected. Only installations that enable the non-default global XML-RPC setting are affected; the per-weblog API flag defaults to enabled for UI-created weblogs. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which applies an explicit per-method permission check, or to keep the XML-RPC feature disabled.
CVSS v3.1
Score 9.9critical
Affected software
Apache Software Foundation
Apache Roller
pkg:maven/org.apache.roller/rollerRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-82377 is a missing authorization vulnerability (CWE-862) in Apache Roller version 6.1.5. The legacy XML-RPC Blogger and MetaWeblog APIs authenticate the caller but fail to verify the caller's permissions on the weblog or entry being accessed or modified. This allows an authenticated user to read, modify, or delete content belonging to other weblogs. The vulnerability only affects installations where the global XML-RPC setting is enabled, which is not the default. The per-weblog API flag is enabled by default for weblogs created via the UI. Apache Roller 6.1.6 and later versions address this issue by implementing explicit per-method permission checks.
Potential Impact
An authenticated user can perform unauthorized read, modification, or deletion of weblog content belonging to other weblogs via the legacy XML-RPC APIs. This can lead to complete compromise of weblog content integrity and confidentiality. The vulnerability has a CVSS 3.1 score of 9.9 (critical), indicating high impact on confidentiality, integrity, and availability.
Mitigation Recommendations
Upgrade Apache Roller to version 6.1.6 or later, which includes explicit per-method permission checks to fix this vulnerability. Alternatively, disable the global XML-RPC feature if it is not required, as the vulnerability only affects installations with this non-default setting enabled.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- apache
- Date Reserved
- 2026-08-28T20:38:02.732Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6aba1bc6f7a7c541065ca3d6
Added to database: 09/28/2026, 07:48:22 UTC
Last enriched: 09/28/2026, 08:02:52 UTC
Last updated: 09/29/2026, 01:57:23 UTC
Views: 19
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