๐Ÿ” CVE Alert

CVE-2026-82377

CRITICAL 9.9

Apache Roller: Missing weblog authorization in XML-RPC Blogger/MetaWeblog handlers

CVSS Score
9.9
EPSS Score
0.0%
EPSS Percentile
0th

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.

CWE CWE-862
Vendor apache software foundation
Product apache roller
Published Sep 28, 2026
Last Updated Sep 28, 2026
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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

Affected Versions

Apache Software Foundation / Apache Roller
6.1.5

References

NVD โ†— CVE.org โ†— EPSS Data โ†—
github.com: https://github.com/apache/roller/pull/164 lists.apache.org: https://lists.apache.org/thread/phxx56n0w6jjqzto2my3ot8hto0qjvn8 openwall.com: http://www.openwall.com/lists/oss-security/2026/09/25/10

Credits

meifukun n0mi1k Ivan Iushkevich (Steph)