Critical 9.9Published Sep 28, 2026

CVE-2026-82377Apache Roller: Missing weblog authorization in XML-RPC Blogger/MetaWeblog handlers

Updated under an hour ago (2026-10-19 09:10 UTC)

Does this affect you?

It affects Apache Software Foundation Apache Roller. Add what you run to find out whether that includes you.

EPSS puts the chance of exploitation in the next 30 days at 0.53%, higher than 43% of scored CVEs.

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Every CVE for Apache Software Foundation Apache Roller

Exploited in the last 30 days

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: 9.9 CRITICAL (v3.1, CNA)CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Weakness (CWE): CWE-862
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): 0.53% (percentile 43)
Assigned by: apache
NVD analysis: Deferred
Record last updated: Sep 29, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Apache Software Foundation Apache Roller apache_software_foundation:apache_roller (from the name)	6.1.5	CNA record

References

https://github.com/apache/roller/pull/164patch
https://lists.apache.org/thread/phxx56n0w6jjqzto2my3ot8hto0qjvn8vendor-advisory
http://www.openwall.com/lists/oss-security/2026/09/25/10

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.