---
title: "CVE-2026-82377: Apache Roller - Broken Access Control"
description: "Apache Roller 6.1.5 contains a broken access control vulnerability caused by missing authorization checks in legacy XML-RPC Blogger and MetaWeblog API handlers, letting authenticated users read, modify, or delete other weblogs' content, exploit requires enabled global XML-RPC setting."
url: https://panop.io/threat-heartbeat/CVE-2026-82377/
---

# CVE-2026-82377 Apache Roller - Broken Access Control

Apache Roller 6.1.5 contains a broken access control vulnerability caused by missing authorization checks in legacy XML-RPC Blogger and MetaWeblog API handlers, letting authenticated users read, modify, or delete other weblogs' content, exploit requires enabled global XML-RPC setting.

CVSS base score 9.9 /10

Critical

CISA KEV

Not listed

Public exploit

None known

Authentication

Required

EPSS

0.53% chance of exploitation in 30 days

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-82377)

## Details

Type

Broken Access Control

Impact

Data Tampering, Information Disclosure

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

Published

28 September 2026

Updated

15 October 2026

Weakness

[CWE-862](https://cwe.mitre.org/data/definitions/862.html)

## Vendor fix

Upgrade to Apache Roller 6.1.6 or later, or disable the XML-RPC feature.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-82377](https://nvd.nist.gov/vuln/detail/CVE-2026-82377)
- [https://github.com/apache/roller/pull/164](https://github.com/apache/roller/pull/164)
- [https://lists.apache.org/thread/phxx56n0w6jjqzto2my3ot8hto0qjvn8](https://lists.apache.org/thread/phxx56n0w6jjqzto2my3ot8hto0qjvn8)
- [http://www.openwall.com/lists/oss-security/2026/09/25/10](http://www.openwall.com/lists/oss-security/2026/09/25/10)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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