What is CVE-2026-82376?

CVE-2026-82376 is a high-severity vulnerability in Apache Software Foundation Roller, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.7/10. Published 2026-09-28.

How severe is CVE-2026-82376?

High severity. CVSS v3 base score is 7.7 out of 10.

XXE in Apache Software Foundation Roller

CVE-2026-82376

Improper Restriction of XML External Entity Reference in Apache Roller 6.1.5 allows a user with entry-editing rights on a weblog to cause the server to parse an attacker-influenced trackback response with an XML parser that does not disable external entity resolution, leading to disclosure of files readable by the Roller process. The Trackback control is hidden in the standard UI, but its action remains directly reachable, and no non-default server configuration is required. Users are recommended to upgrade to Apache Roller 6.1.6 or later, which removes the outbound trackback response parser.

Vulnerability class: XXE (XML External Entity)

Published 2026-09-28 · last modified 2026-09-28.

CVSS v3 metric

CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Apache Software Foundation Roller — versions 6.1.5

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

github.com/apache/roller/pull/163 (patch)
lists.apache.org/thread/dxqmd3873q87h06xpjjc9lnvp4jblz0l (vendor-advisory)
af854a3a-2127-422b-91ae-364da2661108

Frequently asked questions

What is CVE-2026-82376?: CVE-2026-82376 is a high-severity vulnerability in Apache Software Foundation Roller, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.7/10. Published 2026-09-28.
How severe is CVE-2026-82376?: High severity. CVSS v3 base score is 7.7 out of 10.