CVE-2026-82376 Apache Roller: XML external entity processing in trackback response parser
An attacker with entry-editing rights can exploit XML external entity processing in trackback responses to disclose server files.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-82376?
CVE-2026-82376 is a high-severity vulnerability in Apache Roller, published on 28 Sep 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-611
Which versions are affected by CVE-2026-82376?
How do I fix CVE-2026-82376?
No fix has been published for CVE-2026-82376 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-82376 being exploited?
There is no known exploitation of CVE-2026-82376 in the wild and no public exploit code.
Sources
Also known as GHSA-hfqv-pmcp-9hpg.