CVE-2026-6501 jOpenDocument has an improper restriction of XML external entity reference vulnerability
An attacker can cause a denial of service via XML external entity blowup in the jOpenDocument library.
- 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-2026-6501?
CVE-2026-6501 is a medium-severity vulnerability in ILM Informatique jOpenDocument, published on 4 May 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 vulnerability in ILM Informatique jOpenDocument allows Data Serialization External Entities Blowup.
This issue affects jOpenDocument: 1.5.
Weakness: CWE-611
Which versions are affected by CVE-2026-6501?
2 open source packages ship an affected version, including org.jopendocument:jOpenDocument.
| Package | Affected | Fixed in |
|---|---|---|
org.jopendocument:jOpenDocument Maven | All versions to 1.3 | None |
org.jopendocument:jOpenDocument Maven | All versions to 1.3 | None |
How do I fix CVE-2026-6501?
No fix has been published for CVE-2026-6501 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-6501 being exploited?
There is no known exploitation of CVE-2026-6501 in the wild and no public exploit code.
Sources
Also known as GHSA-j9rh-p96m-mhhp.