CVE-2026-90631: Apache OpenOffice · Improper Authorization in Handler for Custom URL Scheme
Affects Apache OpenOfficeSource CVE Database V5
Not known to be exploited · fixed in 4.1.17 : patch Apache OpenOffice soon.
Data as of 4 Nov 2026, 12:43 UTC
Rated High by Threat Radar's AI analysis · CVSS not yet scored by NVD
Thin evidence
One scorer or none- Patch
- Available – fixed in 4.1.17
Exploitation evidence
Disclosed: evidence found.
CVE published 4 Nov 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponized: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 4 Nov 2026.
What to do
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Apache Software FoundationApache OpenOffice | Affected
| Fixed in– |
Mavenorg.apache.openoffice/openofficepkg:maven/org.apache.openoffice/openofficeOther threats | Affected
| Fixed in– |
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
Users should upgrade Apache OpenOffice to version 4.1.17 or later, where this vulnerability is fixed. No other mitigation steps are indicated.
Description
Apache OpenOffice documents can contain links. A missing Authorization vulnerability in Apache OpenOffice allowed an attacker to craft a document that would cause external links to be loaded without prompt, possibly transferring the contents of environment variables in the process. This issue affects Apache OpenOffice: through 4.1.16. Users are recommended to upgrade to version 4.1.17, which fixes the issue.