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VulnerabilityPublished

CVE-2026-90631: Apache OpenOffice · Improper Authorization in Handler for Custom URL Scheme

Affects Apache OpenOfficeSource CVE Database V5

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Not known to be exploited · fixed in 4.1.17 : patch Apache OpenOffice soon.

Data as of 4 Nov 2026, 12:43 UTC

Severity
High

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

  1. Disclosed: evidence found.

    CVE published 4 Nov 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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

ProductAffectedFixed in
Apache Software FoundationApache OpenOfficeAffected
  • <=4.1.16
Fixed in–
Mavenorg.apache.openoffice/openofficepkg:maven/org.apache.openoffice/openofficeOther threatsAffected
  • <=4.1.16
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.

References

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