CVE-2016-6809 json
Apache Tika allows Java code execution for serialized objects embedded in MATLAB files
published 2017-04-06 9 y ago modified 2026-06-17 4 mo ago also GHSA-j8g6-2wh7-6439 , EUVD-2018-0628
- cvss
- 9.8
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 8.0%
- EPSS 8.0% chance of exploitation in 30 days, percentile 94%
- public exploits
- 0
- none known
Summary
Apache Tika before 1.14 allows Java code execution for serialized objects embedded in MATLAB files. The issue exists because Tika invokes JMatIO to do native deserialization.
Patch / fix
Vendor advisories
What the vendors themselves say about their products: affected, fixed or not affected, and what to do.
red hat product security vex CVE-2016-6809 updated cvss 7.8
tika: Native deserialization of Java objects in matlab files
-
Red Hat Software Collections rh-eclipse46-tika, rh-eclipse46-tika-java7, rh-eclipse46-tika-javadoc, rh-eclipse46-tika-parsers, rh-eclipse46-tika-serializationaffected: no fix planned “Will not fix”
Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf
Exploit prediction
8.03% chance of exploitation in the next 30 days, higher than 94% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
| NVD | 2.0 | 7.5 | AV:N/AC:L/Au:N/C:P/I:P/A:P |
| GitHub | 3.1 | 9.8 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.tika:tika-core | <1.14 |
1.14 |
Classification
- Weakness
-
- CWE-502 Deserialization of Untrusted Data
References
-
github.com
/apache/tika/commit/8a68b5d474205cc91cbbb610d4a1c05af57f0610
web
-
dist.apache.org
/repos/dist/release/tika/CHANGES-1.14.txt
web, release-notes, vendor-advisory
-
securityfocus.com
/bid/94247
vdb-entry, web, third-party-advisory
-
seclists.org
/bugtraq/2016/Nov/40
web, mailing-list, third-party-advisory, vdb-entry
-
lists.apache.org
/thread.html/e414754a6c57ce7194b731e211cd6b2cbb41f2c7000e3fb9c6b6ec78%40%3Cdev.lucene.apache.org%3E
mailing-list
-
lists.apache.org
/thread.html/91eb639ef619b9a26b40020ca6732e7dbe457f7322ed5f1df49e411a%40%3Cdev.nutch.apache.org%3E
mailing-list
-
lists.apache.org
/thread.html/d2375da29d89e679abf5d845db76d6f798fdc6f7d44f2c788e8a0fb9%40%3Cuser.nutch.apache.org%3E
mailing-list
-
lists.apache.org
/thread.html/r2f6f6c130b12b7332f323f74d031072b1517065ce28a22346791ffb6%40%3Cissues.lucene.apache.org%3E
mailing-list
-
lists.apache.org
/thread.html/rfd3646bb724b66b1a9ddef69e692da2b7a727a8799551c78eedf0a0f%40%3Cissues.lucene.apache.org%3E
mailing-list
-
nvd.nist.gov
/vuln/detail/CVE-2016-6809
advisory
-
github.com
/advisories/GHSA-j8g6-2wh7-6439
advisory
-
github.com
/apache/tika
package
-
lists.apache.org
/thread.html/91eb639ef619b9a26b40020ca6732e7dbe457f7322ed5f1df49e411a@%3Cdev.nutch.apache.org%3E
web
-
lists.apache.org
/thread.html/d2375da29d89e679abf5d845db76d6f798fdc6f7d44f2c788e8a0fb9@%3Cuser.nutch.apache.org%3E
web
-
lists.apache.org
/thread.html/e414754a6c57ce7194b731e211cd6b2cbb41f2c7000e3fb9c6b6ec78@%3Cdev.lucene.apache.org%3E
web
-
lists.apache.org
/thread.html/r2f6f6c130b12b7332f323f74d031072b1517065ce28a22346791ffb6@%3Cissues.lucene.apache.org%3E
web
-
lists.apache.org
/thread.html/rfd3646bb724b66b1a9ddef69e692da2b7a727a8799551c78eedf0a0f@%3Cissues.lucene.apache.org%3E
web
Sources
- CVE List CVE-2016-6809
- GitHub Advisory GHSA-j8g6-2wh7-6439
- NVD CVE-2016-6809
Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.