CVE-2021-23901 json
An XML external entity (XXE) injection vulnerability exists in the Nutch DmozParser
published 2021-01-25 5 y ago modified 2026-06-17 4 mo ago also GHSA-fxhp-wrw9-3r97 , EUVD-2022-1420
- cvss
- 9.1
- version 3.1, NVD
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 4.4%
- EPSS 4.4% chance of exploitation in 30 days, percentile 91%
- public exploits
- 0
- none known
Summary
An XML external entity (XXE) injection vulnerability was discovered in the Nutch DmozParser and is known to affect Nutch versions < 1.18. XML external entity injection (also known as XXE) is a web security vulnerability that allows an attacker to interfere with an application's processing of XML data. It often allows an attacker to view files on the application server filesystem, and to interact with any back-end or external systems that the application itself can access. This issue is fixed in Apache Nutch 1.18.
Patch / fix
- maven org.apache.nutch:nutch 1.18
- apache nutch 1.18
- smdba Manager Server Module 4.0 1.7.8-0.3.3.2
- spacecmd Manager Server Module 4.0 4.0.22-3.25.2
- nutch-core Manager Server Module 4.0 1.0.1-4.5.2
- spacewalk-web Manager Server Module 4.0 4.0.26-3.39.3
- spacewalk-java Manager Server Module 4.0 4.0.41-3.51.2
- spacewalk-utils Manager Server Module 4.0 4.0.19-3.24.2
- susemanager-sls Manager Server Module 4.0 4.0.32-3.40.2
- spacewalk-backend Manager Server Module 4.0 4.0.36-3.41.2
suse advisories SUSE-SU-2021:0448-1SUSE-SU-2021:0323-1
- github.com/apache/nutch#563 pull request
- issues.apache.org/jira/browse/NUTCH-2841 advisory
Exploit prediction
4.41% chance of exploitation in the next 30 days, higher than 91% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| NVD | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
| NVD | 2.0 | 6.4 | AV:N/AC:L/Au:N/C:P/I:P/A:N |
| GitHub | 3.1 | 9.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| maven | org.apache.nutch:nutch | <1.18 |
1.18 |
Affected products
- Apache Software Foundation Apache Nutch
Classification
- Weakness
-
- CWE-611 Improper Restriction of XML External Entity Reference
References
-
issues.apache.org
/jira/browse/NUTCH-2841
web, issue-tracking, patch, vendor-advisory
-
github.com
/apache/nutch/pull/563
web
-
lists.apache.org
/thread.html/r090321840b44cc91086c4e317bf2baffa270749dde6c1273b6567f7c%40%3Cdev.nutch.apache.org%3E
web, mailing-list, vendor-advisory
-
lists.apache.org
/thread.html/r7ddfd680aa7ea001ca8da63bb23e3f8caa095a8b4f2261e46bade5c7%40%3Cdev.nutch.apache.org%3E
mailing-list
-
lists.apache.org
/thread.html/r5e2f7737b42c73a3325f3c2c8cdee1ec27631b3a0e144104d84d70e6%40%3Cannounce.apache.org%3E
mailing-list
-
security.netapp.com
/advisory/ntap-20210513-0003/
third-party-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2021-23901
advisory
-
lists.apache.org
/thread.html/r5e2f7737b42c73a3325f3c2c8cdee1ec27631b3a0e144104d84d70e6@%3Cannounce.apache.org%3E
web
-
lists.apache.org
/thread.html/r7ddfd680aa7ea001ca8da63bb23e3f8caa095a8b4f2261e46bade5c7@%3Cdev.nutch.apache.org%3E
web
-
security.netapp.com
/advisory/ntap-20210513-0003
web
Sources
- CVE List CVE-2021-23901
- GitHub Advisory GHSA-fxhp-wrw9-3r97
- NVD CVE-2021-23901
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