CVE-2012-2138

Severity: medium (CVSS 5.0 v2.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 14.1% probability of exploitation in the next 30 days
Public exploit or detection template: yes
Published: 2012-07-09 · updated 2026-06-16
Weakness: CWE-264

Description

The @CopyFrom operation in the POST servlet in the org.apache.sling.servlets.post bundle before 2.1.2 in Apache Sling does not prevent attempts to copy an ancestor node to a descendant node, which allows remote attackers to cause a denial of service (infinite loop) via a crafted HTTP request.

Affected products

Apache Org.Apache.Sling.Servlets.Post: through 2.1.0

References

http://mail-archives.apache.org/mod_mbox/www-announce/201207.mbox/%3CCAEWfVJ=PwoQmwJg0KmbrC17Gw51kgfKRsqgy=4RpMQsdGh0bVg%40mail.gmail.com%3E
http://svn.apache.org/viewvc?view=revision&revision=1352865
https://issues.apache.org/jira/browse/SLING-2517
http://mail-archives.apache.org/mod_mbox/www-announce/201207.mbox/%3CCAEWfVJ=PwoQmwJg0KmbrC17Gw51kgfKRsqgy=4RpMQsdGh0bVg%40mail.gmail.com%3E
http://svn.apache.org/viewvc?view=revision&revision=1352865
https://issues.apache.org/jira/browse/SLING-2517

Get alerted when CVE-2012-2138 or the next vulnerability affects your stack