Apache Sling POST Servlets Denial of Service Vulnerability

published 2012-07-09 14 y ago modified 2026-06-16 4 mo ago also GHSA-342c-f869-5m44 , EUVD-2022-2101

cvss: 5.0; version 2.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 14.1%; EPSS 14.1% chance of exploitation in 30 days, percentile 96%
public exploits: 1; Exploit-DB

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.

Patch / fix

fixed in 1 links 1

maven org.apache.sling:org.apache.sling.servlets.post 2.1.2

github.com/apache/sling-org-apache-sling-servlets-post@0205892 commit

Timeline

2012-07-06 First public exploit (EDB-37487)
2012-07-09 Published

Exploit prediction

14.12% chance of exploitation in the next 30 days, higher than 96% of all scored CVEs (FIRST EPSS, 2026-11-09).

Exploits and checks

EDB-37487 Apache Sling - Denial of Service dos, 2012-07-06

CVSS scores

assigned by	version	score	vector
NVD	2.0	5.0	AV:N/AC:L/Au:N/C:N/I:N/A:P

Affected packages

ecosystem	package	affected	fixed in
maven	org.apache.sling:org.apache.sling.servlets.post	<2.1.2	2.1.2

Classification

Weakness

CWE-264 Permissions, Privileges, and Access Controls
CWE-400 Uncontrolled Resource Consumption

References

Sources

CVE List CVE-2012-2138
GitHub Advisory GHSA-342c-f869-5m44
NVD CVE-2012-2138

Fencer Intel 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.

Summary