Is CVE-2012-2138 being actively exploited?

CVE-2012-2138 is not currently listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

What is the CVSS score for CVE-2012-2138?

CVE-2012-2138 has a CVSS 2.0 base score of 5.0 (MEDIUM).

CVE-2012-2138

MEDIUM · CVSS 5.0EPSS 14.1%EU EUVD

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.

Key facts

CVSS score: 5.0 (v2.0)
Severity: MEDIUM
CVSS vector: AV:N/AC:L/Au:N/C:N/I:N/A:P
Weakness (CWE): CWE-264
EPSS score: 14.1% (97th percentile)
In CISA KEV: No
In EU EUVD: Yes (EUVD-2022-2101)
Published: July 9, 2012
NVD last modified: June 16, 2026
Status: Modified

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2022-2101 in the EU Vulnerability Database. Last updated in EUVD on September 16, 2024.

View on the EU Vulnerability Database

Affected products

apache / org.apache.sling.servlets.post
apache / sling

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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