CVE-2012-2138

CVE-2012-2138 is a medium-severity vulnerability in Apache Org.apache.sling.servlets.post with a CVSS 2.0 base score of 5.0. Its EPSS exploit-prediction score of 14% places it in the 96th percentile, indicating an elevated likelihood of exploitation. The underlying weakness is classified as CWE-264.

Key facts

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.

Frequently asked questions

What is CVE-2012-2138?
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.
How severe is CVE-2012-2138?
CVE-2012-2138 has a CVSS 2.0 base score of 5.0, rated medium severity.
Is CVE-2012-2138 being actively exploited?
It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 14% (96th percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2012-2138?
CVE-2012-2138 affects Apache Org.apache.sling.servlets.post. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2012-2138?
Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2012-2138 published?
CVE-2012-2138 was published on 2012-07-09 and last updated on 2026-06-16.

References

Affected products (1)

More vulnerabilities in Apache Org.apache.sling.servlets.post

All CVEs affecting Apache Org.apache.sling.servlets.post →

Other CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities

Browse all CWE-264 (Permissions, Privileges, and Access Controls) vulnerabilities →