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CVE-2012-2138

35
FAUCET Score

CVE-2012-2138 describes a denial-of-service vulnerability in the Apache Sling org.apache.sling.servlets.post bundle, specifically affecting versions before 2.1.2. The flaw allows remote, unauthenticated attackers to trigger an infinite loop by using the @CopyFrom operation to copy an ancestor node to a descendant node. This vulnerability has a CVSS score of 5.0, indicating a medium severity, and is easily exploitable with low attack complexity. While there is no evidence of active exploitation, a public exploit (EDB-37487) exists, though community discussion and media coverage are minimal.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.1.0CPE matchmatch criteria
cpe:2.3:a:apache:org.apache.sling.servlets.post:*:*:*:*:*:*:*:*

CVSS Data

CVSS version used by this source: 2.0

5.0MEDIUM

AV:N/AC:L/Au:N/C:N/I:N/A:P

Confidentiality Impact
NONE
Integrity Impact
NONE
Availability Impact
PARTIAL
Access Vector
NETWORK
Access Complexity
LOW
Authentication
NONE
Exploitability Score
10.0
Impact Score
2.9
CvssVersion
2.0

Exploit Intelligence

EPSS Score
14.12%
Probability of exploitation in next 30 days
EPSS Percentile
96.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-24
Model: v2026.06.15
ExploitDB: EDB-37487 · Jul 6, 2012
This CVE's current EPSS score of 0.1412 is in the 96th percentile among its peer group of 23,690 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (1)

mavenpatch availablevia ghsa
Product: org.apache.sling:org.apache.sling.servlets.postFixed in: 2.1.2

Vendor Advisories (1)

mavenGHSA-342c-f869-5m44medium

Apache Sling POST Servlets Denial of Service Vulnerability

May 17, 2022

References

mail-archives.apache.org / mod_mbox/www-announce/201207.mbox/%3CCAEWfVJ=PwoQmwJg0KmbrC17Gw51kgfKRsqgy=4RpMQsdGh0bVg%40mail.gmail.com%3E
issues.apache.org / jira/browse/SLING-2517
svn.apache.org / viewvc