SOC status:Duty analyst on shift

UK Cyber Defence
VulnerabilityModified

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…

EXPLOIT ✓MEDIUM 5.0EPSS 14.1%

Does this matter?

EPSS puts the probability of exploitation in the next 30 days at 14.1%, higher than 97% of all known CVEs. Patch or mitigate before the next change window.

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.

CVSS 2.0
5.0 MEDIUMAV:N/AC:L/Au:N/C:N/I:N/A:P
EPSS
14.12% probability · 97th percentile
Public exploits
1 in Exploit-DB · verified · first 6 July 2012
CISA KEV
Not listed
Weakness
CWE-264
Affected
apache/org.apache.sling.servlets.post
Source
secalert@redhat.com
EPSS trend
0%8%15%4 November 2026: 14.12%4 November 20264 November 2026

EPSS 14.1% since 4 November 2026; no change recorded yet. The dashed line is the ten per cent mark our analysts treat as “patch before the next change window”. Points are recorded when the score first appears and whenever it moves by a percentage point or more.

Public exploits (1)

Entries in Exploit-DB that cite this CVE. Links go to the Exploit-DB page and to the file in the public repository; nothing is hosted here. A verified tick means the Exploit-DB team confirmed the exploit works against the stated version.

EDB-IDTitleTypePublishedVerified
EDB-37487source ↗Apache Sling - Denial of Servicemultiple · IOactivedos6 July 2012yes

Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.