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CRITICAL severity

CVE-2015-3253 — groovy

CRITICAL

CVE-2015-3253 is a critical-severity (CVSS 9.8) CWE-74 vulnerability in org.codehaus.groovy:groovy. EPSS puts its 30-day exploitation probability at 41.0% (99th percentile). A fix is available for org.codehaus.groovy:groovy — see the affected versions and patch details below.

Improper Neutralization of Special Elements in Output Used by a Downstream Component in Apache Groovy

Also known asGHSA-qg25-hgjv-cg9q
Published
Updated
Affected
2 pkgs
Patched
2 / 2
Exploits
None indexed
Exploitation data as of Nov 10, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

EPSS Exploitation Probability

via FIRST.org ↗
41.0%probability of exploitation in next 30 days
High Risk0.00%
Lower risk than most CVEs99th percentile — riskier than 99% of all scored CVEsHighest risk
32.4%47.7%63.0%78.3%69.7%41.0%May 26Sep 26Nov 26

Probability of exploitation in the next 30 days, from FIRST.org EPSS.

How urgent is this, really

Where this sits among everything scored

Real-World Exposure

2 pkgs affected
☕org.codehaus.groovy:groovy☕org.codehaus.groovy:groovy-all

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Maven packages — download data is not available via public APIs for these ecosystems.

Description

The MethodClosure class in runtime/MethodClosure.java in Apache Groovy 1.7.0 through 2.4.3 allows remote attackers to execute arbitrary code or cause a denial of service via a crafted serialized object.

Affected Packages

2 total 2 fixed
EcosystemPackageVulnerable rangeFix
☕Mavenorg.codehaus.groovy:groovy≥ 1.7.0&&< 2.4.42.4.4org.codehaus.groovy:groovy:2.4.4
☕Mavenorg.codehaus.groovy:groovy-all≥ 1.7.0&&< 2.4.42.4.4org.codehaus.groovy:groovy-all:2.4.4

Affected Products

6 products · 120 configurations
Application
groovyapache
61 versions
1.7.01.7.11.7.21.7.31.7.41.7.51.7.61.7.71.7.81.7.91.7.101.7.11
Application
health sciences clinical development centeroracle
2 versions
3.1.13.1.2
Application
retail order broker cloud serviceoracle
4 versions
4.15.15.215.0
Application
retail service backboneoracle
6 versions
13.013.113.214.014.115.0
Application
retail store inventory managementoracle
3 versions
13.214.014.1
Application
webcenter sitesoracle
2 versions
11.1.1.8.012.2.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for org.codehaus.groovy:groovy, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

  2. Fix

    Update org.codehaus.groovy:groovy to 2.4.4 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2015-3253 is resolved across your whole dependency graph.

  3. Workarounds

    Cap what an attacker can consume: apply request size, rate and timeout limits in front of the affected component, and run it with memory and CPU limits so exhaustion degrades one worker rather than the whole service.

Fixing This On Your OS

If you run this on a Linux distribution, patch through your package manager against the distro's own security advisory below — it tracks the exact backported fix for your release, which can ship on a different timeline (and sometimes a different severity) than the upstream project.

Red HatImportant
Workaround published by Red Hat
Apply the following patch on the MethodClosure class (src/main/org/codehaus/groovy/runtime/MethodClosure.java): public class MethodClosure extends Closure { + private Object readResolve() { + throw new UnsupportedOperationException(); + } Alternatively, you should make sure to use a custom security policy file (using the standard Java security manager) or make sure that you do not rely on serialization to communicate remotely.
Source: Red Hat security advisory for CVE-2015-3253 (CC BY 4.0)
ProductFixed inAdvisory
Red Hat Enterprise Linux 7groovy-0:1.8.9-8.el7_4RHSA-2017:2486
Red Hat JBoss A-MQ 6.2see advisoryRHSA-2015:2557
Red Hat JBoss Data Virtualization 6.2groovy-allRHSA-2016:0066
Red Hat JBoss Fuse 6.2see advisoryRHSA-2015:2556
Red Hat JBoss Fuse Service Works 6.2see advisoryRHSA-2015:2558
Red Hat JBoss Operations Network 3.3groovy-allRHSA-2016:0118
Red Hat JBoss SOA Platform 5.3grovy-allRHSA-2016:1376
Red Hat Software Collections for Red Hat Enterprise Linux 6rh-maven33-groovy-0:1.8.9-7.19.el6RHSA-2017:2596

Frequently Asked Questions

The MethodClosure class in runtime/MethodClosure.java in Apache Groovy 1.7.0 through 2.4.3 allows remote attackers to execute arbitrary code or cause a denial of service via a crafted serialized object.
O3 Security · Impact-Aware SCA

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CVE-2015-3253: groovy RCE — Fixed in 2.4.4