CVE-2013-0175: multi_xml gem 0.5.2 for Ruby, as used in Grape before 0.2.6 and possibly other products, does not properly res

This month

HIGH 7.5DOWNGRADEDOWNGRADE

CVE-2013-0175 is a high-severity flaw (CVSS 7.5) affecting multi xml, grape. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

multi_xml gem 0.5.2 for Ruby, as used in Grape before 0.2.6 and possibly other products, does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cause a denial of service (memory and CPU consumption) involving nested XML entity references, by leveraging support for (1) YAML type conversion or (2) Symbol type conversion, a similar vulnerability to CVE-2013-

Why this priority

High severity

No fix is published yet: follow the downgrade or mitigation steps.

Risk facts

CVSS score	7.5 (High)
EPSS exploit chance	3.7% (top 10%)
CISA exploited list	No
Weakness	CWE-20
Published	2013-04-25
Last modified	2026-06-16

Publisher (CNA): Red Hat, Inc. · Vendor: erik michaels-ober · grape project

Last updated 2026-06-16 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2013-04-25 23:55 UTCPublished CVE record published
2026-06-16 23:48 UTCUpdated Record last modified

erik michaels-ober multi xml DOWNGRADE

Affected: 0.5.2

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.5.2

1. Check installed version

apt-cache policy multi-xml || rpm -q multi-xml || multi-xml --version

2. No fixed release: DOWNGRADE to a release before 0.5.2 (Debian / Ubuntu)

apt-cache madison multi-xml sudo apt install multi-xml=<VERSION_BEFORE_0.5.2> sudo apt-mark hold multi-xml

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list multi-xml sudo dnf downgrade multi-xml-<VERSION_BEFORE_0.5.2> sudo dnf versionlock add multi-xml

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

grape project grape DOWNGRADE

Affected: 0.1.0 · 0.1.1 · 0.1.2 · 0.1.3 · 0.1.4 · 0.1.5 · 0.2.0 · 0.2.1

Fixed in: no fixed release known

Safe to downgrade to: a release before 0.1.0

1. Check installed version

apt-cache policy grape || rpm -q grape || grape --version

2. No fixed release: DOWNGRADE to a release before 0.1.0 (Debian / Ubuntu)

apt-cache madison grape sudo apt install grape=<VERSION_BEFORE_0.1.0> sudo apt-mark hold grape

2. No fixed release: DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list grape sudo dnf downgrade grape-<VERSION_BEFORE_0.1.0> sudo dnf versionlock add grape

Downgrade risk

Downgrading can break dependent software and may reopen older bugs. Read the distro advisory first and test on a non-production host.

After downgrade

Restart the service, and keep the package held until a fixed release ships.

Verify at the official source NVD · CVE Program · Report a problem with this page
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.

Quick answers

How do I fix CVE-2013-0175?

multi xml: downgrade or apply the listed mitigation; grape: downgrade or apply the listed mitigation. Exact commands for each OS are on this page.

Is CVE-2013-0175 being exploited?

CVE-2013-0175 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

What does CVE-2013-0175 affect?

CVE-2013-0175 affects multi xml, grape. Severity is high (CVSS 7.5). multi_xml gem 0.5.2 for Ruby, as used in Grape before 0.2.6 and possibly other products, does not properly restrict casts of string values, which allows remote attackers to conduct object-injection attacks and execute arbitrary code, or cau

How urgent is CVE-2013-0175?

Priority 49/100. High severity

Software pages

Ruby vulnerabilities

References

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