CVE-2024-35176: REXML is an XML toolkit for Ruby

Q: How do I fix CVE-2024-35176?

rexml: upgrade to 3.2.7. Exact commands for each OS are on this page.

Q: Is CVE-2024-35176 being exploited?

CVE-2024-35176 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2024-35176 affect?

CVE-2024-35176 affects rexml. Severity is medium (CVSS 5.3). REXML is an XML toolkit for Ruby. The REXML gem before 3.2.6 has a denial of service vulnerability when it parses an XML that has many `<`s in an attribute value. Those who need to parse untrusted XMLs may be impacted to this vulnerability

Q: How urgent is CVE-2024-35176?

Priority 44/100. Remotely exploitable, no login, no user action

This month

MEDIUM 5.3REMOTEUPGRADE

CVE-2024-35176 is a medium-severity flaw (CVSS 5.3) affecting rexml. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

REXML is an XML toolkit for Ruby. The REXML gem before 3.2.6 has a denial of service vulnerability when it parses an XML that has many `<`s in an attribute value. Those who need to parse untrusted XMLs may be impacted to this vulnerability. The REXML gem 3.2.7 or later include the patch to fix this vulnerability. As a workaround, don't parse untrusted XMLs.

Why this priority

Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	5.3 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	2.1% (top 19%)
CISA exploited list	No
Weakness	CWE-400, CWE-770
Published	2024-05-16
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: ruby-lang

Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2024-05-16 16:15 UTCPublished CVE record published
2026-06-17 07:34 UTCUpdated Record last modified

ruby-lang rexml UPGRADE

Affected: < 3.2.7

Fixed in: 3.2.7

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 3.2.7 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade rexml

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade rexml

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

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-2024-35176?

rexml: upgrade to 3.2.7. Exact commands for each OS are on this page.

Is CVE-2024-35176 being exploited?

CVE-2024-35176 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-2024-35176 affect?

CVE-2024-35176 affects rexml. Severity is medium (CVSS 5.3). REXML is an XML toolkit for Ruby. The REXML gem before 3.2.6 has a denial of service vulnerability when it parses an XML that has many `<`s in an attribute value. Those who need to parse untrusted XMLs may be impacted to this vulnerability

How urgent is CVE-2024-35176?

Priority 44/100. Remotely exploitable, no login, no user action

Software pages

Ruby vulnerabilities

Related CVEs

CVE-2024-49761 HIGH 7.5 UPGRADE DOWNGRADE REXML is an XML toolkit for Ruby
CVE-2024-43398 MEDIUM 5.9 UPGRADE MITIGATE REXML is an XML toolkit for Ruby
CVE-2024-41946 MEDIUM 5.3 UPGRADE REXML is an XML toolkit for Ruby
CVE-2024-41123 MEDIUM 5.3 UPGRADE REXML is an XML toolkit for Ruby
CVE-2024-39908 MEDIUM 4.3 UPGRADE MITIGATE REXML is an XML toolkit for Ruby

References

← Back to latest CVEs