CVE-2022-40151: Those using Xstream to seralize XML data may be vulnerable to Denial of Service attacks (DOS)

Q: How do I fix CVE-2022-40151?

xstream: upgrade to 1.4.20. Exact commands for each OS are on this page.

Q: Is CVE-2022-40151 being exploited?

CVE-2022-40151 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-2022-40151 affect?

CVE-2022-40151 affects xstream. Severity is medium (CVSS 6.5). Those using Xstream to seralize XML data may be vulnerable to Denial of Service attacks (DOS). If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by stackoverflow. This effect may

Q: How urgent is CVE-2022-40151?

Priority 48/100. Public exploit reference

This month

MEDIUM 6.5UPGRADE

CVE-2022-40151 is a medium-severity flaw (CVSS 6.5) affecting xstream. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Those using Xstream to seralize XML data may be vulnerable to Denial of Service attacks (DOS). If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by stackoverflow. This effect may support a denial of service attack.

Why this priority

Public exploit reference

A fixed release or distro patch exists.

Risk facts

CVSS score	6.5 (Medium)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	Low
User interaction	None
EPSS exploit chance	2.2% (top 17%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2022-09-16
Last modified	2026-06-17

Publisher (CNA): Google Inc. · Vendor: xstream

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

Am I affected?

Timeline

2022-09-16 10:15 UTCPublished CVE record published
2026-06-17 05:01 UTCUpdated Record last modified

xstream xstream UPGRADE

Affected: < 1.4.20

Fixed in: 1.4.20

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.4.20 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade xstream

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-2022-40151?

xstream: upgrade to 1.4.20. Exact commands for each OS are on this page.

Is CVE-2022-40151 being exploited?

CVE-2022-40151 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-2022-40151 affect?

CVE-2022-40151 affects xstream. Severity is medium (CVSS 6.5). Those using Xstream to seralize XML data may be vulnerable to Denial of Service attacks (DOS). If the parser is running on user supplied input, an attacker may supply content that causes the parser to crash by stackoverflow. This effect may

How urgent is CVE-2022-40151?

Priority 48/100. Public exploit reference

Related CVEs

CVE-2013-7285 CRITICAL 9.8 DOWNGRADE DOWNGRADE Xstream API versions up to 1.4.6 and version 1.4.10, if the security framework has not been initialized, may a
CVE-2021-39153 HIGH 8.5 UPGRADE MITIGATE XStream is a simple library to serialize objects to XML and back again
CVE-2021-39152 HIGH 8.5 UPGRADE MITIGATE XStream is a simple library to serialize objects to XML and back again
CVE-2021-39151 HIGH 8.5 UPGRADE MITIGATE XStream is a simple library to serialize objects to XML and back again
CVE-2021-39150 HIGH 8.5 UPGRADE MITIGATE XStream is a simple library to serialize objects to XML and back again

References

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