CVE-2022-38752: Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS)

Q: How do I fix CVE-2022-38752?

snakeyaml: upgrade to 1.32. Exact commands for each OS are on this page.

Q: Is CVE-2022-38752 being exploited?

CVE-2022-38752 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-2022-38752 affect?

CVE-2022-38752 affects snakeyaml. Severity is medium (CVSS 6.5). Using snakeYAML to parse untrusted YAML files 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 stack-overflow.

Q: How urgent is CVE-2022-38752?

Priority 44/100. No elevated risk signals yet.

This month

MEDIUM 6.5UPGRADE

CVE-2022-38752 is a medium-severity flaw (CVSS 6.5) affecting snakeyaml. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Using snakeYAML to parse untrusted YAML files 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 stack-overflow.

Why this priority

No elevated risk signals yet

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	2.5% (top 15%)
CISA exploited list	No
Weakness	CWE-121, CWE-787
Published	2022-09-05
Last modified	2026-06-17

Publisher (CNA): Google Inc. · Vendor: snakeyaml project

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

Am I affected?

Timeline

2022-09-05 10:15 UTCPublished CVE record published
2026-06-17 04:57 UTCUpdated Record last modified

snakeyaml project snakeyaml UPGRADE

Affected: < 1.32

Fixed in: 1.32

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 1.32 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade snakeyaml

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-2022-38752?

snakeyaml: upgrade to 1.32. Exact commands for each OS are on this page.

Is CVE-2022-38752 being exploited?

CVE-2022-38752 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-2022-38752 affect?

CVE-2022-38752 affects snakeyaml. Severity is medium (CVSS 6.5). Using snakeYAML to parse untrusted YAML files 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 stack-overflow.

How urgent is CVE-2022-38752?

Priority 44/100. No elevated risk signals yet.

Related CVEs

CVE-2022-41854 MEDIUM 5.8 UPGRADE MITIGATE Those using Snakeyaml to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS)
CVE-2022-38751 MEDIUM 6.5 UPGRADE MITIGATE Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS)
CVE-2022-38750 MEDIUM 6.5 UPGRADE MITIGATE Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS)
CVE-2022-38749 MEDIUM 6.5 UPGRADE MITIGATE Using snakeYAML to parse untrusted YAML files may be vulnerable to Denial of Service attacks (DOS)
CVE-2022-25857 HIGH 7.5 UPGRADE MITIGATE The package org.yaml:snakeyaml from 0 and before 1.31 are vulnerable to Denial of Service (DoS) due missing to

References

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