CVE-2019-1010183: serde serde_yaml 0.6.0 to 0.8.3 is affected by: Uncontrolled Recursion

Routine

MEDIUM 6.5UPGRADE

CVE-2019-1010183 is a medium-severity flaw (CVSS 6.5) affecting serde-yaml. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

serde serde_yaml 0.6.0 to 0.8.3 is affected by: Uncontrolled Recursion. The impact is: Denial of service by aborting. The component is: from_* functions (all deserialization functions). The attack vector is: Parsing a malicious YAML file. The fixed version is: 0.8.4 and later.

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	None
User interaction	Required
EPSS exploit chance	1.1% (top 35%)
CISA exploited list	No
Weakness	CWE-674
Published	2019-07-25
Last modified	2026-06-17

Publisher (CNA): DWF · Vendor: serde-yaml project

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

Am I affected?

Timeline

2019-07-25 13:15 UTCPublished CVE record published
2026-06-17 02:09 UTCUpdated Record last modified

serde-yaml project serde-yaml UPGRADE

Affected: >= 0.6.0 and <= 0.8.3

Fixed in: newer than 0.8.3

Safe to downgrade to: a release before 0.6.0

1. Check installed version

apt-cache policy serde-yaml || rpm -q serde-yaml || serde-yaml --version

2. UPGRADE to newer than 0.8.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade serde-yaml

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade serde-yaml

Note

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

3. If no update is available yet, DOWNGRADE to a release before 0.6.0 (Debian / Ubuntu)

apt-cache madison serde-yaml sudo apt install serde-yaml=<VERSION_BEFORE_0.6.0> sudo apt-mark hold serde-yaml

3. If no update is available yet, DOWNGRADE (RHEL / Amazon Linux / Fedora)

dnf --showduplicates list serde-yaml sudo dnf downgrade serde-yaml-<VERSION_BEFORE_0.6.0> sudo dnf versionlock add serde-yaml

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-2019-1010183?

serde-yaml: upgrade to newer than 0.8.3. Exact commands for each OS are on this page.

Is CVE-2019-1010183 being exploited?

CVE-2019-1010183 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-2019-1010183 affect?

CVE-2019-1010183 affects serde-yaml. Severity is medium (CVSS 6.5). serde serde_yaml 0.6.0 to 0.8.3 is affected by: Uncontrolled Recursion. The impact is: Denial of service by aborting. The component is: from_* functions (all deserialization functions). The attack vector is: Parsing a malicious YAML file. T

How urgent is CVE-2019-1010183?

Priority 39/100. No elevated risk signals yet.

References

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