CVE-2022-31019: Vapor is a server-side Swift HTTP web framework

Q: How do I fix CVE-2022-31019?

vapor: upgrade to 4.61.1. Exact commands for each OS are on this page.

Q: Is CVE-2022-31019 being exploited?

CVE-2022-31019 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-2022-31019 affect?

CVE-2022-31019 affects vapor. Severity is high (CVSS 7.5). Vapor is a server-side Swift HTTP web framework. When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: `curl -d "array[_0][0][array][_0][0][array]$(for f in $(s

Q: How urgent is CVE-2022-31019?

Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

This week

HIGH 7.5REMOTEUPGRADE

CVE-2022-31019 is a high-severity flaw (CVSS 7.5) affecting vapor. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

Vapor is a server-side Swift HTTP web framework. When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: `curl -d "array[_0][0][array][_0][0][array]$(for f in $(seq 1100); do echo -n '[_0][0][array]'; done)[string][_0]=hello%20world" http://localhost:8080/foo`. The issue is unbounded, attacker controlled stack growth which will at some point lead to a stack overflow and

Why this priority

High severity
Public exploit reference
Remotely exploitable, no login, no user action

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	1.7% (top 23%)
CISA exploited list	No
Weakness	CWE-120, CWE-674
Published	2022-06-09
Last modified	2026-06-17

Publisher (CNA): GitHub, Inc. · Vendor: vapor

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

Am I affected?

Timeline

2022-06-09 13:15 UTCPublished CVE record published
2026-06-17 04:44 UTCUpdated Record last modified

vapor vapor UPGRADE

Affected: < 4.61.1

Fixed in: 4.61.1

Safe to downgrade to: no unaffected older release

1. Check installed version

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

2. UPGRADE to 4.61.1 (Debian / Ubuntu)

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

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade vapor

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-2022-31019?

vapor: upgrade to 4.61.1. Exact commands for each OS are on this page.

Is CVE-2022-31019 being exploited?

CVE-2022-31019 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-2022-31019 affect?

CVE-2022-31019 affects vapor. Severity is high (CVSS 7.5). Vapor is a server-side Swift HTTP web framework. When using automatic content decoding an attacker can craft a request body that can make the server crash with the following request: `curl -d "array[_0][0][array][_0][0][array]$(for f in $(s

How urgent is CVE-2022-31019?

Priority 55/100. High severity; Public exploit reference; Remotely exploitable, no login, no user action

Software pages

curl vulnerabilities · Swift vulnerabilities

Related CVEs

CVE-2024-21631 MEDIUM 6.5 UPGRADE Vapor is an HTTP web framework for Swift
CVE-2023-44386 MEDIUM 5.3 UPGRADE Vapor is an HTTP web framework for Swift
CVE-2022-31005 HIGH 7.5 UPGRADE Vapor is an HTTP web framework for Swift
CVE-2021-32742 HIGH 7.5 UPGRADE Vapor is a web framework for Swift
CVE-2021-21328 MEDIUM 5.3 UPGRADE Vapor is a web framework for Swift

References

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