CVE-2022-31019

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    CVE-2022-31019

    Published: 6 Jun 2022Last Modified: 12 Aug 2026

    Summary: DoS Vulnerability in URLEncodedFormDecoder in Vapor

    Details: 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 a process crash. This issue has been fixed in version 4.61.1.

    References: https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/31xxx/CVE-2022-31019.json, https://github.com/vapor/vapor/security/advisories/GHSA-qvxg-wjxc-r4gg, https://nvd.nist.gov/vuln/detail/CVE-2022-31019, https://github.com/vapor/vapor/commit/6c63226a4ab82ce53730eb1afb9ca63866fcf033

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 0
    Fixed -6c63226a4ab82ce53730eb1afb9ca63866fcf033

    Affected versions

    4.61.0

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2022-31019 | CVE-DB