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TI-2022-13064 Aliases CVE-2022-31019GHSA-qvxg-wjxc-r4gg

DoS Vulnerability in URLEncodedFormDecoder in Vapor

Priority HIGH 72CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-120 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.01663 76th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix Fixed vapor (vapor): 4.61.1github.com/vapor/vapor (SwiftURL): 4.61.1

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
vaporvaporbefore 4.61.14.61.1Patch availableCNA
—github.com/vapor/vapor (SwiftURL)before 4.61.14.61.1Patch availableGHSA-qvxg-wjxc-r4gg
  • vapor Vendorvapor Affected before 4.61.1 Fixed in 4.61.1 Patch available CNA
  • github.com/vapor/vapor (SwiftURL) Vendor— Affected before 4.61.1 Fixed in 4.61.1 Patch available GHSA-qvxg-wjxc-r4gg

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:vapor:vapor:*:*:*:*:*:*:*:*before 4.61.1Vulnerablevapor
  • cpe:2.3:a:vapor:vapor:*:*:*:*:*:*:*:* Versions before 4.61.1 Vulnerable ·vapor

Remediation

  • Fix · CNA vapor (vapor) Fixed in 4.61.1
  • Fix · GHSA-qvxg-wjxc-r4gg github.com/vapor/vapor (SwiftURL) Fixed in 4.61.1 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2022-31019
  2. 2026-10-03 Alias added: GHSA-qvxg-wjxc-r4gg

References

Exploit 1

Advisory 2

Other 1

  • TI-2022-13051 Integer Overflow in Vapor's HTTP Range Request CVSS 3.1HIGH 7.5
  • TI-2024-14356 Integer overflow in URI leading to potential host spoofing CVSS 3.1MEDIUM 6.5
  • TI-2023-23892 Incorrect request error handling triggers server crash in Vapor CVSS 3.1MEDIUM 5.3

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences