Home/CVE/Vapor is an HTTP web framework for Swift. There is a denial of service vulnerability impacting all users of affected ver
CVE

CVE-2023-44386

Vapor is an HTTP web framework for Swift. There is a denial of service vulnerability impacting all users of affected ver

Vapor is an HTTP web framework for Swift. There is a denial of service vulnerability impacting all users of affected versions of Vapor. The HTTP1 error handler closed connections when HTTP parse errors occur instead of passing them on.

The issue is fixed as of Vapor release 4.84.2.

MEDIUM · CVSS 5.3 EPSS 0.00052
Schedule remediation
  • SSVC automatable: yes - attacks can be scripted at scale
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-231Improper Handling of Extra Values
CWE-617Reachable Assertion
CWE-696Incorrect Behavior Order
▤

Affected Products & Versions

1
vapor>= 4.83.2 and < 4.84.2
▤

Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
SwiftURL github.com/vapor/vapor MEDIUM fixed in 4.84.2
▣

Scoring & Timeline

5.3
MEDIUM · CVSS v3.1 · security-advisories@github.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD05 Oct 2023 · 06:15 PM
CVSS VectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
yes
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

3
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/vapor/vapor/commit/090464a654b03148b139a81f8f5ac63b0856f6f3Patch
https://github.com/vapor/vapor/releases/tag/4.84.2Release Notes
https://github.com/vapor/vapor/security/advisories/GHSA-3mwq-h3g6-ffhmThird Party Advisory
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