CVE-2023-0662 - CVE House
Back to Database
Status published High CVE-2023-0662

DoS vulnerability when parsing multipart request body

Vulnerability Description

In PHP 8.0.X before 8.0.28, 8.1.X before 8.1.16 and 8.2.X before 8.2.3, excessive number of parts in HTTP form upload can cause high resource consumption and excessive number of log entries. This can cause denial of service on the affected server by exhausting CPU resources or disk space.

Impact Analysis

Refer to official advisory for detailed impact metrics.

Remediation

Ensure systems are updated to the latest vendor-supplied patch levels.

THREAT MONITOR

Am I Vulnerable?

Launch our assessment wizard to check if your infrastructure is exposed to • CVE-2023-0662

Credits & Attribution

The following person or organization is credited with identifying this vulnerability, as recorded in the NVD database:

  • Jakob Ackermann

References

More from PHP Group

View All →
CVE-2025-6491
NULL Pointer Dereference in PHP SOAP Extension via Large XML Namespace Prefix
Medium 5.9
CVE-2025-1861
Stream HTTP wrapper truncates redirect location to 1024 bytes
Medium 6.3
CVE-2025-1736
Stream HTTP wrapper header check might omit basic auth header
Medium 6.3
CVE-2025-1735
pgsql extension does not check for errors during escaping
Medium 5.9
CVE-2025-1734
Streams HTTP wrapper does not fail for headers with invalid name and no colon
Medium 6.3

Affected Vendor

Affected Software

PHP
Vulnerable Versions:
8.0.x, 8.1.x, 8.2.x

Timeline

Official Publish: February 16th, 2023
Last Modified: March 18th, 2025
Added to House: July 22nd, 2026

CVSS Vectors

V3: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Weaknesses (CWE)

CWE-400

MITRE ATT&CK TTPs

T1499 Endpoint Denial of Service
Impact
T1498 Network Denial of Service
Impact