Vulnerability Monitor

The vendors, products, and vulnerabilities you care about

CVE-2023-27522

HTTP Response Smuggling vulnerability in Apache HTTP Server via mod_proxy_uwsgi. This issue affects Apache HTTP Server: from 2.4.30 through 2.4.55. Special characters in the origin response header can truncate/split the response forwarded to the client.

Security Impact Summary

This vulnerability carries a HIGH severity rating with a CVSS v3.1 score of 7.5, indicating it can be exploited remotely over the network with relatively low complexity without requiring user interaction and does not require pre-existing privileges . The vulnerability impacts integrity (unauthorized modifications), for affected systems. Impacting 3 products from apache, from debian, from unbit organizations running these solutions should prioritize assessment and patching.

Historical Context

Reported in 2023, this vulnerability emerged during an era marked by increased sophistication in supply chain attacks, cloud infrastructure vulnerabilities, and software-as-a-service (SaaS) security challenges. Security practices during this period emphasized zero-trust architectures, container security, and API protection.

Published

2023-03-07T16:15:09.613

Last Modified

2025-05-01T15:34:19.177

Status

Analyzed

Source

[email protected]

Severity

CVSSv3.1: 7.5 (HIGH)

Weaknesses

Type: Secondary
CWE-444

Affected Vendors & Products

Type	Vendor	Product	Version/Range	Vulnerable?
Application	apache	http_server	< 2.4.56	Yes
Operating System	debian	debian_linux	10.0	Yes
Application	unbit	uwsgi	< 2.0.22	Yes

References

https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory ([email protected])
https://lists.debian.org/debian-lts-announce/2023/04/msg00028.html Third Party Advisory ([email protected])
https://security.gentoo.org/glsa/202309-01 Third Party Advisory ([email protected])
https://httpd.apache.org/security/vulnerabilities_24.html Vendor Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://lists.debian.org/debian-lts-announce/2023/04/msg00028.html Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)
https://security.gentoo.org/glsa/202309-01 Third Party Advisory (af854a3a-2127-422b-91ae-364da2661108)

How SecUtils Interprets This CVE

SecUtils normalizes and enriches National Vulnerability Database (NVD) records by standardizing vendor and product identifiers, aggregating vulnerability metadata from both NVD and MITRE sources, and providing structured context for security teams. For apache's affected products, we extract Common Platform Enumeration (CPE) data, Common Weakness Enumeration (CWE) classifications, CVSS severity metrics, and reference data to enable rapid vulnerability prioritization and asset correlation. This record contains no exploit code, proof-of-concept instructions, or attack methodologies—only defensive intelligence necessary for patch management, risk assessment, and security operations.