Back to Database
Status published
Unknown
CVE-2023-27539
There is a denial of service vulnerability in the header...
Vulnerability Description
There is a denial of service vulnerability in the header parsing component of Rack.
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-2023-27539
Credits & Attribution
No credits recorded in the NVD database.
References
- https://discuss.rubyonrails.org/t/cve-2023-27539-possible-denial-of-service-vulnerability-in-racks-header-parsing/82466
- https://github.com/advisories/GHSA-c6qg-cjj8-47qp
- https://github.com/rack/rack/commit/231ef369ad0b542575fb36c74fcfcfabcf6c530c
- https://github.com/rack/rack/commit/ee7919ea04303717858be1c3f16b406adc6d8cff
- https://lists.debian.org/debian-lts-announce/2023/04/msg00017.html
- https://security.netapp.com/advisory/ntap-20231208-0016/
- https://www.debian.org/security/2023/dsa-5530
More from Rails
View All →CVE-2025-24293
# Active Storage allowed transformation methods potentially unsafe
Active Storage attempts...
Critical
9.2
CVE-2023-38037
ActiveSupport::EncryptedFile writes contents that will be encrypted to a
temporary file....
Medium
5.5
CVE-2023-28362
The redirect_to method in Rails allows provided values to contain...
Unknown
0
CVE-2023-28120
There is a vulnerability in ActiveSupport if the new bytesplice...
Unknown
0
CVE-2023-27531
There is a deserialization of untrusted data vulnerability in the...
Unknown
0
Affected Vendor
Rails
View all reports →Affected Software
Rack
Vulnerable Versions:
2.2.6.4, 3.0.6.1
Timeline
Official Publish:
January 9th, 2025
Last Modified:
January 9th, 2025
Added to House:
July 22nd, 2026
CVSS Vectors
No vector data available
Weaknesses (CWE)
No CWE data available
MITRE ATT&CK TTPs
No associated TTPs found for this vulnerability.