CVE-2023-27539
MEDIUM5.3EPSS 0.36%Possible Denial of Service Vulnerability in Rack's header parsing
Published: 3/15/2023Modified: 4/28/2026
Description
There is a denial of service vulnerability in the header parsing component of Rack.
Affected packages (2)
- Debian/ruby-rackfrom 0, < 2.1.4-3+deb11u1
- RubyGems/rack>= 2.0.0, < 2.2.6.4
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
References (10)
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2023-27539
- ADVISORYhttps://security-tracker.debian.org/tracker/CVE-2023-27539
- PATCHhttps://github.com/rack/rack
- WEBhttps://discuss.rubyonrails.org/t/cve-2023-27539-possible-denial-of-service-vulnerability-in-racks-header-parsing/82466
- WEBhttps://github.com/rack/rack/commit/231ef369ad0b542575fb36c74fcfcfabcf6c530c
- WEBhttps://github.com/rack/rack/commit/ee7919ea04303717858be1c3f16b406adc6d8cff
- WEBhttps://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2023-27539.yml
- WEBhttps://lists.debian.org/debian-lts-announce/2023/04/msg00017.html
- WEBhttps://security.netapp.com/advisory/ntap-20231208-0016
- WEBhttps://www.debian.org/security/2023/dsa-5530