VDB
GHSA-v569-hp3g-36wr
GHSA-v569-hp3g-36wr
PUBLISHED
CVSS 7.5 HIGH
Rack has quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header
Risk Scores
CVSS 3.1
7.5
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| RubyGems | rack | 0, 2.2.23, 3.2.6 |
| chainguard | gitlab-cng-18.10 | 0 |
| chainguard | gitlab-rails-ce-fips-18.8 | 0 |
| wolfi | ruby3.4-rails-8.0 | 0, 0 |
| chainguard | logstash-9.3 | 0 |
| chainguard | gitlab-rails-ce-fips-18.10 | 0 |
| chainguard | gitlab-rails-ce-18.9 | 0 |
| chainguard | logstash-9.2 | 0 |
| chainguard | ruby3.2-rails-7.2 | 0, 0 |
| chainguard | ruby3.3-rack-2.2 | 0 |
| chainguard | logstash-8.19 | 0 |
| chainguard | gitlab-cng-18.8 | 0 |
| wolfi | ruby3.2-rack-2.2 | 0 |
| chainguard | gitlab-rails-ce-18.8 | 0 |
| chainguard | gitlab-cng-18.9 | 0 |
| chainguard | gitlab-rails-ce-18.1 | 0 |
| chainguard | gitlab-rails-ce-18.10 | 0 |
| chainguard | logstash-9.0 | 0 |
| wolfi | ruby3.3-rack-2.2 | 0 |
| wolfi | logstash-9.1 | 0 |
…and 19 more
Timeline
- Apr 2, 2026 CVE Published
- Apr 29, 2026 Security Advisory
- May 13, 2026 CVE Updated
References
- Rack has quadratic complexity in Rack::Utils.select_best_encoding via wildcard Accept-Encoding header advisory
- https://github.com/rack/rack/security/advisories/GHSA-v569-hp3g-36wr url
- https://nvd.nist.gov/vuln/detail/CVE-2026-34230 advisory
- https://github.com/rack/rack package
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/rack/CVE-2026-34230.yml url