CVE-2018-16471
There is a possible XSS vulnerability in Rack before 2.0.6 and 1.6.11. Carefully crafted requests can impact the data returned by the `scheme` method on `Rack::Request`. Applications that expect the
02 Description
There is a possible XSS vulnerability in Rack before 2.0.6 and 1.6.11. Carefully crafted requests can impact the data returned by the `scheme` method on `Rack::Request`. Applications that expect the
03 Exploitation and scoring
- Exploitation
- Not assessed. CISA has not published an exploitation assessment for this record, and it is not in the KEV catalog. That is an absence of assessment, not a finding of no risk.
- SSVC decision
- Not assessed by CISA
- EPSS probability
- 1.89% probability of exploitation activity in the next 30 days.
- EPSS percentile
- Equal to or higher than the score of 79.1% of scored records. A rank, not a probability.
- NVD base score
- 6.1 (CVSS v3.x), scored by the NVD independently of the CNA.
- NVD CVSS vector
- CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
- NVD analysis status
- Modified. NVD last modified this record on 2026-06-17.
- Red Hat severity
- Moderate. Red Hat's rating for its own products, not a CVSS rating.
Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.
04 Metadata
- Published
- 2018-11-13 23:00Z7 YR AGO
- Last updated
- 2024-08-05 10:24Z2 YR AGO
- Reserved
- 2018-09-04
- Assigning CNA
- hackerone
- Record state
- PUBLISHED
- Severity
- Not rated by the issuing CNA
- CNA CVSS vector
- Not published by the issuing CNA
- Weaknesses
- CWE-79Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')Base
- Data version
- 5.1
- Document digest
- db47e20deb6805a1a23722942a4771a797dd61bc41b49e87d011a6e97bd36754
05 Affected products
06 References
- groups.google.comhttps://groups.google.com/forum/#%21topic/rubyonrails-security/GKsAFT924Ag
- lists.debian.org[debian-lts-announce] 20181121 [SECURITY] [DLA 1585-1] ruby-rack security updatehttps://lists.debian.org/debian-lts-announce/2018/11/msg00022.html
- lists.opensuse.orgopenSUSE-SU-2019:1553http://lists.opensuse.org/opensuse-security-announce/2019-06/msg00032.html
- usn.ubuntu.comUSN-4089-1https://usn.ubuntu.com/4089-1/
- lists.opensuse.orgopenSUSE-SU-2020:0214http://lists.opensuse.org/opensuse-security-announce/2020-02/msg00016.html
07 Fixed in
Debian 12
- ruby-rack Fixed in 1.6.4-6
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 13
- ruby-rack Fixed in 1.6.4-6
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Debian 14
- ruby-rack Fixed in 1.6.4-6
Source: Debian Security Tracker, the Debian security team. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 16.04 LTS
- ruby-rack Fixed in 1.6.4-3ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
Ubuntu 18.04 LTS
- ruby-rack Fixed in 1.6.4-4ubuntu0.1
Source: Ubuntu, Canonical Ltd. Licensed under CC BY-SA 4.0. Received through OSV.dev. Reformatted by exploit.cc.
A release or ecosystem missing from this list has no record here. It may be unaffected or not covered by the source. Source notices and licences.