WEBrick:: HTTPRequest X-Forwarded-* allows arbitrary data
Published Nov 26, 2019
5.3
MEDIUMCVSS 3.1
EPSS 1.52%
Description
Various methods in WEBrick::HTTPRequest in Ruby 1.9.2 and 1.8.7 and earlier do not validate the X-Forwarded-For, X-Forwarded-Host and X-Forwarded-Server headers in requests, which might allow remote attackers to inject arbitrary text into log files or bypass intended address parsing via a crafted header.
Affected products
-
- Version 1.8.7 and earlierStatusaffectedConstraints-
- Version 1.9.2StatusaffectedConstraints-
- Version
No data.
Red Hat Enterprise Linux 4
ruby
Affected
Red Hat Enterprise Linux 5
ruby
Affected
Red Hat Enterprise Linux 6
ruby
Affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 4 | ruby | Affected | n/a |
| Red Hat Enterprise Linux 5 | ruby | Affected | n/a |
| Red Hat Enterprise Linux 6 | ruby | Affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:N/I:P/A:N
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 1, 2026.
Score over time
2022–2026- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (10 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.52% (0.01521) | 73.67th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.52% (0.01521) | 71.23th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.58% (0.00583) | 67.12th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.28% (0.00279) | 69.23th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.45% (0.00453) | 74.44th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.45% (0.00453) | 71.27th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.21% (0.01213) | 66.61th | v2 (v2022.01.01) |
| Feb 17, 2023 | 1.21% (0.01213) | 66.22th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.21% (0.01213) | 64.21th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.21% (0.01213) | 40.54th | v2 (v2022.01.01) |
References (8)
- https://access.redhat.com/security/cve/CVE-2011-3624 Vendor Advisory
- https://access.redhat.com/security/cve/cve-2011-3624 x_refsource_MISCThird Party Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=745636 Issue Tracking
- https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3624 x_refsource_MISCIssue TrackingThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2011-3624
- https://redmine.ruby-lang.org/issues/5418 x_refsource_MISC
- https://security-tracker.debian.org/tracker/CVE-2011-3624 x_refsource_MISCThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2011-3624
| Link | Providers | Tags |
|---|---|---|
| https://access.redhat.com/security/cve/CVE-2011-3624 | Vendor Advisory | |
| https://access.redhat.com/security/cve/cve-2011-3624 | x_refsource_MISCThird Party Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=745636 | Issue Tracking | |
| https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2011-3624 | x_refsource_MISCIssue TrackingThird Party Advisory | |
| https://nvd.nist.gov/vuln/detail/CVE-2011-3624 | ||
| https://redmine.ruby-lang.org/issues/5418 | x_refsource_MISC | |
| https://security-tracker.debian.org/tracker/CVE-2011-3624 | x_refsource_MISCThird Party Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2011-3624 |
Change history (0)
No recorded changes yet.