lib/thin/connection.rb in Thin web server before 1.2.4 relies on the X-Forwarded-For header to determine the IP address of the client, which allows remote attackers to spoof the IP address and hide activities via a modified X-Forwarded-For header
Published Sep 22, 2009
7.5
HIGHCVSS 2.0
EPSS 1.38%
Description
lib/thin/connection.rb in Thin web server before 1.2.4 relies on the X-Forwarded-For header to determine the IP address of the client, which allows remote attackers to spoof the IP address and hide activities via a modified X-Forwarded-For header.
Affected products
No data.
- ≤ 1.2.2
- 0.4.0
- 0.4.1
- 0.5.0
- 0.5.1
- 0.5.2
- 0.5.3
- 0.5.4
- 0.6.0
- 0.6.3
- 0.6.4
- 0.7.0
- 0.7.1
- 0.8.0
- 0.8.1
- 0.8.2
- 1.0.0
- 1.1.0
- 1.1.1
- 1.2.0
- 1.2.1
No data.
No Red Hat product state for this CVE.
No package ranges for this CVE.
Remediation
No remediation recorded yet.
Metrics
No CVSS v4.0 score for this CVE.
No CVSS v3.1 score for this CVE.
No CVSS v3.0 score for this CVE.
AV:N/AC:L/Au:N/C:P/I:P/A:P
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 (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 1.38% (0.01382) | 71.14th | v5 (v2026.06.15) |
| Jun 15, 2026 | 1.38% (0.01382) | 68.49th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.48% (0.00478) | 62.95th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.67% (0.00666) | 80.39th | v3 (v2023.03.01) |
| May 24, 2024 | 0.46% (0.00464) | 75.42th | v3 (v2023.03.01) |
| May 10, 2024 | 0.39% (0.00390) | 73.15th | v3 (v2023.03.01) |
| Apr 25, 2024 | 0.33% (0.00330) | 70.66th | v3 (v2023.03.01) |
| Mar 15, 2024 | 0.28% (0.00277) | 67.48th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.25% (0.00253) | 64.21th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.67% (0.00666) | 76.55th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.14% (0.01136) | 59.45th | v2 (v2022.01.01) |
| Oct 18, 2022 | 1.14% (0.01136) | 58.28th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.14% (0.01136) | 56.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.14% (0.01136) | 34.23th | v2 (v2022.01.01) |
References (6)
- http://github.com/macournoyer/thin/blob/master/CHANGELOG x_refsource_CONFIRM
- http://github.com/macournoyer/thin/commit/7bd027914c5ffd36bb408ef47dc749de3b6e063a x_refsource_CONFIRMPatch
- http://www.openwall.com/lists/oss-security/2009/09/12/1 mailing-listx_refsource_MLIST
- https://github.com/advisories/GHSA-j24p-r6wx-r79w Advisory
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/thin/CVE-2009-3287.yml
- https://nvd.nist.gov/vuln/detail/CVE-2009-3287
| Link | Providers | Tags |
|---|---|---|
| http://github.com/macournoyer/thin/blob/master/CHANGELOG | x_refsource_CONFIRM | |
| http://github.com/macournoyer/thin/commit/7bd027914c5ffd36bb408ef47dc749de3b6e063a | x_refsource_CONFIRMPatch | |
| http://www.openwall.com/lists/oss-security/2009/09/12/1 | mailing-listx_refsource_MLIST | |
| https://github.com/advisories/GHSA-j24p-r6wx-r79w | Advisory | |
| https://github.com/rubysec/ruby-advisory-db/blob/master/gems/thin/CVE-2009-3287.yml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2009-3287 |
Change history (0)
No recorded changes yet.