In the uncurl_ws_accept function in uncurl.c in uncurl before 0.07, as used in Parsec before 140-3, insufficient Origin header validation (accepting an arbitrary substring match) for WebSocket API requests allows remote attackers to bypass intended access restrictions
Published Feb 5, 2018
8.8
HIGHCVSS 3.0
EPSS 2.39%
Description
In the uncurl_ws_accept function in uncurl.c in uncurl before 0.07, as used in Parsec before 140-3, insufficient Origin header validation (accepting an arbitrary substring match) for WebSocket API requests allows remote attackers to bypass intended access restrictions. In Parsec, this means full control over the victim's computer.
Affected products
No data.
Configuration 1
- < 0.07
Configuration 2
- < 140-3
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.
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H
AV:N/AC:M/Au:N/C:C/I:C/A:C
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
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.39% (0.02386) | 83.33th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.16% (0.02163) | 79.79th | v5 (v2026.06.15) |
| Jul 20, 2024 | 0.26% (0.00258) | 65.94th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.26% (0.00258) | 64.58th | v3 (v2023.03.01) |
| Jun 29, 2023 | 0.26% (0.00258) | 62.34th | v3 (v2023.03.01) |
| May 8, 2023 | 0.25% (0.00249) | 61.18th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.42% (0.00418) | 70.10th | 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) |
| Feb 3, 2022 | 1.11% (0.01110) | 29.52th | v1 |
| Jan 6, 2022 | 1.11% (0.01110) | 28.89th | v1 |
| Sep 1, 2021 | 1.11% (0.01110) | 66.78th | v1 |
| Apr 14, 2021 | 1.11% (0.01110) | 0.00th | v1 |
References (3)
- https://gist.github.com/Zenexer/ac7601c0e367d876353137e5099b18a7 x_refsource_MISC
- https://github.com/chrisd1100/uncurl/commit/448cd13e7b18c83855d706c564341ddd1e38e769 x_refsource_CONFIRMPatchThird Party Advisory
- https://github.com/chrisd1100/uncurl/releases/tag/0.07 x_refsource_CONFIRMThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| https://gist.github.com/Zenexer/ac7601c0e367d876353137e5099b18a7 | x_refsource_MISC | |
| https://github.com/chrisd1100/uncurl/commit/448cd13e7b18c83855d706c564341ddd1e38e769 | x_refsource_CONFIRMPatchThird Party Advisory | |
| https://github.com/chrisd1100/uncurl/releases/tag/0.07 | x_refsource_CONFIRMThird Party Advisory |
Change history (0)
No recorded changes yet.