MEDIUM
CRLF Injection in pypiserver 1.2.5 and below allows attackers to set arbitrary HTTP headers and possibly conduct XSS attacks via a %0d%0a in a URI
Published Jan 25, 2019
6.1
MEDIUMCVSS 3.0
EPSS 3.80%
Description
CRLF Injection in pypiserver 1.2.5 and below allows attackers to set arbitrary HTTP headers and possibly conduct XSS attacks via a %0d%0a in a URI.
Affected products
No data.
- ≤ 1.2.5
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.
6.1 MEDIUM NVD
CVSS:3.0/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required None
User Interaction Required
Scope Changed
Confidentiality Impact Low
Integrity Impact Low
Availability Impact None
4.3 MEDIUM NVD
AV:N/AC:M/Au:N/C:N/I:P/A:N
Access Vector Network
Access Complexity Medium
Authentication None
Confidentiality Impact None
Integrity Impact Partial
Availability Impact None
This CVE is not in the KEV list.
No CISA SSVC assessment for this CVE yet.
3.80% 0.03802
Estimated probability of exploitation in the wild in the next 30 days (FIRST EPSS). As of Oct 2, 2026.
EPSS probability 0.03802
Score over time
2021–2026- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Percentile over time
- EPSS v1
- EPSS v2
- EPSS v3
- EPSS v4
- EPSS v5
Table of values (15 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 2, 2026 | 3.80% (0.03802) | 89.69th | v5 (v2026.06.15) |
| Jun 15, 2026 | 3.92% (0.03922) | 88.96th | v5 (v2026.06.15) |
| Mar 30, 2025 | 1.04% (0.01042) | 75.47th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.15% (0.05148) | 82.74th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.11% (0.00113) | 45.27th | v3 (v2023.03.01) |
| Jun 28, 2024 | 0.11% (0.00113) | 45.14th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.11% (0.00113) | 43.13th | v3 (v2023.03.01) |
| Mar 6, 2023 | 0.89% (0.00885) | 27.89th | v2 (v2022.01.01) |
| Sep 10, 2022 | 0.89% (0.00885) | 26.24th | v2 (v2022.01.01) |
| Apr 1, 2022 | 0.89% (0.00885) | 24.24th | v2 (v2022.01.01) |
| Feb 4, 2022 | 2.56% (0.02561) | 61.74th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.84% (0.01840) | 47.83th | v1 |
| Jan 6, 2022 | 1.84% (0.01840) | 47.32th | v1 |
| Sep 1, 2021 | 0.42% (0.00416) | 25.53th | v1 |
| Apr 14, 2021 | 0.42% (0.00416) | 0.00th | v1 |
Weaknesses (2)
References (5)
- https://github.com/advisories/GHSA-mh24-7wvg-v88g Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/pypiserver/PYSEC-2019-113.yaml
- https://github.com/pypiserver/pypiserver/commit/1375a67c55a9b8d4619df30d2a1c0b239d7357e6
- https://github.com/pypiserver/pypiserver/issues/237 x_refsource_MISCExploitThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2019-6802
Change history (0)
No recorded changes yet.
Sources
CVE.org / MITRE
Status PUBLISHED
Assigner mitre
Published Jan 25, 2019
Updated Aug 4, 2024
Reserved Jan 24, 2019
Link CVE-2019-6802
CISA Vulnrichment
GHSA-MH24-7WVG-V88G Updated n/a