python-pysaml2: Access restriction bypass
Published Jan 2, 2018
9.2
CRITICALCVSS 4.0
EPSS 2.54%
Description
pysaml2 version 4.4.0 and older accept any password when run with python optimizations enabled. This allows attackers to log in as any user without knowing their password.
Affected products
No data.
Configuration 1
- ≤ 4.4.0
Configuration 2
- 8.0
- 9.0
No data.
Red Hat Enterprise Linux OpenStack Platform 7 (Kilo)
python-pysaml2
Will not fix
Red Hat OpenStack Platform 10 (Newton)
python-pysaml2
Will not fix
Red Hat OpenStack Platform 11 (Ocata)
python-pysaml2
Will not fix
Red Hat OpenStack Platform 12 (Pike)
python-pysaml2
Will not fix
Red Hat OpenStack Platform 8 (Liberty)
python-pysaml2
Will not fix
Red Hat OpenStack Platform 9 (Mitaka)
python-pysaml2
Will not fix
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux OpenStack Platform 7 (Kilo) | python-pysaml2 | Will not fix | n/a |
| Red Hat OpenStack Platform 10 (Newton) | python-pysaml2 | Will not fix | n/a |
| Red Hat OpenStack Platform 11 (Ocata) | python-pysaml2 | Will not fix | n/a |
| Red Hat OpenStack Platform 12 (Pike) | python-pysaml2 | Will not fix | n/a |
| Red Hat OpenStack Platform 8 (Liberty) | python-pysaml2 | Will not fix | n/a |
| Red Hat OpenStack Platform 9 (Mitaka) | python-pysaml2 | Will not fix | n/a |
No package ranges for this CVE.
Remediation
Red Hat statement
Red Hat Product Security has rated this issue as having security impact of Low for: * Red Hat Enterprise Linux OpenStack Platform 7.0 (Kilo) for RHEL 7 * Red Hat OpenStack Platform 8.0 (Liberty) * Red Hat OpenStack Platform 9.0 (Mitaka) * Red Hat OpenStack Platform 10.0 (Newton) * Red Hat OpenStack Platform 11.0 (Ocata) * Red Hat OpenStack Platform 12.0 (Pike) Although the affected code is present in shipped packages, python-pysaml2 is included only as a dependency of other packages. The affected code cannot be reached in any supported configuration of Red Hat OpenStack Platform. This issue is not currently planned to be addressed in future updates. For additional information, refer to the Issue Severity Classification: https://access.redhat.com/security/updates/classification/.
Metrics
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
AV:N/AC:M/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
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 (20 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.54% (0.02541) | 84.42th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.47% (0.02469) | 82.36th | v5 (v2026.06.15) |
| Mar 30, 2025 | 2.70% (0.02702) | 84.59th | v4 (v2025.03.14) |
| Mar 29, 2025 | 5.44% (0.05437) | 83.23th | v4 (v2025.03.14) |
| Mar 17, 2025 | 2.70% (0.02702) | 84.90th | v4 (v2025.03.14) |
| Jul 20, 2024 | 0.23% (0.00232) | 61.73th | v3 (v2023.03.01) |
| Oct 18, 2023 | 0.23% (0.00232) | 61.05th | v3 (v2023.03.01) |
| Jul 29, 2023 | 0.30% (0.00297) | 65.27th | v3 (v2023.03.01) |
| Jul 5, 2023 | 0.33% (0.00325) | 66.66th | v3 (v2023.03.01) |
| May 26, 2023 | 0.43% (0.00429) | 70.74th | v3 (v2023.03.01) |
| May 8, 2023 | 0.38% (0.00378) | 68.78th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.69% (0.00694) | 77.09th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.02% (0.01018) | 40.69th | v2 (v2022.01.01) |
| Sep 10, 2022 | 1.02% (0.01018) | 38.88th | v2 (v2022.01.01) |
| Apr 1, 2022 | 1.02% (0.01018) | 36.86th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.02% (0.01018) | 19.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.04% (0.01040) | 28.32th | v1 |
| Jan 6, 2022 | 1.04% (0.01040) | 27.69th | v1 |
| Sep 1, 2021 | 1.04% (0.01040) | 64.49th | v1 |
| Apr 14, 2021 | 1.04% (0.01040) | 0.00th | v1 |
References (12)
- https://access.redhat.com/security/cve/CVE-2017-1000433 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1516162 Issue Tracking
- https://github.com/IdentityPython/pysaml2/commit/6312a41e037954850867f29d329e5007df1424a5
- https://github.com/IdentityPython/pysaml2/pull/454
- https://github.com/advisories/GHSA-924m-4pmx-c67h Advisory
- https://github.com/pypa/advisory-database/tree/main/vulns/pysaml2/PYSEC-2018-48.yaml
- https://github.com/rohe/pysaml2/issues/451 x_refsource_CONFIRMPatchThird Party AdvisoryVDB Entry
- https://lists.debian.org/debian-lts-announce/2018/07/msg00000.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://lists.debian.org/debian-lts-announce/2021/02/msg00038.html mailing-listx_refsource_MLISTMailing ListThird Party Advisory
- https://nvd.nist.gov/vuln/detail/CVE-2017-1000433
- https://security.gentoo.org/glsa/201801-11 vendor-advisoryx_refsource_GENTOOIssue TrackingThird Party Advisory
- https://www.cve.org/CVERecord?id=CVE-2017-1000433
Change history (0)
No recorded changes yet.