Multiple SAML libraries may allow authentication bypass via incorrect XML canonicalization and DOM traversal
Published Apr 17, 2019
9.8
CRITICALCVSS 3.0
EPSS 2.42%
Description
OmniAuth OmnitAuth-SAML 1.9.0 and earlier may incorrectly utilize the results of XML DOM traversal and canonicalization APIs in such a way that an attacker may be able to manipulate the SAML data without invalidating the cryptographic signature, allowing the attack to potentially bypass authentication to SAML service providers.
Affected products
-
- Version unspecifiedStatusaffectedConstraints<1.9.0
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| OmniAuth | OmnitAuth-SAML | n/a |
|
- ≤ 1.9.0
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:N/S:U/C:H/I:H/A:H
1 other source (GHSA) ▾
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
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
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 (16 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.42% (0.02415) | 83.55th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.28% (0.02276) | 80.77th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.41% (0.00414) | 59.51th | v4 (v2025.03.14) |
| Dec 17, 2024 | 1.79% (0.01786) | 87.76th | v3 (v2023.03.01) |
| Mar 26, 2024 | 1.06% (0.01056) | 83.72th | v3 (v2023.03.01) |
| Feb 8, 2024 | 0.53% (0.00526) | 76.28th | v3 (v2023.03.01) |
| Mar 24, 2023 | 0.53% (0.00526) | 73.42th | v3 (v2023.03.01) |
| Mar 7, 2023 | 0.42% (0.00416) | 70.05th | 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 | 0.89% (0.00885) | 10.50th | v2 (v2022.01.01) |
| Feb 3, 2022 | 0.62% (0.00624) | 17.80th | v1 |
| Jan 6, 2022 | 0.62% (0.00624) | 17.24th | v1 |
| Sep 1, 2021 | 0.62% (0.00624) | 45.04th | v1 |
| Apr 14, 2021 | 0.62% (0.00624) | 0.00th | v1 |
References (5)
- https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations x_refsource_MISCExploitTechnical DescriptionThird Party Advisory
- https://github.com/advisories/GHSA-94hm-8q65-rmxm Advisory
- https://github.com/rubysec/ruby-advisory-db/blob/master/gems/omniauth-saml/CVE-2017-11430.yml
- https://nvd.nist.gov/vuln/detail/CVE-2017-11430
- https://www.kb.cert.org/vuls/id/475445 x_refsource_MISCThird Party AdvisoryUS Government Resource
| Link | Providers | Tags |
|---|---|---|
| https://duo.com/blog/duo-finds-saml-vulnerabilities-affecting-multiple-implementations | x_refsource_MISCExploitTechnical DescriptionThird Party Advisory | |
| https://github.com/advisories/GHSA-94hm-8q65-rmxm | Advisory | |
| https://github.com/rubysec/ruby-advisory-db/blob/master/gems/omniauth-saml/CVE-2017-11430.yml | ||
| https://nvd.nist.gov/vuln/detail/CVE-2017-11430 | ||
| https://www.kb.cert.org/vuls/id/475445 | x_refsource_MISCThird Party AdvisoryUS Government Resource |
Change history (0)
No recorded changes yet.