openSAML: Mishandling of comments in SAML content can lead to bypass of signature verification
Published Feb 27, 2018
8.1
HIGHCVSS 3.0
EPSS 2.11%
Description
Shibboleth XMLTooling-C before 1.6.4, as used in Shibboleth Service Provider before 2.6.1.4 on Windows and other products, mishandles digital signatures of user data, which allows remote attackers to obtain sensitive information or conduct impersonation attacks via crafted XML data. NOTE: this issue exists because of an incomplete fix for CVE-2018-0486.
Affected products
- Vendor n/a Product Shibboleth XMLTooling-C before 1.6.4 Defaultn/a
- Version Shibboleth XMLTooling-C before 1.6.4StatusaffectedConstraints-
- 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 | ||||||
|---|---|---|---|---|---|---|---|---|---|
| n/a | Shibboleth XMLTooling-C before 1.6.4 | n/a |
|
Configuration 1
- < 1.6.4
Configuration 2
- 7.0
- 8.0
- 9.0
Configuration 3
- ≥ 6.6.0 · ≤ 6.6.9
- ≥ 6.7.0 · < 6.7.2
No data.
Red Hat JBoss Enterprise Application Platform 6
opensaml-core
Not affected
Red Hat JBoss Enterprise Application Platform 7
opensaml-core
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat JBoss Enterprise Application Platform 6 | opensaml-core | Not affected | n/a |
| Red Hat JBoss Enterprise Application Platform 7 | opensaml-core | Not affected | n/a |
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:L/I:L/A:N
1 other source (Red Hat) ▾
CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
AV:N/AC:L/Au:N/C:P/I:P/A:N
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 v5
- EPSS v2
- EPSS v3
- EPSS v4
Percentile over time
- EPSS v1
- EPSS v5
- EPSS v2
- EPSS v3
- EPSS v4
Table of values (14 key points)
Flat stretches are collapsed; showing up to 120 newest points.
| Date | Score | Percentile | Model |
|---|---|---|---|
| Oct 1, 2026 | 2.11% (0.02107) | 81.08th | v5 (v2026.06.15) |
| Jun 15, 2026 | 2.17% (0.02165) | 79.81th | v5 (v2026.06.15) |
| Mar 17, 2025 | 0.41% (0.00407) | 59.03th | v4 (v2025.03.14) |
| Dec 12, 2024 | 0.52% (0.00524) | 77.68th | v3 (v2023.03.01) |
| Jun 2, 2024 | 0.52% (0.00524) | 76.88th | v3 (v2023.03.01) |
| Mar 2, 2024 | 0.61% (0.00609) | 78.09th | v3 (v2023.03.01) |
| Sep 23, 2023 | 0.61% (0.00609) | 76.09th | v3 (v2023.03.01) |
| Sep 3, 2023 | 0.67% (0.00667) | 77.16th | v3 (v2023.03.01) |
| Jul 21, 2023 | 1.15% (0.01150) | 82.91th | v3 (v2023.03.01) |
| Mar 7, 2023 | 2.35% (0.02355) | 88.07th | v3 (v2023.03.01) |
| Mar 6, 2023 | 1.32% (0.01319) | 71.27th | v2 (v2022.01.01) |
| Feb 4, 2022 | 1.32% (0.01319) | 44.98th | v2 (v2022.01.01) |
| Feb 3, 2022 | 1.82% (0.01823) | 35.21th | v5 (v2026.06.15) |
| Apr 14, 2021 | 1.82% (0.01823) | 0.00th | v1 |
References (10)
- http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-003.txt x_refsource_CONFIRMThird Party Advisory
- http://www.securityfocus.com/bid/103172 vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1040435 vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry
- https://access.redhat.com/security/cve/CVE-2018-0489 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=1549361 Issue Tracking
- https://lists.debian.org/debian-lts-announce/2018/02/msg00031.html mailing-listx_refsource_MLISTIssue Tracking
- https://nvd.nist.gov/vuln/detail/CVE-2018-0489
- https://shibboleth.net/community/advisories/secadv_20180227.txt x_refsource_CONFIRMPatchVendor Advisory
- https://www.cve.org/CVERecord?id=CVE-2018-0489
- https://www.debian.org/security/2018/dsa-4126 vendor-advisoryx_refsource_DEBIANThird Party Advisory
| Link | Providers | Tags |
|---|---|---|
| http://www.arubanetworks.com/assets/alert/ARUBA-PSA-2018-003.txt | x_refsource_CONFIRMThird Party Advisory | |
| http://www.securityfocus.com/bid/103172 | vdb-entryx_refsource_BIDThird Party AdvisoryVDB Entry | |
| http://www.securitytracker.com/id/1040435 | vdb-entryx_refsource_SECTRACKThird Party AdvisoryVDB Entry | |
| https://access.redhat.com/security/cve/CVE-2018-0489 | Vendor Advisory | |
| https://bugzilla.redhat.com/show_bug.cgi?id=1549361 | Issue Tracking | |
| https://lists.debian.org/debian-lts-announce/2018/02/msg00031.html | mailing-listx_refsource_MLISTIssue Tracking | |
| https://nvd.nist.gov/vuln/detail/CVE-2018-0489 | ||
| https://shibboleth.net/community/advisories/secadv_20180227.txt | x_refsource_CONFIRMPatchVendor Advisory | |
| https://www.cve.org/CVERecord?id=CVE-2018-0489 | ||
| https://www.debian.org/security/2018/dsa-4126 | vendor-advisoryx_refsource_DEBIANThird Party Advisory |
Change history (0)
No recorded changes yet.