Picketlink-federation: picketlink saml 2.0 auth bypass via missing assertions
CVSS score
8.1
EPSS probability
%0.2
Risk score
0.0
Published
2 mo ago
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Impact on My Inventory
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Vulnerability description
DayBreach CVE AI Research
CVE-2026-15556 has vendor, distribution, patch and security-source records on file. We can compare them and prepare an explanation linked to the evidence.
A flaw was found in Picketlink's SP signature validation; a SAML response containing zero assertion elements matching the signature check can allow an attacker to forge a SAML response and auth as any principal with any roles on the protected application.
IMPACT: Affected Products and Software
Affected Products
The following products are affected by CVE-2026-15556 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.
| ID | VENDOR | PRODUCT | ACTION |
|---|---|---|---|
| 1 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4.25 | View |
| 2 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 3 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 4 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 5 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 6 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 7 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 8 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 9 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 10 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 11 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 12 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7 | View |
| 13 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 14 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 15 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 16 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 17 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 18 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 19 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 20 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 21 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 22 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 23 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 8 | View |
| 24 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 25 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 26 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 27 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 28 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 29 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 30 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 31 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 32 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 33 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 34 | Red Hat | Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 9 | View |
| 35 | Red Hat | Red Hat JBoss Enterprise Application Platform 7 | View |
| 36 | Red Hat | Red Hat JBoss Enterprise Application Platform 8 | View |
| 37 | Red Hat | Red Hat JBoss Enterprise Application Platform Expansion Pack | View |
RED HAT CSAF/VEX: Product Impact Check
SCORING: CVSS from Multiple Sources
CVSS Scores
The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.
| SCORE | VERSION | SEVERITY | VECTOR | SOURCE |
|---|---|---|---|---|
| 8.1 | CVSS V31 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | NVD |
| 8.1 | CVSS V3_1 | HIGH | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N | CVE CNA |
Patch and Remediation Guide
Solution & Remediation Advisory
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Public exploit and active exploitation status
Verified exploit intelligence
No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.
Weakness Classification and Attack Patterns (CWE & CAPEC)
CWE - Common Weakness Enumeration
While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-15556 is associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-15556 weaknesses.
Attack Vector and Accessibility
Official Sources and Advisories
Similar Vulnerabilities
Get this vulnerability through the API
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