EUVD-2026-74933
GHSA-rj78-954w-xxp8
Severity by source
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:L/VA:N/SC:L/SI:L/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Network-reachable, no auth required, but victim must actively follow a crafted link; impact limited to enabling phishing redirect with no direct confidentiality or availability breach on Snipe-IT.
Primary rating from Vendor (VulnCheck).
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
1DescriptionCVE.org
Snipe-IT 8.5.0 through 8.6.3 contains an open redirect vulnerability in its SAML assertion-consumer endpoint (SamlController::acs, POST /saml/acs). The endpoint wrote the RelayState POST parameter directly into Laravel's url.intended session key with only CR/LF characters stripped, and LoginController later issued redirect()->intended(), which passes an absolute URL through to the Location header unchanged. An unauthenticated attacker who induces a user of a SAML-SSO-enabled instance to visit a crafted IdP-initiated SSO link can therefore cause the victim's browser to be redirected to an arbitrary absolute external URL immediately after a successful authentication, which the advisory notes facilitates credential-harvesting phishing. No account on the target instance and no compromise of the identity provider are required. Only deployments with SAML SSO enabled are affected. Fixed in 8.7.0 (commit d30b73d, PR #19386), which validates RelayState via a new Helper::sameOriginUrl check before storing it.
AnalysisAI
Open redirect in Snipe-IT 8.5.0-8.6.3 allows an unauthenticated attacker to silently forward an authenticated user's browser to an arbitrary external URL immediately after a successful SAML login. The SAML assertion-consumer endpoint (SamlController::acs, POST /saml/acs) stored the raw RelayState POST parameter directly into Laravel's url.intended session key with only CR/LF stripping applied, and the subsequent redirect()->intended() call emitted that value verbatim in the HTTP Location header. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | SAML SSO must be explicitly enabled on the target Snipe-IT instance by an administrator - it is not active by default. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | The CVSS 4.0 score of 5.3 (Medium) accurately reflects the bounded scope: the vulnerability is network-reachable with no privileges required, but passive victim interaction (UI:P) is mandatory and the direct impact is limited to redirection rather than code execution, data exfiltration, or authentication bypass against Snipe-IT itself. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Vendor-released patch: Snipe-IT 8.7.0, which introduces the Helper::sameOriginUrl validation to sanitize RelayState before it is stored in the Laravel session. … Detailed patch versions, workarounds, and compensating controls in full report. |
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