Description
Snipe-IT before 8.5.0 contains a SAML assertion replay vulnerability that allows attackers to reuse captured assertions by exploiting a non-atomic nonce check in the SAML acs handler. Attackers can send concurrent POST requests to /saml/acs with one captured assertion to obtain multiple authenticated victim sessions that evade IdP-driven revocation.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| grokability | snipe-it | < 8.5.0 | 8.5.0 |
Advisories 1
- WID-SEC-2026-3829 Snipe-IT: Mehrere Schwachstellen BSI CERT-Bund (WID) · Oct 25, 2026
References
- GitHub Security Advisory (GHSA-w49g-f2jc-qxhg) vendor-advisory
- VulnCheck Advisory: Snipe-IT before 8.5.0 SAML Assertion Replay via Race Condition third-party-advisory