dropbox samly vulnerabilities

Latest dropbox samly CVEs

Newest publication first

1. CVE-2026-53424 Missing one-time-use enforcement in Samly allows replay of SAML bearer assertions

   Published 2026-08-20

   Critical·CVSS 9.1 EPSS 0.60%

   Authentication Bypass by Capture-replay vulnerability in dropbox samly allows an attacker to authenticate as the subject of a captured SAML assertion by resubmitting it. Samly.Helper.decode_idp_auth_resp/3 in lib/samly/helper.ex calls esaml_sp:validate_assertion/2, whose default...

2. CVE-2026-53425 Missing InResponseTo validation in Samly allows acceptance of unsolicited SAML responses

   Published 2026-08-20

   High·CVSS 7.6 EPSS 0.22%

   Insufficient Verification of Data Authenticity vulnerability in dropbox samly allows an attacker to establish an authenticated session using a SAML response the service provider never requested. Samly.SPHandler.validate_authresp/3 in lib/samly/sp_handler.ex validates a SAML respo...

3. CVE-2024-25718 Samly access control vulnerability

   Published 2024-02-11

   Critical·CVSS 9.8 EPSS 0.66%

   In the Samly package before 1.4.0 for Elixir, Samly.State.Store.get_assertion/3 can return an expired session, which interferes with access control because Samly.AuthHandler uses a cached session and does not replace it, even after expiry.

Sources: CVE.org, NVD, CISA KEV, FIRST EPSS, OSV and public exploit-reference metadata. Product matching comes from the published CVE records. A proof-of-concept means public code exists; it is not evidence of exploitation.