CVE-2026-104891 PUBLISHED

mppx-condition-gate: Free-access path grants on a self-declared wallet without proving control

Assigner: GitHub_M
Reserved: 02.10.2026 Published: 05.10.2026 Updated: 05.10.2026

mppx-condition-gate provides conditional free-access wrappers for mppx payment methods. Prior to @insumermodel/mppx-condition-gate 3.0.0 and @insumermodel/mppx-token-gate 1.0.4, the packages read a wallet address from the client-supplied credential.source, checked whether that public address met configured on-chain conditions, and returned a successful free-access receipt without invoking the wrapped payment verifier or proving that the caller controlled the wallet. An unauthenticated attacker could name any qualifying wallet and obtain content that should require payment, and cached grants could be reused for the configured cache lifetime. The corrected packages prevent free-access authorization unless payer control has been established. These issues are fixed in @insumermodel/mppx-condition-gate 3.0.0 and @insumermodel/mppx-token-gate 1.0.4.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS Score: 7.5

Product Status

Vendor douglasborthwick-crypto
Product mppx-condition-gate
Versions
  • Version < b1d9935a57ba6d32da49eead1bfb459ad0cd55ab is affected
Vendor @insumermodel
Product mppx-condition-gate
Versions
  • Version < 3.0.0 is affected
Vendor @insumermodel
Product mppx-token-gate
Versions
  • Version < 1.0.4 is affected

References

Problem Types

  • CWE-290: Authentication Bypass by Spoofing CWE
  • CWE-863: Incorrect Authorization CWE