CVE-2026-45056 (GCVE-0-2026-45056)
Vulnerability from cvelistv5
Published
2026-09-11 21:13
Modified
2026-09-14 18:17
CWE
  • CWE-290 - Authentication Bypass by Spoofing
Summary
matrix-sdk-crypto is a no-network-IO implementation of a state machine that handles end-to-end encryption for Matrix clients. Starting in version 0.12.0 and prior to version 0.17.0, the matrix-sdk-crypto crate was missing a check for the user ID when decrypting an Olm-encrypted event containing the `sender_device_keys` property. This could be exploited to forge an encrypted to-device event, but only if the attacker colludes with the homeserver operator. This issue is fixed in matrix-sdk-crypto 0.17.0. There are no known workarounds for the issue.
Impacted products
Vendor Product Version
matrix-org matrix-rust-sdk Version: >= 0.12.0, < 0.16.1
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Show details on NVD website


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