CVE-2026-45057

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Source
https://cve.org/CVERecord?id=CVE-2026-45057
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45057.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-45057
Aliases
Published
2026-09-11T21:12:17Z
Modified
2026-09-12T11:46:07Z
Severity
  • 4.9 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
matrix-sdk-ui: Incomplete edit validation
Details

matrix-sdk-ui provides GUI-centric utilities on top of matrix-rust-sdk. The message edit validation logic in the matrix-sdk-ui crate prior to 0.17.0 is missing a check: when replacing an encrypted event, the replacement event itself is not required to be encrypted. This enables a malicious homeserver administrators (or actors with equivalent power) to impersonate or spoof messages as if they were sent by a victim user. matrix-sdk-ui 0.17.0 fixes the message edit validation logic to align with the algorithm for replacement events[^1] described in the Matrix specification. No known workarounds are available.

Database specific 
{
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
        "CWE-345"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/45xxx/CVE-2026-45057.json"
}
References

Affected packages

Git / github.com/matrix-org/matrix-rust-sdk

Affected ranges

Type
GIT
Repo
https://github.com/matrix-org/matrix-rust-sdk
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
ed148665d211ae97d4672437561ddeccf8556f0d
Database specific
Show details 
{
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "0.16.1"
        }
    ],
    "source": "AFFECTED_FIELD"
}

Affected versions

0.*
0.1.0
0.7.0
matrix-qrcode-0.*
matrix-qrcode-0.2.0
matrix-sdk-0.*
matrix-sdk-0.10.0
matrix-sdk-0.11.0
matrix-sdk-0.12.0
matrix-sdk-0.13.0
matrix-sdk-0.16.0
matrix-sdk-0.4.0
matrix-sdk-0.4.1
matrix-sdk-0.8.0
matrix-sdk-0.9.0
matrix-sdk-base-0.*
matrix-sdk-base-0.10.0
matrix-sdk-base-0.11.0
matrix-sdk-base-0.12.0
matrix-sdk-base-0.13.0
matrix-sdk-base-0.16.0
matrix-sdk-base-0.4.0
matrix-sdk-base-0.4.1
matrix-sdk-base-0.8.0
matrix-sdk-base-0.9.0
matrix-sdk-common-0.*
matrix-sdk-common-0.10.0
matrix-sdk-common-0.11.0
matrix-sdk-common-0.12.0
matrix-sdk-common-0.13.0
matrix-sdk-common-0.16.0
matrix-sdk-common-0.4.0
matrix-sdk-common-0.4.1
matrix-sdk-common-0.8.0
matrix-sdk-common-0.9.0
matrix-sdk-crypto-0.*
matrix-sdk-crypto-0.10.0
matrix-sdk-crypto-0.11.0
matrix-sdk-crypto-0.12.0
matrix-sdk-crypto-0.13.0
matrix-sdk-crypto-0.16.0
matrix-sdk-crypto-0.4.0
matrix-sdk-crypto-0.4.1
matrix-sdk-crypto-0.8.0
matrix-sdk-crypto-0.9.0
matrix-sdk-crypto-ffi-0.*
matrix-sdk-crypto-ffi-0.1.0
matrix-sdk-crypto-ffi-0.1.1
matrix-sdk-crypto-ffi-0.1.10
matrix-sdk-crypto-ffi-0.1.2
matrix-sdk-crypto-ffi-0.1.3
matrix-sdk-crypto-ffi-0.1.4
matrix-sdk-crypto-ffi-0.1.5
matrix-sdk-crypto-ffi-0.1.6
matrix-sdk-crypto-ffi-0.1.7
matrix-sdk-crypto-ffi-0.1.8
matrix-sdk-crypto-ffi-0.1.9
matrix-sdk-crypto-ffi-0.11.0
matrix-sdk-crypto-ffi-0.2.0
matrix-sdk-crypto-ffi-0.2.1
matrix-sdk-crypto-ffi-0.3.0
matrix-sdk-crypto-ffi-0.3.1
matrix-sdk-crypto-ffi-0.3.10
matrix-sdk-crypto-ffi-0.3.11
matrix-sdk-crypto-ffi-0.3.12
matrix-sdk-crypto-ffi-0.3.13
matrix-sdk-crypto-ffi-0.3.2
matrix-sdk-crypto-ffi-0.3.4
matrix-sdk-crypto-ffi-0.3.5
matrix-sdk-crypto-ffi-0.3.7
matrix-sdk-crypto-ffi-0.3.8
matrix-sdk-crypto-ffi-0.3.9
matrix-sdk-crypto-ffi-0.4.0
matrix-sdk-crypto-ffi-0.4.1
matrix-sdk-crypto-ffi-0.4.2
matrix-sdk-crypto-ffi-0.4.3
matrix-sdk-crypto-js-v0.*
matrix-sdk-crypto-js-v0.1.0-alpha.0
matrix-sdk-crypto-js-v0.1.0-alpha.1
matrix-sdk-crypto-js-v0.1.0-alpha.2
matrix-sdk-crypto-js-v0.1.0-alpha.4
matrix-sdk-ffi-0.*
matrix-sdk-ffi-0.11.0
matrix-sdk-ffi-0.12.0
matrix-sdk-ffi-0.13.0
matrix-sdk-ffi-0.16.0
Other
matrix-sdk-ffi/20240618
matrix-sdk-ffi/20240704
matrix-sdk-ffi/20240722
matrix-sdk-ffi/20240813
matrix-sdk-ffi/20240827
matrix-sdk-ffi/20240904
matrix-sdk-ffi/20240911
matrix-sdk-ffi/20240913
matrix-sdk-ffi/20240918
matrix-sdk-ffi/20240924
matrix-sdk-ffi/20241008
matrix-sdk-ffi/20241024
matrix-sdk-ffi/20241107
matrix-sdk-ffi/20241127
matrix-sdk-ffi/20241203
matrix-sdk-ffi/20241204
matrix-sdk-ffi/20250131
matrix-sdk-ffi/20250225
matrix-sdk-ffi/20250306
matrix-sdk-ffi/20250320
matrix-sdk-ffi/20250325
matrix-sdk-ffi/20250408
matrix-sdk-ffi/20250422
matrix-sdk-ffi/20250506
matrix-sdk-ffi/20250507
matrix-sdk-ffi/20250521
matrix-sdk-ffi/20250603
matrix-sdk-ffi/20250618
matrix-sdk-ffi/20250701
matrix-sdk-ffi/20250702
matrix-sdk-ffi/20250715
matrix-sdk-ffi/20250728
matrix-sdk-ffi/20250826
matrix-sdk-ffi/20250909
matrix-sdk-ffi/20251007
matrix-sdk-ffi/20251104
matrix-sdk-ffi/20251118
matrix-sdk-ffi/20251202
matrix-sdk-ffi/20252502
sdk-ffi/20250923
matrix-sdk-indexeddb-0.*
matrix-sdk-indexeddb-0.10.0
matrix-sdk-indexeddb-0.11.0
matrix-sdk-indexeddb-0.12.0
matrix-sdk-indexeddb-0.13.0
matrix-sdk-indexeddb-0.16.0
matrix-sdk-indexeddb-0.8.0
matrix-sdk-indexeddb-0.9.0
matrix-sdk-qrcode-0.*
matrix-sdk-qrcode-0.10.0
matrix-sdk-qrcode-0.11.0
matrix-sdk-qrcode-0.12.0
matrix-sdk-qrcode-0.13.0
matrix-sdk-qrcode-0.16.0
matrix-sdk-qrcode-0.8.0
matrix-sdk-qrcode-0.9.0
matrix-sdk-search-0.*
matrix-sdk-search-0.16.0
matrix-sdk-sqlite-0.*
matrix-sdk-sqlite-0.10.0
matrix-sdk-sqlite-0.11.0
matrix-sdk-sqlite-0.12.0
matrix-sdk-sqlite-0.13.0
matrix-sdk-sqlite-0.16.0
matrix-sdk-sqlite-0.8.0
matrix-sdk-sqlite-0.9.0
matrix-sdk-store-encryption-0.*
matrix-sdk-store-encryption-0.10.0
matrix-sdk-store-encryption-0.11.0
matrix-sdk-store-encryption-0.12.0
matrix-sdk-store-encryption-0.13.0
matrix-sdk-store-encryption-0.16.0
matrix-sdk-store-encryption-0.8.0
matrix-sdk-store-encryption-0.9.0
matrix-sdk-test-0.*
matrix-sdk-test-0.10.0
matrix-sdk-test-0.11.0
matrix-sdk-test-0.12.0
matrix-sdk-test-0.13.0
matrix-sdk-test-0.16.0
matrix-sdk-test-0.4.0
matrix-sdk-test-macros-0.*
matrix-sdk-test-macros-0.10.0
matrix-sdk-test-macros-0.11.0
matrix-sdk-test-macros-0.12.0
matrix-sdk-test-macros-0.13.0
matrix-sdk-test-macros-0.16.0
matrix-sdk-test-utils-0.*
matrix-sdk-test-utils-0.16.0
matrix-sdk-ui-0.*
matrix-sdk-ui-0.10.0
matrix-sdk-ui-0.11.0
matrix-sdk-ui-0.12.0
matrix-sdk-ui-0.13.0
matrix-sdk-ui-0.16.0
matrix-sdk-ui-0.8.0
matrix-sdk-ui-0.9.0

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-45057.json"