CVE-2024-34353 json
matrix-sdk-crypto contains a log exposure of private key of the server-side key backup
published 2024-05-13 2 y ago modified 2026-09-10 1 mo ago also GHSA-9ggc-845v-gcgv , EUVD-2024-1554
- cvss
- 5.5
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.2%
- EPSS 0.2% chance of exploitation in 30 days, percentile 9%
- public exploits
- 0
- none known
Summary
The matrix-sdk-crypto crate, part of the Matrix Rust SDK project, is an implementation of a Matrix end-to-end encryption state machine in Rust. In Matrix, the server-side `key backup` stores encrypted copies of Matrix message keys. This facilitates key sharing between a user's devices and provides a redundant copy in case all devices are lost. The key backup uses asymmetric cryptography, with each server-side key backup assigned a unique public-private key pair. Due to a logic bug introduced in commit 71136e44c03c79f80d6d1a2446673bc4d53a2067, matrix-sdk-crypto version 0.7.0 will sometimes log the private part of the backup key pair to Rust debug logs (using the `tracing` crate). This issue has been resolved in matrix-sdk-crypto version 0.7.1. No known workarounds are available.
Patch / fix
- crates.io matrix-sdk-crypto 0.7.1
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.19% chance of exploitation in the next 30 days, higher than 9% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
| GitHub | 3.1 | 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| crates.io | matrix-sdk-crypto | >=0.7.0, <0.7.1 |
0.7.1 |
Affected products
- matrix-org matrix-sdk-crypto
Classification
- Weakness
-
- CWE-532 Insertion of Sensitive Information into Log File
References
-
github.com
/matrix-org/matrix-rust-sdk/commit/71136e44c03c79f80d6d1a2446673bc4d53a2067
web
-
github.com
/matrix-org/matrix-rust-sdk/commit/fa10bbb5dd0f9120a51aa1854cec752e25790bb0
web
-
github.com
/matrix-org/matrix-rust-sdk/security/advisories/GHSA-9ggc-845v-gcgv
web
- crates.io /crates/matrix-sdk-crypto/0.7.1
-
github.com
/matrix-org/matrix-rust-sdk/releases/tag/matrix-sdk-crypto-0.7.1
web
-
nvd.nist.gov
/vuln/detail/CVE-2024-34353
advisory
-
github.com
/matrix-org/matrix-rust-sdk
package
Sources
- CVE List CVE-2024-34353
- GitHub Advisory GHSA-9ggc-845v-gcgv
- NVD CVE-2024-34353
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