GHSA-wchh-9x6h-7f6p olm dependency deprecation: CVE-2022-39255 and CVE-2024-45193

• PyPI matrix-commander: <= 8.0.6 (no fix yet)

Problem Multiple vulnerabilities were disclosed in 2024 affecting libolm (Olm): AES timing / side‑channel, Ed25519 signature malleability, and timing leaks in base64 decoding; several CVEs were assigned. Patches and mitigations were published; maintainers recommend upgrading to fixed versions. In addition, a 2022 “Olm/Megolm protocol confusion” advisory affecting some SDKs was critical and required client-side fixes. Use patched versions of libolm and up-to-date Matrix SDKs; avoid unpatched clients/servers. Olm is a dependency of `matrix-commander` (Python version, not Rust version). WARNING: Due to cryptographic olm dependency deprecation, this program is cryptographically unsafe to use until https://github.com/matrix-nio/matrix-nio/pull/555 is merged. Good news: https://github.com/8go/matrix-commander-rs is a Rust alternative not having this issue. References • CVE-2022-39255 • CVE-2024-45193 • https://soatok.blog/2024/08/14/security-issues-in-matrixs-olm-library/ • https://nvd.nist.gov/nvd.cfm?cvename=CVE-2024-45193 • https://github.com/matrix-org/matrix-ios-sdk/security/advisories/GHSA-hw6g-j8v6-9hcm Workarounds • use the Rust version: https://github.com/8go/matrix-commander-rs Severity: Medium CVE-2022-39255 — MEDIUM (NVD/MITRE lists CVSS base score 5.x — treated as Medium). CVE-2024-45193 — MEDIUM (NVD shows CVSS 3.1 base score ~4.3 — Medium)