CVE-2026-61670
mediummicrosandbox is an easy, fast, local-first microVM runtime and library.
microsandbox is an easy, fast, local-first microVM runtime and library. Prior to 0.5.10, sdk/rust/lib/runtime/spawn.rs serializes NetworkConfig secret values into the --network-config argument and passes per-sandbox secrets through repeated --env arguments accepted by crates/cli/lib/sandbox_cmd.rs. Other local users or co-resident processes can read these values through the host process table, including /proc process command lines on Linux and process listings on Linux and macOS, for the lifetime of the sandbox. Exploitation does not require code execution inside the sandbox or access to the spawning user's session, and can disclose host-side API keys, tokens, and environment secrets on shared hosts, CI runners, and developer systems. This issue is fixed in version 0.5.10.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/superradcompany/microsandbox/commit/2ac6a177b11212d392bf1e7dc77aaf14e47... security-advisories@github.com
- https://github.com/superradcompany/microsandbox/commit/fbfb2366bfafad5e6df8778183f95fd8ca3... security-advisories@github.com
- https://github.com/superradcompany/microsandbox/issues/997 security-advisories@github.com
- https://github.com/superradcompany/microsandbox/pull/1006 security-advisories@github.com
- https://github.com/superradcompany/microsandbox/releases/tag/v0.5.10 security-advisories@github.com
- https://github.com/superradcompany/microsandbox/security/advisories/GHSA-m8f5-rh7h-vgg3 security-advisories@github.com