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Vulnerability record · CVE-2026-77649 · published 21 August 2026

CVE-2026-77649: The internment crate 0.8.7 for Rust can trigger execution of malicious code when compiling a project that uses…

The internment crate 0.8.7 for Rust can trigger execution of malicious code when compiling a project that uses the crate, because it has a rogue dependency that registers with a command-and-control server to offer arbitrary code execution.

9.8 CVSS 3.1 Critical EPSS 0.80% · top 45.1% CWE-506 · CWE-506 Deferred
9.8CVSS 3.1 base score
0.80%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
9 Sep 2026Last modified by NVD

Description

The internment crate 0.8.7 for Rust can trigger execution of malicious code when compiling a project that uses the crate, because it has a rogue dependency that registers with a command-and-control server to offer arbitrary code execution.

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

LinkTags
https://blog.rust-lang.org/2026/08/20/supply-chain-attack-on-arrayref
https://github.com/rustsec/advisory-db/issues/3161
https://rustsec.org/advisories/RUSTSEC-2026-0266.html
https://safedep.io/arrayref-proc-macro1-rust-build-time-malware/
https://www.stepsecurity.io/blog/arrayref-rust-crate-supply-chain-attack

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Source: NIST National Vulnerability Database (record CVE-2026-77649), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.