CVE-2026-77650: CWE-506 Embedded Malicious Code in droundy append-only-vec
Description
The append-only-vec crate version 0.1.9 for Rust contains embedded malicious code due to a rogue dependency that connects to a command-and-control server, enabling arbitrary code execution during project compilation. This vulnerability is critical with a CVSS score of 9.8, indicating high impact on confidentiality, integrity, and availability.
CVSS v3.1
Score 9.8critical
Affected software
droundy
append-only-vec
pkg:cargo/droundy/append-only-vecRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-77650 affects the append-only-vec crate version 0.1.9 for Rust. The crate includes a rogue dependency that, when compiling a project using this crate, registers with a command-and-control server and enables execution of arbitrary malicious code. This is classified under CWE-506 (Embedded Malicious Code). The vulnerability allows an attacker to execute code remotely without user interaction or privileges, making it highly critical.
Potential Impact
Successful exploitation allows an attacker to execute arbitrary code remotely during the compilation process of a Rust project that depends on append-only-vec 0.1.9. This compromises confidentiality, integrity, and availability of the affected system or environment.
Mitigation Recommendations
No official patch or remediation is currently available for this vulnerability. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Until a fix is released, avoid using append-only-vec version 0.1.9 or audit dependencies carefully before use.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- mitre
- Date Reserved
- 2026-08-21T00:40:26.113Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6a87a15cacd9273b496328dc
Added to database: 08/21/2026, 00:52:44 UTC
Last enriched: 09/10/2026, 19:20:49 UTC
Last updated: 10/05/2026, 06:48:18 UTC
Views: 77
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