rustc-1.91 vulnerabilities (Ubuntu)

3 vulnerabilities.

• rustc-1.91 Ubuntu Crates in third party registries can override the cached source of other crates CVE-2026-5223 Fix available 6.5 MediumMay 25, 2026
• rustc-1.91 Ubuntu Cargo can be coerced to share credentials between registries CVE-2026-5222 Fix available 2.3 LowMay 25, 2026
• rustc-1.91 Ubuntu tar-rs: unpack_in can chmod arbitrary directories by following symlinks CVE-2026-33056 Fix available 5.1 MediumMarch 19, 2026