CVE-2025-11233 Affecting rustc package, versions <1.89.0+dfsg1-1


Severity

Recommended
low

Based on default assessment until relevant scores are available.

Threat Intelligence

EPSS
0.52% (42nd percentile)

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  • Snyk IDSNYK-DEBIAN14-RUSTC-13352987
  • published7 Oct 2025
  • disclosed1 Oct 2025

Introduced: 1 Oct 2025

CVE-2025-11233  (opens in a new tab)

How to fix?

Upgrade Debian:14 rustc to version 1.89.0+dfsg1-1 or higher.

NVD Description

Note: Versions mentioned in the description apply only to the upstream rustc package and not the rustc package as distributed by Debian. See How to fix? for Debian:14 relevant fixed versions and status.

Starting from Rust 1.87.0 and before Rust 1.89.0, the tier 3 Cygwin target (x86_64-pc-cygwin) didn't correctly handle path separators, causing the standard library's Path API to ignore path components separated by backslashes. Due to this, programs compiled for Cygwin that validate paths could misbehave, potentially allowing path traversal attacks or malicious filesystem operations.

Rust 1.89.0 fixes the issue by handling both Win32 and Unix style paths in the standard library for the Cygwin target.

While we assess the severity of this vulnerability as "medium", please note that the tier 3 Cygwin compilation target is only available when building it from source: no pre-built binaries are distributed by the Rust project, and it cannot be installed through Rustup. Unless you manually compiled the x86_64-pc-cygwin target you are not affected by this vulnerability. Users of the tier 1 MinGW target (x86_64-pc-windows-gnu) are also explicitly not affected.

CVSS Base Scores

version 3.1