CVE-2025-11233

Description

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.

Read the notes from the security team

Why is this CVE low priority?

Only affects cygwin target

Learn more about Ubuntu priority

Status

Show unmaintained releases

Package	Ubuntu Release	Status
rustc	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
	18.04 LTS bionic	Not affected
	16.04 LTS xenial	Not affected
	14.04 LTS trusty	Not affected
rustc-1.62	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not in release
	22.04 LTS jammy	Not affected
rustc-1.74	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not in release
rustc-1.76	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
rustc-1.77	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
rustc-1.78	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
rustc-1.79	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
rustc-1.80	25.10 questing	Not in release
	25.04 plucky	Not in release
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
	20.04 LTS focal	Not affected
rustc-1.88	25.10 questing	Needs evaluation
	25.04 plucky	Not in release
	24.04 LTS noble	Not in release
	22.04 LTS jammy	Not in release
rustc-1.81	25.10 questing	Not in release
	25.04 plucky	Ignored end of life, was not-affected (1.87+ only)
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
rustc-1.82	25.10 questing	Not in release
	25.04 plucky	Ignored end of life, was not-affected (1.87+ only)
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
rustc-1.83	25.10 questing	Not in release
	25.04 plucky	Ignored end of life, was not-affected (1.87+ only)
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
rustc-1.84	25.10 questing	Not in release
	25.04 plucky	Ignored end of life, was not-affected (1.87+ only)
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected
rustc-1.85	25.10 questing	Not affected
	25.04 plucky	Ignored end of life, was not-affected (1.87+ only)
	24.04 LTS noble	Not affected
	22.04 LTS jammy	Not affected

Notes

sbeattie

cargo in mantic was merged into rustc

mdeslaur

Introduced in 1.87.0 Only affects the cygwin target, so lowering priority to "low"