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Medium

Double-free race condition in crossbeam-channel Channel Drop

IdentifiersCVE-2025-4574CWE-362

CVE-2025-4574 affects the Rust crossbeam-channel crate. According to the provided content, the internal Channel type's Drop method contains a race condition that can, under some circumstances, trigger a double-free. This memory-management flaw can lead to memory corruption during object destruction when concurrent conditions cause the same memory to be freed more than once.

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Impact, mitigation & remediation

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Impact

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Successful triggering of the flaw can cause a double-free and resulting memory corruption. Depending on allocator behavior and surrounding program state, this may lead to process instability, crashes, undefined behavior, or potentially more severe security consequences. The provided information does not confirm practical code execution.

Mitigation

If you can’t patch tonight, do this now.

As a temporary mitigation, reduce exposure by limiting use of affected crossbeam-channel versions in security-sensitive or untrusted-data processing contexts, and avoid deployment patterns that may exercise concurrent destruction paths involving the internal Channel type. Where feasible, pin to a known-safe version once identified and monitor upstream for patched releases. No complete mitigation is confirmed in the provided information short of applying the fix.

Remediation

Patch, then assume compromise.

Update the crossbeam-channel crate to a version containing the vendor fix for CVE-2025-4574. If a fixed version is not yet identified in the available information, track the upstream advisory and upgrade as soon as a patched release is available. Rebuild dependent applications after updating the crate.
PUBLIC EXPLOITS

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VALID 0 / 0 TOTALView more in app

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ACTIVITY FEED

Recent activity

14 sources tracked across advisories and community write-ups. News coverage will land here when it surfaces.

No news coverage yet. Advisories and community discussion only.

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Detection signatures

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Social activity14

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