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linkme fails to ensure slice elements match the slice's declared type

GHSA-f95p-4cv5-8w8x

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (linkme 0.3.24), redeploy, then verify what is actually installed.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • crates.io linkme

    Affected
    < 0.3.24
    Fixed in
    0.3.24

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
not scored
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

Affected versions allow populating a DistributedSlice of T with elements of an arbitrary other type that coerces to T. For example, elements of type &&str could end up in a slice of type [&str], since &&str coerces to &str via a deref coercion. The flaw was corrected by implementing typechecking for distributed slice elements in such a way that coercion no longer occurs. The element's type must be a subtype of the slice's declared element type.

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from ghsa record GHSA-f95p-4cv5-8w8x

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: GHSA-f95p-4cv5-8w8x

Advisory: linkme fails to ensure slice elements match the slice's declared type
IDs: GHSA-f95p-4cv5-8w8x
Record: https://patchnext.com/advisories/ghsa-f95p-4cv5-8w8x (revision 1, source checked 26 Oct 2026, 15:38 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor fix available; fixed versions by package: linkme 0.3.24. A vendor fix does not mean a deployment is fixed.

## Affected components
- crates.io linkme: affected < 0.3.24; fixed in 0.3.24

## Suggested inspection (read-only)
- crates.io linkme: check the installed version with your package manager.

## Supported action
Upgrade each affected component to a fixed version on its release line. For a transitive dependency, upgrade the parent package or add an override or constraint, then regenerate the lockfile. Redeploy every environment that ran an affected version.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on linkme.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://github.com/advisories/GHSA-f95p-4cv5-8w8x (GitHub-reviewed advisory GHSA-f95p-4cv5-8w8x lists affected ranges: crates.io linkme >=0 <0.3.24)

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