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Unrated

Safe ErrorRegistry APIs can cause undefined behavior

GHSA-7hc7-h3f2-r4j6

What to do

Vendor fix available. Upgrade each affected package to the fixed version on its release line (dcrypt-api 2.0.0), 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 dcrypt-api

    Affected
    >= 0.0.0-0, < 2.0.0
    Fixed in
    2.0.0

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.

All published versions of `dcrypt-api` before 2.0.0 exposed safe `ErrorRegistry` operations that could trigger undefined behavior when the default `std` feature was enabled. Stored `Box ` values were erased to raw pointers and later deallocated as `Box `. The `get_error ` operation also performed an unchecked cast to a caller-selected type. Finally, concurrent replacement or clearing could free a value while another thread cloned it. Ordinary safe Rust could therefore cause mismatched deallocation, type confusion, and use-after-free. Crates that re-exported this API are affected transitively. Version 2.0.0 replaces the raw pointers with owned `Box ` values behind a mutex, performs checked downcasts, and uses a mutation generation so concurrent stores and clears win safely. There is no reliable workaround while calling the affected registry API. Upgrade to 2.0.0 or later and avoid process-global error state where possible.

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

    Published from osv record RUSTSEC-2026-0242

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-7hc7-h3f2-r4j6

Advisory: Safe ErrorRegistry APIs can cause undefined behavior
IDs: GHSA-7hc7-h3f2-r4j6
Record: https://patchnext.com/advisories/rustsec-2026-0242 (revision 1, source checked 23 Oct 2026, 22:04 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: dcrypt-api 2.0.0. A vendor fix does not mean a deployment is fixed.

## Affected components
- crates.io dcrypt-api: affected >= 0.0.0-0, < 2.0.0; fixed in 2.0.0

## Suggested inspection (read-only)
- crates.io dcrypt-api: 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 dcrypt-api.
- 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://osv.dev/vulnerability/RUSTSEC-2026-0242 (OSV record RUSTSEC-2026-0242 lists affected ranges: crates.io dcrypt-api >=0.0.0-0 <2.0.0 (fixed))

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