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Vulnerability Database · crates.io · Package report

wee_alloc: vulnerability history, versions and safety

wee_alloc is a package in the crates.io ecosystem. Vulert records 2 vulnerabilities for it across 9 releases, from May 2022 to Sep 2022. Each vulnerability names the versions it affects, the fixed version to move to, and a workaround where no fix has been published.

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2 vulnerabilities recorded C1 U1
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2 with no fix published

No patched version yet — these are the ones to plan around.

See the unfixed vulnerabilities →
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0 in the last 12 months

Nothing new recorded in the last year.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all wee_alloc vulnerabilities

Vulert verdict on wee_alloc 0.4.5 i

Updated on 23 Oct 2026

Careful: 0.4.5 has 2 known vulnerabilities, and 2 have no fix yet. Use an earlier safe version, or the workaround listed for each one.

Package health score 58/100
  • Security Some issues to review
  • Maintenance Slowing
  • Popularity Widely used
  • Community Inactive

The current release has a vulnerability with no published fix, which caps this score.

What to do: Pin an earlier, unaffected release if you can, and apply the workaround each vulnerability lists until a fix is published. No fix yet: Vulert alerts you the moment one is published. Monitor it with Vulert →

  • Current release 0.4.5 — affected i
  • Vulnerabilities on record 2 over 1 year · 0 in the last year i
  • Latest disclosure 16 Sep 2022 i
  • Highest CVSS n/a i
  • With no published fix 2 i
  • Depended on by 271 packages i
  • Stars 714 i
  • OpenSSF scorecard 1/10 i
  • Last release 86 months ago i
  • Licence MPL-2.0 i

Version list, release dates, licence and dependants published by crates.io, refreshed 23 Oct 2026. Licence information is not legal advice.

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01 Versions

Which versions are affected

Every version Vulert tracks for wee_alloc, newest first, with the vulnerabilities recorded against each one. A version showing none has no vulnerability in the Vulert database — open it for the full picture on that release.

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Version Released Vulert vulnerabilities Licence Fix published Details
0.4.5 22 Aug 2019 C1 U1 MPL-2.0 No Details →
0.4.4 15 Apr 2019 C1 U1 MPL-2.0 No Details →
0.4.3 18 Feb 2019 C1 U1 MPL-2.0 No Details →
0.4.2 16 Jul 2018 C1 U1 MPL-2.0 No Details →
0.4.1 15 Jun 2018 C1 U1 MPL-2.0 No Details →
0.4.0 01 May 2018 C1 U1 MPL-2.0 No Details →
0.3.0 25 Apr 2018 C1 U1 MPL-2.0 No Details →
0.2.0 06 Mar 2018 C1 U1 MPL-2.0 No Details →
0.1.0 02 Feb 2018 C1 U1 MPL-2.0 No Details →

All 9 versions Vulert tracks for this package. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2022 2

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 0 of the 2 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for wee_alloc

The 2 most severe of 2 vulnerabilities recorded for this package

Search all 2 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
CVE-2022-0054: Unmaintained wee_alloc crate N/A unrated No fix published 11 May 2022
Unmaintained wee_alloc crate in Rust N/A critical No fix published 16 Sep 2022

Vulnerability wrong, a fix missing, or a package we should cover? Report it and we will fix the record. Report Vulnerability Provide Feedback

Updated: 23/Oct/2026 · Vulnerabilities in our DB: 524315

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Questions

About wee_alloc

Is wee_alloc safe to use?

Vulert records 2 vulnerabilities for wee_alloc in crates.io: 1 critical, 0 high, 0 medium and 0 low, plus 1 not yet rated. 2 of them have no published fix yet, so those are the ones to avoid or mitigate.

What is wee_alloc's Vulert package health score?

Vulert scores wee_alloc 58/100, which reads as usable, but worth attention. The score weighs the vulnerability record (40), maintenance and release cadence (25), adoption from dependents and stars (20) and community signals such as the OpenSSF scorecard and forks (15). The current release has a vulnerability with no published fix, which caps this score.

Is the latest version of wee_alloc affected?

Yes. 0.4.5, the version you would install today, has 2 known vulnerabilities, and 2 has no published fix yet. Use an earlier unaffected release, or the workaround each vulnerability lists.

Which version of wee_alloc should I use?

0.4.5 is the version Vulert recommends for the affected releases. The version table above lists every release with the vulnerabilities recorded against it, so you can confirm the range you actually run.

How many vulnerabilities does wee_alloc have?

2 vulnerabilities are recorded for wee_alloc in the crates.io ecosystem: 1 critical, 0 high, 0 medium and 0 low, plus 1 not yet rated. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new wee_alloc vulnerabilities disclosed?

0 vulnerabilities were recorded for wee_alloc in the last 12 months, and the oldest entry in this database dates to 11 May 2022. Recency matters more than a lifetime total: it shows how actively new issues are being disclosed for the package you are considering.

Which versions of wee_alloc are affected?

Each vulnerability on this page lists the affected version range and the fixed version to move to. Open the vulnerability for the version you actually run — fixes are specific to a release line, not to the package as a whole.

How do I monitor wee_alloc for upcoming vulnerabilities?

Upload the manifest or SBOM for your application at vulert.com/scanner and Vulert keeps checking the wee_alloc version you actually run against new disclosures, then alerts you when one affects it. There is no installation and no source-code access required.