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Vulnerability Database · crates.io · Package report

bumpalo: vulnerability history, versions and safety

bumpalo is a package in the crates.io ecosystem. Vulert records 5 vulnerabilities for it across 32 releases, from Mar 2020 to Jan 2023. 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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5 vulnerabilities recorded H1 M1 U3
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0 with no fix published

Every vulnerability has a patched version to move to.

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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 bumpalo vulnerabilities

Vulert verdict on bumpalo 3.20.3 i

Updated on 23 Oct 2026

Good news: 3.20.3, the version you would install today, has no known vulnerabilities. Older releases do — the table below lists all 5.

Package health score 81/100
  • Security Minor issues
  • Maintenance Sustainable
  • Popularity Key ecosystem project
  • Community Quiet

What to do: Stay on 3.20.3 or newer. This can change: a vulnerability disclosed tomorrow can affect 3.20.3 too — Vulert watches the package and alerts you if that happens. Monitor it with Vulert →

  • Current release 3.20.3 — unaffected i
  • Vulnerabilities on record 5 over 2 years · 0 in the last year i
  • Latest disclosure 20 Jan 2023 i
  • Highest CVSS 7.5 i
  • With no published fix 0 i
  • Depended on by 26,913 packages i
  • Stars 2,354 i
  • OpenSSF scorecard 4/10 i
  • Last release 5 months ago i
  • Licence Apache-2.0 OR MIT i

Version list, release dates, licence and dependants published by crates.io, refreshed 22 Oct 2026. Licence information is not legal advice.

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01 Versions

Which versions are affected

Every version Vulert tracks for bumpalo, 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
3.20.3 22 May 2026 none Apache-2.0 OR MIT — Details →
3.20.2 19 Feb 2026 none Apache-2.0 OR MIT — Details →
3.20.1 18 Feb 2026 none Apache-2.0 OR MIT — Details →
3.20.0 18 Feb 2026 none Apache-2.0 OR MIT — Details →
3.19.1 16 Dec 2025 none Apache-2.0 OR MIT — Details →
3.19.0 24 Jun 2025 none Apache-2.0 OR MIT — Details →
3.18.1 05 Jun 2025 none Apache-2.0 OR MIT — Details →
3.18.0 05 Jun 2025 none Apache-2.0 OR MIT — Details →
3.17.0 28 Jan 2025 none Apache-2.0 OR MIT — Details →
3.16.0 08 Apr 2024 none Apache-2.0 OR MIT — Details →
3.15.4 07 Mar 2024 none Apache-2.0 OR MIT — Details →
3.15.3 22 Feb 2024 none Apache-2.0 OR MIT — Details →
3.15.2 21 Feb 2024 none Apache-2.0 OR MIT — Details →
3.15.1 20 Feb 2024 none Apache-2.0 OR MIT — Details →
3.15.0 15 Feb 2024 none Apache-2.0 OR MIT — Details →
3.14.0 14 Sep 2023 none Apache-2.0 OR MIT — Details →
3.13.0 22 May 2023 none Apache-2.0 OR MIT — Details →
3.12.2 09 May 2023 none Apache-2.0 OR MIT — Details →
3.12.1 21 Apr 2023 none Apache-2.0 OR MIT — Details →
3.12.0 17 Jan 2023 none Apache-2.0 OR MIT — Details →
3.11.1 18 Oct 2022 none Apache-2.0 OR MIT — Details →
3.11.0 17 Aug 2022 M1 U1 Apache-2.0 OR MIT Yes Details →
3.10.0 01 Jun 2022 M1 U1 Apache-2.0 OR MIT Yes Details →
3.9.1 06 Jan 2022 M1 U1 Apache-2.0 OR MIT Yes Details →
3.9.0 06 Jan 2022 M1 U1 Apache-2.0 OR MIT Yes Details →
3.8.0 19 Oct 2021 M1 U1 Apache-2.0 OR MIT Yes Details →
3.7.1 17 Sep 2021 M1 U1 Apache-2.0 OR MIT Yes Details →
3.7.0 28 May 2021 M1 U1 Apache-2.0 OR MIT Yes Details →
3.6.1 18 Feb 2021 M1 U1 Apache-2.0 OR MIT Yes Details →
3.6.0 29 Jan 2021 M1 U1 Apache-2.0 OR MIT Yes Details →
3.5.0 23 Jan 2021 M1 U1 Apache-2.0 OR MIT Yes Details →
3.4.0 01 Jun 2020 M1 U1 Apache-2.0 OR MIT Yes Details →
3.3.0 13 May 2020 M1 U1 Apache-2.0 OR MIT Yes Details →
3.2.1 24 Mar 2020 M1 U1 Apache-2.0 OR MIT Yes Details →
3.2.0 07 Feb 2020 H1 M1 U3 Apache-2.0 OR MIT Yes Details →
3.1.2 07 Jan 2020 H1 M1 U3 Apache-2.0 OR MIT Yes Details →
3.1.1 03 Jan 2020 H1 M1 U3 Apache-2.0 OR MIT Yes Details →
3.1.0 27 Dec 2019 H1 M1 U3 Apache-2.0 OR MIT Yes Details →
3.0.0 20 Dec 2019 H1 M1 U3 Apache-2.0 OR MIT Yes Details →
2.6.0 19 Aug 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.5.0 01 Jul 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.4.3 20 May 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.4.2 17 May 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.4.1 19 Apr 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.4.0 19 Apr 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.3.0 26 Mar 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.2.2 18 Mar 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.2.1 18 Mar 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.2.0 16 Mar 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.1.0 12 Feb 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
2.0.0 11 Feb 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
1.2.0 16 Jan 2019 M1 U1 Apache-2.0 OR MIT Yes Details →
1.1.0 28 Nov 2018 M1 U1 Apache-2.0 OR MIT Yes Details →
1.0.2 26 Nov 2018 none Apache-2.0 OR MIT — Details →
1.0.1 26 Nov 2018 none Apache-2.0 OR MIT — Details →
1.0.0 24 Nov 2018 none Apache-2.0 OR MIT — Details →

All 56 versions Vulert tracks for this package. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2020 2
  • 2021 1
  • 2022 1
  • 2023 1

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 0 of the 5 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for bumpalo

The 5 most severe of 5 vulnerabilities recorded for this package

Search all 5 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
CVE-2020-35861: Out of Bounds Read in bumpalo 7.5 high 3.2.1 24 Mar 2020
CVE-2020-35861: Memory Exposure Vulnerability in bumpalo 7.5 high 3.2.1 24 Mar 2020
CVE-2020-35861: Out of Bounds Read in bumpalo 7.5 high 3.2.1 25 Aug 2021
CVE-2022-0078: Use-after-free due to a lifetime error in `Vec::into_iter()` in bumpalo N/A unrated 3.11.1 14 Jan 2022
Use-after-free vulnerability in bumpalo crate N/A medium 3.11.1 20 Jan 2023

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 bumpalo

Is bumpalo safe to use?

Vulert records 5 vulnerabilities for bumpalo in crates.io: 0 critical, 1 high, 1 medium and 0 low, plus 3 not yet rated. Every one of them has a published fix, so the practical answer is to run a supported release and keep it patched.

What is bumpalo's Vulert package health score?

Vulert scores bumpalo 81/100, which reads as in good shape. 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).

Is the latest version of bumpalo affected?

No. 3.20.3, the version you would install today, has no vulnerabilities on record against it. Earlier releases do — the version table above lists each release with what affects it.

Which version of bumpalo should I use?

3.20.3 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 bumpalo have?

5 vulnerabilities are recorded for bumpalo in the crates.io ecosystem: 0 critical, 1 high, 1 medium and 0 low, plus 3 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 bumpalo vulnerabilities disclosed?

0 vulnerabilities were recorded for bumpalo in the last 12 months, and the oldest entry in this database dates to 24 Mar 2020. 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 bumpalo 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 bumpalo for upcoming vulnerabilities?

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