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Vulnerability Database · OSS-Fuzz · Package report

simdutf: vulnerability history, versions and safety

simdutf is a package in the OSS-Fuzz ecosystem. Vulert records 6 vulnerabilities for it across 12 releases, from Apr 2023 to Aug 2024. 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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6 vulnerabilities recorded H6
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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 simdutf vulnerabilities

Vulert verdict on simdutf i

Updated on 23 Oct 2026

Every vulnerability Vulert records for this package has a fix, and the newest was recorded 21 Aug 2024. Apply the fixes listed below and you are clear.

Long-term outlook: usable, with an upgrade 6 vulnerabilities on record across 1 year, none in the last year.

What to do: Move the affected dependencies to the fixed versions listed below, then keep the package monitored so the next vulnerability reaches you. Fix it, then keep watch: Vulert alerts you when a new vulnerability affects the version you run. Monitor it with Vulert →

  • Vulnerabilities on record 6 over 1 year · 0 in the last year i
  • Latest disclosure 21 Aug 2024 i
  • Highest CVSS n/a i
  • With no published fix 0 i

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01 Versions

Which versions are affected

Every version Vulert holds for simdutf, newest first, with the vulnerabilities that name it. A version with a count of zero has no recorded vulnerabilities; open a version to see the vulnerabilities it is exposed to.

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Version Vulert vulnerabilities Fix published Details
v5.3.9 H1 Yes Details →
v5.3.8 H1 Yes Details →
v5.3.7 H2 Yes Details →
v5.3.6 H2 Yes Details →
v5.3.5 H2 Yes Details →
v4.0.8 H1 Yes Details →
v4.0.7 H1 Yes Details →
v4.0.6 H1 Yes Details →
v4.0.5 H1 Yes Details →
v4.0.4 H1 Yes Details →
v3.2.4 H2 Yes Details →
v3.2.3 H2 Yes Details →

Newest 12 of 12 versions on record. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2023 3
  • 2024 3

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 0 of the 6 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for simdutf

The 5 most severe of 6 vulnerabilities recorded for this package

Search all 6 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
Heap-buffer-overflow in simdutf package N/A high 72af817153515c8715417794e7b0d7b91eb1be12 03 Apr 2023
Heap-buffer-overflow in simdutf::haswell::implementation::convert_utf8_to_utf32 N/A high 03280d7dbe8e91f0ecc06d88fef8adc0fbb41d14 05 Apr 2023
Heap-buffer-overflow in simdutf package N/A high 03280d7dbe8e91f0ecc06d88fef8adc0fbb41d14 05 Apr 2023
Heap-buffer-overflow in simdutf N/A high c708a9e4c1dc880241c252bec76fada53ab84da3 25 Jan 2024
Heap-buffer-overflow in simdutf::haswell::implementation::convert_utf8_to_utf16be N/A high 4605fef51a235baf940ea56db71c60e0389fe01e 18 Aug 2024

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 simdutf

Is simdutf safe to use?

Vulert records 6 vulnerabilities for simdutf in OSS-Fuzz: 0 critical, 6 high, 0 medium and 0 low. Every one of them has a published fix, so the practical answer is to run a supported release and keep it patched.

How many vulnerabilities does simdutf have?

6 vulnerabilities are recorded for simdutf in the OSS-Fuzz ecosystem: 0 critical, 6 high, 0 medium and 0 low. The ledger on this page lists the same counts next to the date of the most recent disclosure.

How often are new simdutf vulnerabilities disclosed?

0 vulnerabilities were recorded for simdutf in the last 12 months, and the oldest entry in this database dates to 03 Apr 2023. 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 simdutf 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 simdutf for upcoming vulnerabilities?

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