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Vulnerability Database · crates.io · Package report

rustls: vulnerability history, versions and safety

rustls is a package in the crates.io ecosystem. Vulert records 10 vulnerabilities for it across 114 releases, from Apr 2024 to Oct 2026. 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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10 vulnerabilities recorded H1 M2 U7
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0 with no fix published

Every vulnerability has a patched version to move to.

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6 in the last 12 months

Most recent disclosure 14 Oct 2026.

See the disclosure history →
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0 malicious-package vulnerabilities

No published version shipped hostile code.

See all rustls vulnerabilities

Vulert verdict on rustls 0.23.46 i

Updated on 23 Oct 2026

Good news: 0.23.46, the version you would install today, has no known vulnerabilities. Older releases do — the table below lists all 10.

Package health score 70/100
  • Security Some issues to review
  • Maintenance Sustainable
  • Popularity Niche
  • Community Active

What to do: Stay on 0.23.46 or newer. This can change: a vulnerability disclosed tomorrow can affect 0.23.46 too — Vulert watches the package and alerts you if that happens. Monitor it with Vulert →

  • Current release 0.23.46 — unaffected i
  • Vulnerabilities on record 10 over 2 years · 6 in the last year i
  • Latest disclosure 14 Oct 2026 i
  • Highest CVSS 7.5 i
  • With no published fix 0 i
  • Stars 7,685 i
  • Last release this month i
  • Licence Apache-2.0 OR ISC 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 rustls, 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
0.23.46 14 Oct 2026 none Apache-2.0 OR ISC OR MIT — Details →
0.24.0-dev.2 14 Oct 2026 none Apache-2.0 OR ISC OR MIT — Details →
0.23.45 14 Sep 2026 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.44 07 Sep 2026 M1 U5 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.43 29 Jul 2026 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.24.0-dev.1 23 Jul 2026 none Apache-2.0 OR ISC OR MIT — Details →
0.23.42 13 Jul 2026 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.41 22 Jun 2026 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.40 28 Apr 2026 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.39 22 Apr 2026 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.38 12 Apr 2026 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.37 24 Feb 2026 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.24.0-dev.0 28 Jan 2026 none Apache-2.0 OR ISC OR MIT — Details →
0.23.36 05 Jan 2026 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.35 04 Nov 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.34 22 Oct 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.33 17 Oct 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.32 19 Sep 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.31 29 Jul 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.30 27 Jul 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.29 10 Jul 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.28 16 Jun 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.27 05 May 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.26 10 Apr 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.25 17 Mar 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.24 17 Mar 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.23 11 Feb 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.22 30 Jan 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.21 10 Jan 2025 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.20 11 Dec 2024 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.19 27 Nov 2024 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.18 22 Nov 2024 M1 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.17 16 Nov 2024 M2 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.16 28 Oct 2024 M2 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.15 16 Oct 2024 M2 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.14 04 Oct 2024 M2 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.13 10 Sep 2024 M2 U4 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.12 23 Jul 2024 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.11 08 Jul 2024 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.10 13 Jun 2024 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.9 03 Jun 2024 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.8 23 May 2024 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.7 17 May 2024 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.6 16 May 2024 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.12 26 Apr 2024 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.11 19 Apr 2024 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.4 19 Apr 2024 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.5 19 Apr 2024 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.4 25 Mar 2024 H1 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.3 25 Mar 2024 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.3 20 Mar 2024 H1 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.2 13 Mar 2024 H1 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.1 01 Mar 2024 H1 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.23.0 29 Feb 2024 H1 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.2 08 Jan 2024 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.1 08 Dec 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.10 08 Dec 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.0 02 Dec 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.0-alpha.6 29 Nov 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.0-alpha.5 24 Nov 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.9 16 Nov 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.0-alpha.4 14 Nov 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.8 24 Oct 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.0-alpha.3 21 Sep 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.0-alpha.2 08 Sep 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.22.0-alpha.1 06 Sep 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.9 28 Aug 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.7 28 Aug 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.6 02 Aug 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.5 10 Jul 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.4 10 Jul 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.3 05 Jul 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.2 14 Jun 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.1 01 May 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.0 29 Mar 2023 U3 Apache-2.0 OR ISC OR MIT Yes Details →
0.21.0-alpha.1 30 Jan 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.8 12 Jan 2023 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.7 18 Oct 2022 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.6 18 May 2022 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.5 14 May 2022 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.4 19 Feb 2022 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.3 13 Feb 2022 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.2 21 Nov 2021 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.1 14 Nov 2021 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.0 26 Sep 2021 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.0-beta2 04 Jul 2021 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.20.0-beta1 04 Jul 2021 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.19.1 17 Apr 2021 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.19.0 22 Nov 2020 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.18.1 16 Aug 2020 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.18.0 04 Jul 2020 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.17.0 22 Feb 2020 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.16.0 10 Aug 2019 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.15.2 02 Apr 2019 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.15.1 29 Jan 2019 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.15.0 20 Jan 2019 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.14.0 30 Sep 2018 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.13.1 17 Aug 2018 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.13.0 15 Jul 2018 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.12.0 06 Jan 2018 U2 Apache-2.0 OR ISC OR MIT Yes Details →
0.11.0 28 Aug 2017 U2 — Yes Details →
0.10.0 12 Aug 2017 U2 — Yes Details →
0.9.0 16 Jun 2017 U2 — Yes Details →
0.8.0 14 May 2017 U2 — Yes Details →
0.7.0 08 May 2017 U2 — Yes Details →
0.6.0 06 May 2017 U2 — Yes Details →
0.5.8 16 Mar 2017 U2 — Yes Details →
0.5.7 27 Feb 2017 U2 — Yes Details →
0.5.6 19 Feb 2017 U2 — Yes Details →
0.5.5 03 Feb 2017 U2 — Yes Details →
0.5.4 26 Jan 2017 U2 — Yes Details →
0.5.3 16 Dec 2016 U2 — Yes Details →
0.5.2 07 Oct 2016 U2 — Yes Details →
0.5.1 02 Oct 2016 U2 — Yes Details →
0.5.0 27 Sep 2016 U2 — Yes Details →
0.1.2 03 Sep 2016 U2 — Yes Details →
0.1.1 28 Aug 2016 U2 — Yes Details →
0.1.0 27 Aug 2016 U2 — Yes Details →

All 118 versions Vulert tracks for this package. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2024 4
  • 2026 6

Counted by the year Vulert recorded each vulnerability — the same date the table below shows as disclosed. 6 of the 10 were recorded in the last 12 months.

03 Vulnerabilities

Recorded vulnerabilities for rustls

The 5 most severe of 10 vulnerabilities recorded for this package

Search all 10 in the database →
Vulnerability Severity Fixed version ↑ Disclosed ↑
Infinite Loop Vulnerability in rustls 7.5 high 0.21.11 19 Apr 2024
CVE-2024-32650: Infinite loop in rustls::conn::ConnectionCommon::complete_io() with proper client input 7.5 high 0.23.5 19 Apr 2024
Network-Reachable Panic in rustls: Fragmented TLS ClientHello Handling Issue 6.9 medium 0.23.18 25 Nov 2024
TLS 1.3 Handshake Vulnerability in Rustls: Incorrect Acceptance of Handshake Messages 5.3 medium 0.23.45 14 Sep 2026
TLS 1.3 Handshake Message Acceptance Issue in Rustls: Vulnerability Overview 5.3 medium 0.23.45 05 Oct 2026

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 rustls

Is rustls safe to use?

Vulert records 10 vulnerabilities for rustls in crates.io: 0 critical, 1 high, 2 medium and 0 low, plus 7 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 rustls's Vulert package health score?

Vulert scores rustls 70/100, 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 rustls affected?

No. 0.23.46, 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 rustls should I use?

0.23.46 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 rustls have?

10 vulnerabilities are recorded for rustls in the crates.io ecosystem: 0 critical, 1 high, 2 medium and 0 low, plus 7 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 rustls vulnerabilities disclosed?

6 vulnerabilities were recorded for rustls in the last 12 months, and the oldest entry in this database dates to 19 Apr 2024. 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 rustls 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 rustls for upcoming vulnerabilities?

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