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Vulnerability Database · PyPI · Package report

rencode: vulnerability history, versions and safety

rencode is a package in the PyPI ecosystem. Vulert records 2 vulnerabilities for it across 7 releases, first recorded in Sep 2021. 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 H1 U1
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1 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 rencode vulnerabilities

Vulert verdict on rencode 1.0.9 i

Updated on 22 Oct 2026

Careful: 1.0.9 has 2 known vulnerabilities, and 1 has no fix yet. Use an earlier safe version, or the workaround listed for each one.

Package health score 59/100
  • Security Some issues to review
  • Maintenance Sustainable
  • Popularity Little adoption
  • 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 1.0.9 — affected i
  • Vulnerabilities on record 2 over 1 year · 0 in the last year i
  • Latest disclosure 13 Sep 2021 i
  • Highest CVSS 7.5 i
  • With no published fix 1 i
  • Depended on by 7 packages i
  • Stars 30 i
  • OpenSSF scorecard 1/10 i
  • Last release 1 month ago i
  • Licence GPL-3.0-only i

Version list, release dates, licence and dependants published by PyPI, 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 rencode, 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
1.0.9 19 Sep 2026 H1 U1 GPL-3.0-only No Details →
1.0.8 29 May 2025 H1 U1 GPL-3.0 No Details →
1.0.7 28 May 2025 H1 U1 GPL-3.0 No Details →
1.0.6 21 Oct 2018 H1 U1 GPL-3.0 No Details →
1.0.5 16 Jul 2016 H1 U1 — No Details →
1.0.3 03 Oct 2015 H1 U1 — No Details →
1.0.4.post1 — H1 U1 — No Details →

All 7 versions Vulert tracks for this package. Severity counts are the vulnerabilities recorded against that exact release.

02 Disclosure history

How often vulnerabilities are recorded

  • 2021 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 rencode

The 2 most severe of 2 vulnerabilities recorded for this package

Search all 2 in the database →
Vulnerability Severity Fixed version ↓ Disclosed ↓
CVE-2021-40839: Infinite Loop in rencode 7.5 high No fix published 13 Sep 2021
CVE-2021-40839: rencode Package Infinite Loop Denial of Service N/A unrated 572ff74586d9b1daab904c6f7f7009ce0143bb75 10 Sep 2021

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

Updated: 22/Oct/2026 · Vulnerabilities in our DB: 524173

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Questions

About rencode

Is rencode safe to use?

Vulert records 2 vulnerabilities for rencode in PyPI: 0 critical, 1 high, 0 medium and 0 low, plus 1 not yet rated. 1 of them has no published fix yet, so that is the one to avoid or mitigate.

What is rencode's Vulert package health score?

Vulert scores rencode 59/100, 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 rencode affected?

Yes. 1.0.9, the version you would install today, has 2 known vulnerabilities, and 1 has no published fix yet. Use an earlier unaffected release, or the workaround each vulnerability lists.

Which version of rencode should I use?

1.0.9 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 rencode have?

2 vulnerabilities are recorded for rencode in the PyPI ecosystem: 0 critical, 1 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 rencode vulnerabilities disclosed?

0 vulnerabilities were recorded for rencode in the last 12 months, and the oldest entry in this database dates to 10 Sep 2021. 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 rencode 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 rencode for upcoming vulnerabilities?

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