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VulnerabilityPublished

CVE-2026-114613: Miniforge3 · MessagePack is the serializer implementation for Python msgpack

Affects miniforge3Source GCVE Database

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Authoritative record:CVE-2026-114613· High 7.5

Not known to be exploited · CVSS 7.5 High : upgrade to 25.11.0.1-r6 soon.

Data as of 14 Nov 2026, 02:05 UTC

CVSS 3.1 base score
7.5High
How severe the flaw is on the 0–10 CVSS scale.

Thin evidence

One scorer or none
CVSS scores by source
CNA (GitHub_M)CVSS 3.17.5
Patch
Available – fixed in 25.11.0.1-r6, 26.1.1.3-r4, 26.3.2.3-r6
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 22 Oct 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 13 Nov 2026.

What to do

Upgrade miniforge3 to 25.11.0.1-r6; miniforge3 to 26.1.1.3-r4; miniforge3 to 26.3.2.3-r6.

Affected software

ProductAffectedFixed in
CleanStartminiforge3pkg:apk/cleanstart/miniforge3?arch=x86_64Other threatsAffected
  • <25.11.0.1-r6
Fixed in
  • 25.11.0.1-r6
CleanStartminiforge3pkg:apk/cleanstart/miniforge3?arch=aarch64Other threatsAffected
  • <25.11.0.1-r6
Fixed in
  • 25.11.0.1-r6
CleanStartminiforge3pkg:apk/cleanstart/miniforge3?arch=x86_64Other threatsAffected
  • <26.1.1.3-r4
Fixed in
  • 26.1.1.3-r4
CleanStartminiforge3pkg:apk/cleanstart/miniforge3?arch=aarch64Other threatsAffected
  • <26.1.1.3-r4
Fixed in
  • 26.1.1.3-r4
CleanStartminiforge3pkg:apk/cleanstart/miniforge3?arch=x86_64Other threatsAffected
  • <26.3.2.3-r6
Fixed in
  • 26.3.2.3-r6
CleanStartminiforge3pkg:apk/cleanstart/miniforge3?arch=aarch64Other threatsAffected
  • <26.3.2.3-r6
Fixed in
  • 26.3.2.3-r6

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Users should upgrade to the fixed versions 25.11.0.1-r6, 26.1.1.3-r4, or 26.3.2.3-r6 of miniforge3 to remediate this vulnerability. Patch availability has been confirmed, and applying these updates will mitigate the risk.

Description

A high-severity security vulnerability (CVE-2026-114613) affects the miniforge3 package, specifically in the MessagePack serializer implementation for Python msgpack. The vulnerability has no impact on confidentiality or integrity but causes high impact on availability. Fixed versions have been released to address this issue.

References

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