CVE-2021-31819

critical

Description

In Halibut versions prior to 4.4.7 there is a deserialisation vulnerability that could allow remote code execution on systems that already trust each other based on certificate verification.

References

https://github.com/Seanland/snyk-vuln-hunter

https://github.com/advisories/GHSA-hpf7-4c2g-9chf

https://euvd.enisa.europa.eu/vulnerability/EUVD-2021-2073

https://advisories.octopus.com/adv/2021-08---Remote-Code-Execution-via-Deserialisation-in-the-Halibut-Protocol-%28CVE-2021-31819%29.2250309681.html

Details

Source: Mitre, NVD

Published: 2021-09-22

Updated: 2026-06-17

Risk Information

CVSS v2

Base Score: 10

Vector: CVSS2#AV:N/AC:L/Au:N/C:C/I:C/A:C

Severity: Critical

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H