GHSA-qxm5-vx5j-pp6w: snapcraft (CVE-2020-27348)

In some conditions, a snap package built by snapcraft includes the current directory in LD_LIBRARY_PATH, allowing a malicious snap to gain code execution within the context of another snap if both ...

CVSS 6.8 MediumEPSS 0.0070 · 53rd percentile

Published by the GitHub Advisory Database at 4 Dec 2020, 03:15 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

Package	Ecosystem	Affected	Fixed in
snapcraft	PyPI	<2.43.1	2.43.1

Identifiers

GHSA-qxm5-vx5j-pp6w · CVE-2020-27348 · PYSEC-2020-109

Weakness (CWE)

CWE-427

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

Snapcraft before 2.43.1 can, under some conditions, build snaps that include the current directory in LD_LIBRARY_PATH. A malicious snap can then execute code in the context of another snap if both plug the home interface or a similar one. Upgrade snapcraft to 2.43.1 or later.

Written 9 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

Score	Rating	CVSS	Vector	Source
6.8	Medium	3.1	CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:H/I:H/A:L	CNA (canonical)

CISA KEV Not listed.
EPSS 0.0070, the 53rd percentile, on 11 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

This record came from the full history of the GitHub Advisory Database, published 4 Dec 2020. New records show when each source confirmed them.

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.