CVE-2021-29136

—

CVSS 3.1

5.5 medium

EPSS

<1%p27

Published

Apr 6, 2021 (Apr 6, 2021)

Modified

Jun 17, 2026

Description

Open Container Initiative umoci before 0.4.7 allows attackers to overwrite arbitrary host paths via a crafted image that causes symlink traversal when "umoci unpack" or "umoci raw unpack" is used.

Vendors: linuxfoundation sylabs
Products: umoci, singularity
Weakness: CWE-20
Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

NVD CVE.org GitHub PoCs EPSS (0.3%)

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