High severity7.0NVD Advisory· Published Feb 11, 2021· Updated Jun 17, 2026
CVE-2021-20188
CVE-2021-20188
Description
A flaw was found in podman before 1.7.0. File permissions for non-root users running in a privileged container are not correctly checked. This flaw can be abused by a low-privileged user inside the container to access any other file in the container, even if owned by the root user inside the container. It does not allow to directly escape the container, though being a privileged container means that a lot of security features are disabled when running the container. The highest threat from this vulnerability is to data confidentiality and integrity as well as system availability.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/containers/libpodGo | < 1.7.0 | 1.7.0 |
Affected products
23- podman/podmandescription
- ghsa-coords22 versionspkg:golang/github.com/containers/libpodpkg:rpm/almalinux/buildahpkg:rpm/almalinux/cockpit-podmanpkg:rpm/almalinux/conmonpkg:rpm/almalinux/containernetworking-pluginspkg:rpm/almalinux/containers-commonpkg:rpm/almalinux/container-selinuxpkg:rpm/almalinux/critpkg:rpm/almalinux/criupkg:rpm/almalinux/fuse-overlayfspkg:rpm/almalinux/oci-systemd-hookpkg:rpm/almalinux/oci-umountpkg:rpm/almalinux/podmanpkg:rpm/almalinux/podman-dockerpkg:rpm/almalinux/python3-criupkg:rpm/almalinux/python-podman-apipkg:rpm/almalinux/runcpkg:rpm/almalinux/skopeopkg:rpm/almalinux/skopeo-testspkg:rpm/almalinux/slirp4netnspkg:rpm/almalinux/toolboxpkg:rpm/almalinux/udica
< 1.7.0+ 21 more
- (no CPE)range: < 1.7.0
- (no CPE)range: < 1.5-8.gite94b4f9.module_el8.5.0+119+9a9ec082
- (no CPE)range: < 11-1.module_el8.5.0+108+00865455
- (no CPE)range: < 2:2.0.15-1.module_el8.5.0+108+00865455
- (no CPE)range: < 0.7.4-4.git9ebe139.module_el8.3.0+2044+12421f43
- (no CPE)range: < 1:0.1.32-6.git1715c90.module_el8.4.0+2478+12421f43
- (no CPE)range: < 2:2.124.0-1.gitf958d0c.module_el8.3.0+2044+12421f43
- (no CPE)range: < 3.12-9.module_el8.3.0+2044+12421f43
- (no CPE)range: < 3.12-9.module_el8.4.0+2496+12421f43
- (no CPE)range: < 0.3-5.module_el8.3.0+2044+12421f43
- (no CPE)range: < 1:0.1.15-2.git2d0b8a3.module_el8.5.0+119+9a9ec082
- (no CPE)range: < 2:2.3.4-2.git87f9237.module_el8.5.0+119+9a9ec082
- (no CPE)range: < 1.0.0-8.git921f98f.module_el8.3.0+2044+12421f43
- (no CPE)range: < 1.0.0-8.git921f98f.module_el8.3.0+2044+12421f43
- (no CPE)range: < 3.12-9.module_el8.3.0+2044+12421f43
- (no CPE)range: < 1.2.0-0.2.gitd0a45fe.module_el8.5.0+2635+e4386a39
- (no CPE)range: < 1.0.0-56.rc5.dev.git2abd837.module_el8.3.0+2044+12421f43
- (no CPE)range: < 1:0.1.32-6.git1715c90.module_el8.4.0+2496+12421f43
- (no CPE)range: < 1:0.1.41-4.module_el8.5.0+108+00865455
- (no CPE)range: < 0.1-5.dev.gitc4e1bc5.module_el8.3.0+2044+12421f43
- (no CPE)range: < 0.0.7-1.module_el8.5.0+108+00865455
- (no CPE)range: < 0.2.1-2.module_el8.5.0+108+00865455
Patches
Vulnerability mechanics
References
6- bugzilla.redhat.com/show_bug.cginvdIssue TrackingPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-9h63-7qf6-mv6rghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-20188ghsaADVISORY
- github.com/containers/podman/commit/2c7b579fe7328dc6db48bdaf60d0ddd9136b1e24ghsaWEB
- github.com/containers/podman/commit/c8bd4746151e6ae37d49c4688f2f64e03db429fcghsaWEB
- github.com/containers/podman/commit/dcf3c742b1ac4d641d66810113f3d17441a412f4ghsaWEB
News mentions
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