CVE catalog
CVE-2026-95838
containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd's layer unpack handler repeatedly traverses directories for certain opaque whiteout configurations
- Severity
- Medium · CVSS 4.6
CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.22% · Oct 25, 2026
containerd is an open-source container runtime. Prior to 1.7.35, 2.0.12, 2.2.8, and 2.3.5, containerd's layer unpack handler repeatedly traverses directories for certain opaque whiteout configurations. A malicious image layer can trigger repeated directory traversals while opaque whiteouts are processed. Pulling or importing the image can consume CPU, delay container startup, and reduce image-pull concurrency for unrelated deployments. This issue is fixed in versions 1.7.35, 2.0.12, 2.2.8, and 2.3.5.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | containerd | sid | 2.1.9+ds1-5 | vulnerable |
| Debian | containerd | forky | 2.1.9+ds1-5 | vulnerable |
| Debian | containerd | trixie | 1.7.24~ds1-6+deb13u1 | vulnerable |
| Debian | containerd | trixie-security | 1.7.24~ds1-6+deb13u1 | vulnerable |
| Debian | containerd | bookworm | 1.6.20~ds1-1+deb12u3 | vulnerable |
| Debian | containerd | bookworm-security | 1.6.20~ds1-1+deb12u2 | vulnerable |
| Go | github.com/containerd/containerd/v2 | Not reported | 2.3.5 | fixed |
| Go | github.com/containerd/containerd | Not reported | 1.7.35 | fixed |
| Ubuntu | containerd | pro | 1.7.24~ds1-8ubuntu1 | vulnerable |
| Ubuntu | containerd | pro | 1.7.24~ds1-10ubuntu1 | vulnerable |
| Ubuntu | containerd | pro | 1.7.24~ds1-10ubuntu1+esm1 | vulnerable |
| Ubuntu | containerd-app | pro | 1.7.2-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | containerd-app | pro | 1.7.12-0ubuntu2~22.04.1 | vulnerable |
| Ubuntu | containerd-app | pro | 1.7.24-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | containerd-app | pro | 1.7.24-0ubuntu1~22.04.2 | vulnerable |
| Ubuntu | containerd-app | pro | 1.7.27-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | containerd-app | pro | 1.7.28-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | containerd-app | pro | 1.7.28-0ubuntu1~22.04.1+esm1 | vulnerable |
| Ubuntu | containerd-app | pro | 2.2.1-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | containerd-app | pro | 2.2.1-0ubuntu1~22.04.2 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.5.5-0ubuntu3 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.5.9-0ubuntu1 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.5.9-0ubuntu2 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.5.9-0ubuntu3 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.5.9-0ubuntu3.1 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.6.12-0ubuntu1~22.04.1 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.6.12-0ubuntu1~22.04.3 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.6.12-0ubuntu1~22.04.5 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.6.12-0ubuntu1~22.04.6 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.6.12-0ubuntu1~22.04.7 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.6.12-0ubuntu1~22.04.8 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.6.12-0ubuntu1~22.04.9 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.6.12-0ubuntu1~22.04.10 | vulnerable |
| Ubuntu | containerd | 22.04 | 1.6.12-0ubuntu1~22.04.11 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.2-0ubuntu2 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.12-0ubuntu1 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.12-0ubuntu2 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.12-0ubuntu3 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.12-0ubuntu4 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.12-0ubuntu4.1 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.19-0ubuntu1~24.04.1 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.19+really1.7.12-0ubuntu4.2 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.24-0ubuntu1~24.04.1 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.24-0ubuntu1~24.04.2 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.27-0ubuntu1~24.04.1 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.28-0ubuntu1~24.04.1 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 1.7.28-0ubuntu1~24.04.2 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 2.2.1-0ubuntu1~24.04.2 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 2.2.1-0ubuntu1~24.04.3 | vulnerable |
| Ubuntu | containerd-app | 24.04 | 2.2.1-0ubuntu1~24.04.4 | vulnerable |
| Ubuntu | containerd | 26.10 | 1.7.24~ds1-10ubuntu1 | vulnerable |
| Ubuntu | containerd | 26.10 | 2.1.9+ds1-2ubuntu1 | vulnerable |
| Ubuntu | containerd | 26.10 | 2.1.9+ds1-3ubuntu1 | vulnerable |
| Ubuntu | containerd | 26.10 | 2.1.9+ds1-5ubuntu1 | vulnerable |
| Ubuntu | containerd-app | 26.10 | 2.2.2-0ubuntu1 | vulnerable |
| Ubuntu | containerd-app | 26.10 | 2.2.2-0ubuntu2 | vulnerable |
| Ubuntu | containerd-app | 26.10 | 2.3.4+dfsg1-0ubuntu2 | vulnerable |
| Ubuntu | containerd-stable | 26.10 | 2.2.2-0ubuntu1 | vulnerable |
| Ubuntu | containerd-stable | 26.10 | 2.2.2-0ubuntu2 | vulnerable |
| Ubuntu | containerd-stable | 26.10 | 2.3.4+dfsg1-0ubuntu2 | vulnerable |
| Ubuntu | containerd-app | 26.04 | 2.1.3-0ubuntu3 | vulnerable |
| Ubuntu | containerd-app | 26.04 | 2.2.1-0ubuntu1 | vulnerable |
| Ubuntu | containerd-app | 26.04 | 2.2.2-0ubuntu1 | vulnerable |
| Ubuntu | containerd-app | 26.04 | 2.2.2-0ubuntu1.1 | vulnerable |
| Ubuntu | containerd-app | 26.04 | 2.2.2-0ubuntu1.2 | vulnerable |
| Ubuntu | containerd-stable | 26.04 | 2.1.3-0ubuntu1 | vulnerable |
| Ubuntu | containerd-stable | 26.04 | 2.1.5-0ubuntu1 | vulnerable |
| Ubuntu | containerd-stable | 26.04 | 2.2.1-0ubuntu1 | vulnerable |
| Ubuntu | containerd-stable | 26.04 | 2.2.2-0ubuntu1 | vulnerable |
| Ubuntu | containerd-stable | 26.04 | 2.2.2-0ubuntu1.1 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | containerd | source | sid | (unfixed) | not yet assigned | Not reported | [1150921] |
| Debian | containerd | source | forky | (unfixed) | not yet assigned | Not reported | [1150921] |
| Debian | containerd | source | trixie | (unfixed) | not yet assigned | Not reported | [1150921] |
| Debian | containerd | source | bookworm | (unfixed) | not yet assigned | Not reported | [1150921] |
| Go | github.com/containerd/containerd/v2 | Go | Not reported | 2.3.5 | Not reported | GHSA-RP3H-JF77-Q9P4 | Not reported |
| Go | github.com/containerd/containerd | Go | Not reported | 1.7.35 | Not reported | GHSA-RP3H-JF77-Q9P4 | Not reported |
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [containerd]Affected
Details (4)
1.6.20~ds1-1+deb12u3· amd64 · bookwormAffected
nvd · containerd · debian · bookworm; nvd · containerd · debian · 12
1.6.20~ds1-1+deb12u3· arm64 · bookwormAffected
nvd · containerd · debian · bookworm; nvd · containerd · debian · 12
1.6.20~ds1-1+deb12u2· amd64 · bookworm-securityAffected
nvd · containerd · debian · bookworm; nvd · containerd · debian · 12
1.6.20~ds1-1+deb12u2· arm64 · bookworm-securityAffected
nvd · containerd · debian · bookworm; nvd · containerd · debian · 12
- [golang-github-containerd-containerd-dev]Affected
Source package: [containerd]
Details (4)
1.6.20~ds1-1+deb12u3· all · bookwormAffected
nvd · containerd · debian · bookworm; nvd · containerd · debian · 12
1.6.20~ds1-1+deb12u3· all · bookwormAffected
nvd · containerd · debian · bookworm; nvd · containerd · debian · 12
1.6.20~ds1-1+deb12u2· all · bookworm-securityAffected
nvd · containerd · debian · bookworm; nvd · containerd · debian · 12
1.6.20~ds1-1+deb12u2· all · bookworm-securityAffected
nvd · containerd · debian · bookworm; nvd · containerd · debian · 12
[Debian 13 (Trixie)]
- [containerd]Affected
Details (4)
1.7.24~ds1-6+deb13u1· amd64 · trixieAffected
nvd · containerd · debian · 13
1.7.24~ds1-6+deb13u1· arm64 · trixieAffected
nvd · containerd · debian · 13
1.7.24~ds1-6+deb13u1· amd64 · trixie-securityAffected
nvd · containerd · debian · 13
1.7.24~ds1-6+deb13u1· arm64 · trixie-securityAffected
nvd · containerd · debian · 13
- [golang-github-containerd-containerd-dev]Affected
Source package: [containerd]
Details (4)
1.7.24~ds1-6+deb13u1· all · trixieAffected
nvd · containerd · debian · 13
1.7.24~ds1-6+deb13u1· all · trixieAffected
nvd · containerd · debian · 13
1.7.24~ds1-6+deb13u1· all · trixie-securityAffected
nvd · containerd · debian · 13
1.7.24~ds1-6+deb13u1· all · trixie-securityAffected
nvd · containerd · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/csaf/opensuse-su-2026_12152-1.json]
- [https://github.com/advisories/GHSA-rp3h-jf77-q9p4]
- [https://nvd.nist.gov/vuln/detail/CVE-2026-95838]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-95838]
- [https://osv.dev/vulnerability/GHSA-rp3h-jf77-q9p4]
- [https://osv.dev/vulnerability/UBUNTU-CVE-2026-95838]
- [https://security-tracker.debian.org/tracker/CVE-2026-95838]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-95838.json]
[Debian Security Tracker] · [FIRST EPSS] · [GitHub Advisory Database] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX]