Incorrect Default Permissions in runc
runc is a CLI tool for spawning and running containers on Linux according to the OCI specification. A bug was found in runc prior to version 1.1.2 where `runc exec --cap` created processes with non-empty inheritable Linux process capabilities, creating an atypical Linux environment and enabling programs with inheritable file capabilities to elevate those capabilities to the permitted set during execve(2). This bug did not affect the container security sandbox as the inheritable set never contained more capabilities than were included in the container's bounding set. This bug has been fixed in runc 1.1.2. This fix changes `runc exec --cap` behavior such that the additional capabilities granted to the process being executed (as specified via `--cap` arguments) do not include inheritable capabilities. In addition, `runc spec` is changed to not set any inheritable capabilities in the created example OCI spec (`config.json`) file.
- Published
- May 17, 2022
- Updated
- Jun 17, 2026
- EPSS
- 0.4% · 31th percentile
- CWE
- CWE-276
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Report tools
Action score
31
Monitor
Low priority for now.
- CVSS
- 31 / 40 · 7.8 / 10
- CISA KEV
- 0 / 30 · Not listed
- EPSS
- 0 / 30 · 0.4%
CISA SSVC decision
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
Vulnrichment: CISA's decision-tree inputs.
CNA vs NVD score
- NVD
- 7.8
- CNA · GitHub_M
- 5.9
- 1.9 point gap
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L
The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.
Affected systems
| Vendor | Product | CPE |
|---|---|---|
| linuxfoundation | runc | cpe:2.3:a:linuxfoundation:runc |
| fedoraproject | fedora | cpe:2.3:o:fedoraproject:fedora |
Using runc? Add it to your stack and be the first to know about CVEs like this one. (Docker)
Affected versions
NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.
- fedoraproject fedora34
- fedoraproject fedora35
- fedoraproject fedora36
- linuxfoundation runcbefore 1.1.2
Versions reported by the vendor
Affected version ranges reported by the assigning authority (GitHub_M). Independent of NVD's CPE analysis and usually ahead of it.
opencontainers runc
- < 1.1.2affected
Package-level exposure
OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.
| Ecosystem | Package | Affected range | Fix |
|---|---|---|---|
| AlmaLinux:8 | aardvark-dns | before 2:1.0.1-35.module_el8.7.0+3344+5bcd850f | 2:1.0.1-35.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | buildah | before 1:1.24.5-2.module_el8.7.0+3344+5bcd850f | 1:1.24.5-2.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | buildah-tests | before 1:1.24.5-2.module_el8.7.0+3344+5bcd850f | 1:1.24.5-2.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | cockpit-podman | before 46-1.module_el8.7.0+3344+5bcd850f | 46-1.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | conmon | before 2:2.1.4-1.module_el8.7.0+3344+5bcd850f | 2:2.1.4-1.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | container-selinux | before 2:2.189.0-1.module_el8.7.0+3344+5bcd850f | 2:2.189.0-1.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | containernetworking-plugins | before 1:1.1.1-2.module_el8.7.0+3344+5bcd850f | 1:1.1.1-2.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | containers-common | before 2:1-35.module_el8.7.0+3344+5bcd850f | 2:1-35.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | crit | before 3.15-3.module_el8.6.0+2877+8e437bf5 | 3.15-3.module_el8.6.0+2877+8e437bf5 |
| AlmaLinux:8 | crit | before 3.15-3.module_el8.6.0+3137+d33c3efb | 3.15-3.module_el8.6.0+3137+d33c3efb |
| AlmaLinux:8 | criu | before 3.15-3.module_el8.6.0+3137+d33c3efb | 3.15-3.module_el8.6.0+3137+d33c3efb |
| AlmaLinux:8 | criu | before 3.15-3.module_el8.6.0+2877+8e437bf5 | 3.15-3.module_el8.6.0+2877+8e437bf5 |
| AlmaLinux:8 | criu-devel | before 3.15-3.module_el8.6.0+2877+8e437bf5 | 3.15-3.module_el8.6.0+2877+8e437bf5 |
| AlmaLinux:8 | criu-devel | before 3.15-3.module_el8.6.0+3137+d33c3efb | 3.15-3.module_el8.6.0+3137+d33c3efb |
| AlmaLinux:8 | criu-libs | before 3.15-3.module_el8.6.0+3137+d33c3efb | 3.15-3.module_el8.6.0+3137+d33c3efb |
| AlmaLinux:8 | criu-libs | before 3.15-3.module_el8.6.0+2877+8e437bf5 | 3.15-3.module_el8.6.0+2877+8e437bf5 |
| AlmaLinux:8 | crun | before 1.5-1.module_el8.7.0+3344+5bcd850f | 1.5-1.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | fuse-overlayfs | before 1.9-1.module_el8.7.0+3344+5bcd850f | 1.9-1.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | libslirp | before 4.4.0-1.module_el8.6.0+3137+d33c3efb | 4.4.0-1.module_el8.6.0+3137+d33c3efb |
| AlmaLinux:8 | libslirp | before 4.4.0-1.module_el8.6.0+2877+8e437bf5 | 4.4.0-1.module_el8.6.0+2877+8e437bf5 |
| AlmaLinux:8 | libslirp-devel | before 4.4.0-1.module_el8.6.0+2877+8e437bf5 | 4.4.0-1.module_el8.6.0+2877+8e437bf5 |
| AlmaLinux:8 | libslirp-devel | before 4.4.0-1.module_el8.6.0+3137+d33c3efb | 4.4.0-1.module_el8.6.0+3137+d33c3efb |
| AlmaLinux:8 | netavark | before 2:1.0.1-35.module_el8.7.0+3344+5bcd850f | 2:1.0.1-35.module_el8.7.0+3344+5bcd850f |
| AlmaLinux:8 | oci-seccomp-bpf-hook | before 1.2.5-1.module_el8.7.0+3344+5bcd850f | 1.2.5-1.module_el8.7.0+3344+5bcd850f |
+96
Same product
linuxfoundation: all recordsOther highest-scoring records for the same primary product.
- CVE-2024-21626runc container breakout through process.cwd trickery and leaked fds40Plan
- CVE-2021-30465runc before 1.0.0-rc95 allows a Container Filesystem Breakout via Directory Traversal.36Monitor
- CVE-2025-52565container escape due to /dev/console mount and related races33Monitor
- CVE-2023-28642AppArmor bypass with symlinked /proc in runc31Monitor
- CVE-2025-52881runc: LSM labels can be bypassed with malicious config using dummy procfs files29Monitor
- CVE-2025-31133runc container escape via "masked path" abuse due to mount race conditions29Monitor
Remediation
Which version to upgrade to
Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.
| Product / package | Fixed version | Source |
|---|---|---|
| almalinux:aardvark-dns | 2:1.0.1-35.module_el8.7.0+3344+5bcd850f · AlmaLinux:8 | Package registry (OSV) |
| almalinux:buildah | 1:1.24.5-2.module_el8.7.0+3344+5bcd850f · AlmaLinux:8 | Package registry (OSV) |
| almalinux:buildah-tests | 1:1.24.5-2.module_el8.7.0+3344+5bcd850f · AlmaLinux:8 | Package registry (OSV) |
| almalinux:cockpit-podman | 46-1.module_el8.7.0+3344+5bcd850f · AlmaLinux:8 | Package registry (OSV) |
| almalinux:conmon | 2:2.1.4-1.module_el8.7.0+3344+5bcd850f · AlmaLinux:8 | Package registry (OSV) |
| almalinux:container-selinux | 2:2.189.0-1.module_el8.7.0+3344+5bcd850f · AlmaLinux:8 | Package registry (OSV) |
| almalinux:containernetworking-plugins | 1:1.1.1-2.module_el8.7.0+3344+5bcd850f · AlmaLinux:8 | Package registry (OSV) |
| almalinux:containers-common | 2:1-35.module_el8.7.0+3344+5bcd850f · AlmaLinux:8 | Package registry (OSV) |
| almalinux:crit | 3.15-3.module_el8.6.0+3137+d33c3efb · AlmaLinux:8 | Package registry (OSV) |
| almalinux:criu | 3.15-3.module_el8.6.0+2877+8e437bf5 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:criu-devel | 3.15-3.module_el8.6.0+2877+8e437bf5 · AlmaLinux:8 | Package registry (OSV) |
| almalinux:criu-libs | 3.15-3.module_el8.6.0+2877+8e437bf5 · AlmaLinux:8 | Package registry (OSV) |
| debian:runc | 1.1.3+ds1-1 · Debian:12 | Package registry (OSV) |
| Go:github.com/opencontainers/runc | 1.1.2 | Package registry (OSV) |
| opensuse:containerd | 1.6.6-150000.73.2 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:docker | 20.10.17_ce-150000.166.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:docker-kubic | 20.10.17_ce-150000.166.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:kubevirt | 0.49.0-150300.8.13.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| opensuse:runc | 1.1.3-150000.30.1 · openSUSE:Leap 15.3 | Package registry (OSV) |
| red hat:cri-o | 0:1.24.1-11.rhaos4.11.gitb0d2ef3.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:cri-o-debuginfo | 0:1.24.1-11.rhaos4.11.gitb0d2ef3.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:cri-o-debugsource | 0:1.24.1-11.rhaos4.11.gitb0d2ef3.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:openshift | 0:4.11.0-202207082037.p0.g9546431.assembly.stream.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:openshift-hyperkube | 0:4.11.0-202207082037.p0.g9546431.assembly.stream.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:podman | 2:4.0.2-6.rhaos4.11.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:podman-catatonit | 2:4.0.2-6.rhaos4.11.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:podman-catatonit-debuginfo | 2:4.0.2-6.rhaos4.11.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:podman-debuginfo | 2:4.0.2-6.rhaos4.11.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:podman-debugsource | 2:4.0.2-6.rhaos4.11.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
| red hat:podman-docker | 2:4.0.2-6.rhaos4.11.el8 · Red Hat:openshift:4.11::el8 | Package registry (OSV) |
+20
Exploit status
No known public exploit
No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.
Research context
For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.
Timeline
From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.
No dated events beyond publication.
FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).
Patch and commit links
Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.
Credits
All researchersFinders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.
No credits in the CNA record.
Variant candidates
Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.
No nightly-computed relations.
Chain candidates
An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.
—
Bug bounty scope
No known public program.
Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).
Technical details
Attack conditions
- Someone with local access to the system can trigger it.
- A low-privileged account is enough.
- No user action is required.
- No special conditions are required; it is repeatable.
If successful
- Confidentiality
- high · data can be read
- Integrity
- high · data or configuration can be modified
- Availability
- high · the service can be disrupted
- Attack vector
- Local
- Attack complexity
- Low
- Privileges required
- Low
- User interaction
- None
- Scope
- Unchanged
- Confidentiality impact
- High
- Integrity impact
- High
- Availability impact
- High
Weakness class (CWE)
CWE-276 · Incorrect Default PermissionsCVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
nvd-primary
Attack context
MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.
Attack patterns (CAPEC)
Noroxi analysis
No Noroxi analysis for this record yet
We don't hand-write analysis for all 385,000+ vulnerabilities; that wouldn't be honest. For notable, high-impact vulnerabilities our team writes the mechanism, detection and remediation steps.
We use this product, ask for helpChange log
- Fix✗ → ✓
For records you follow, these changes also arrive as notifications. →
References
- github.com/opencontainers/runc/commit/d04de3a9b72d7a2455c1885fc75eb36d02cd17b5
- github.com/opencontainers/runc/releases/tag/v1.1.2
- github.com/opencontainers/runc/security/advisories/GHSA-f3fp-gc8g-vw66
- lists.debian.org/debian-lts-announce/2023/03/msg00023.html
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/AVPZBV7ISA7QKRPTC7ZXWKMIQI2HZEBB/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/D77CKD3AXPMU4PMQIQI5Q74SI4JATNND/
- lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/GPQU4YC4AAY54JDXGDQHJEYKSXXG5T2Y/
Vendor advisories and official records. Exploit/PoC links are deliberately left out.