CVE-2024-23652· NVD / CVE Program· CNA GitHub_M

BuildKit possible host system access from mount stub cleaner

Noroxi assessment

Priority: Monitor (action score 37/100)

Public proof-of-concept code exists (GitHub); there is no record of exploitation in the wild.
Probability of exploitation in the next 30 days: 2.4% (FIRST EPSS); higher than 84.1% of all records.
Anyone who can reach it over the internet can trigger it. No account or password is required. No user action is required. No special conditions are required; it is repeatable.
According to CISA the attack is automatable: targets can be found by mass scanning.
Fixed version: github.com/moby/buildkit (Go) 0.12.5; buildkit (openSUSE:Tumbleweed) 0.12.5-1.1; docker (openSUSE:Tumbleweed) 24.0.7_ce-3.1.

Low priority for now. Upgrade to github.com/moby/buildkit (Go) 0.12.5; buildkit (openSUSE:Tumbleweed) 0.12.5-1.1; docker (openSUSE:Tumbleweed) 24.0.7_ce-3.1 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. A malicious BuildKit frontend or Dockerfile using RUN --mount could trick the feature that removes empty files created for the mountpoints into removing a file outside the container, from the host system. The issue has been fixed in v0.12.5. Workarounds include avoiding using BuildKit frontends from an untrusted source or building an untrusted Dockerfile containing RUN --mount feature.

CriticalCVSS 9.1 · v3.1—Proof of concept Fix available

Published: Jan 31, 2024
Updated: Jun 17, 2026
EPSS: 2.4% · 84th percentile
CWE: CWE-22

Report tools

JSON

Action score

Monitor

Low priority for now.

CVSS: 36 / 40 · 9.1 / 10
CISA KEV: 0 / 30 · Not listed
EPSS: 1 / 30 · 2.4%

CISA SSVC decision

Exploitation: none
Automatable: yes
Technical impact: partial

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD: 9.1
CNA · GitHub_M: 10.0; 0.9 point gap

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/A:H

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

Get told when this record changes

Not in KEV: no record of exploitation in the wild
Proof of concept exists, no weaponized module
A fix has been released

If any of these changes, we'll tell you in the daily email digest.

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

Vendor	Product	CPE
mobyproject	buildkit	cpe:2.3:a:mobyproject:buildkit

Using buildkit? 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.

mobyproject buildkitbefore 0.12.5

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.

moby buildkit
- < 0.12.5affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

Ecosystem	Package	Affected range	Fix
Go	github.com/moby/buildkit	before 0.12.5	0.12.5
openSUSE:Tumbleweed	buildkit	before 0.12.5-1.1	0.12.5-1.1
openSUSE:Tumbleweed	docker	before 24.0.7_ce-3.1	24.0.7_ce-3.1
openSUSE:Tumbleweed	singularity-ce	before 4.1.3-1.1	4.1.3-1.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	buildah	before 1.35.4-150300.8.25.1	1.35.4-150300.8.25.1
SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	buildah	before 1.35.4-150300.8.25.1	1.35.4-150300.8.25.1
SUSE:Linux Enterprise Micro 5.3	docker	before 24.0.7_ce-150000.193.1	24.0.7_ce-150000.193.1
SUSE:Linux Enterprise Micro 5.3	docker	before 24.0.7_ce-150000.193.1	24.0.7_ce-150000.193.1
SUSE:Linux Enterprise Micro 5.3	docker	before 25.0.6_ce-150000.207.1	25.0.6_ce-150000.207.1
SUSE:Linux Enterprise Micro 5.3	docker	before 25.0.6_ce-150000.207.1	25.0.6_ce-150000.207.1
SUSE:Linux Enterprise Module for Containers 12	docker	before 25.0.5_ce-98.112.1	25.0.5_ce-98.112.1
SUSE:Linux Enterprise Module for Containers 12	docker	before 24.0.7_ce-98.106.1	24.0.7_ce-98.106.1
SUSE:Linux Micro 6.0	buildkit	before 0.12.5-1.1	0.12.5-1.1
SUSE:Linux Micro 6.0	docker	before 25.0.6_ce-1.1	25.0.6_ce-1.1

Same product

mobyproject: all records

Other highest-scoring records for the same primary product.

CVE-2024-23653BuildKit interactive containers API does not validate entitlements check
40Plan
CVE-2026-33747BuildKit vulnerable to malicious frontend causing file escape outside of storage root
39Monitor
CVE-2026-33748BuildKit Git URL subdir component can cause access to restricted files
32Monitor
CVE-2026-15793Git source checkout from a bundle file could lead to command injection
29Monitor
CVE-2024-23651BuildKit possible race condition with accessing subpaths from cache mounts
29Monitor
CVE-2026-15789Malicious client can bypass destination directory validation on local sources upload
27Monitor

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
Go:github.com/moby/buildkit	0.12.5	Package registry (OSV)
opensuse:buildkit	0.12.5-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
opensuse:docker	24.0.7_ce-150000.193.1 · openSUSE:Leap Micro 5.3	Package registry (OSV)
opensuse:singularity-ce	4.1.3-1.1 · openSUSE:Tumbleweed	Package registry (OSV)
suse:buildah	1.35.4-150300.8.25.1 · SUSE:Linux Enterprise High Performance Computing 15 SP3-LTSS	Package registry (OSV)
suse:buildkit	0.12.5-1.1 · SUSE:Linux Micro 6.0	Package registry (OSV)
suse:docker	24.0.7_ce-150000.193.1 · SUSE:Linux Enterprise Micro 5.3	Package registry (OSV)

Exploit status

Proof of concept available

A public proof of concept or detection signature exists. Exploit knowledge is out there; don't delay patching.

Evidence

Proof-of-concept repository on GitHub ×2

Noroxi does not host or link to exploit code. Metasploit module names and Nuclei template ids are shown (names, not code); Exploit-DB entries and PoC repositories are given as counts only.

Public exploit evidence
Source	Kind	Date
Proof-of-concept repository on GitHub	stars:2	2024-03-01
Proof-of-concept repository on GitHub	stars:0	2026-03-19

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.

PublishedJan 31, 2024
First PoCMar 1, 2024+29 d
TodayOct 16, 2026+989 d

EPSS, last 120 days

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.

moby/buildkitPR 4603

Credits

All researchers

Finders, 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

Anyone who can reach it over the internet can trigger it.
No account or password is required.
No user action is required.
No special conditions are required; it is repeatable.

If successful

Confidentiality: none
Integrity: high · data or configuration can be modified
Availability: high · the service can be disrupted

Attack vector: Network
Attack complexity: Low
Privileges required: None
User interaction: None
Scope: Unchanged
Confidentiality impact: None
Integrity impact: High
Availability impact: High

Weakness class (CWE)

CWE-22 · Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H

nvd-primary

Root cause

A user-supplied file name is joined with the allowed directory, but the result is never checked to confirm it is still inside that directory.

The bug in code

The whole CWE-22 class

A representative example of this vulnerability class. Not the vendor's source code; it shows the faulty pattern and its fix.

Vulnerable

1const file = path.join(ROOT, req.query.name);2res.sendFile(file);

Fixed

1const file = path.resolve(ROOT, req.query.name);2if (!file.startsWith(ROOT + path.sep)) {3  return res.sendStatus(400);4}5res.sendFile(file);

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)

ATT&CK techniques

—

Change log

Fix✗ → ✓Sep 28, 2026, 10:46 PM UTC

For records you follow, these changes also arrive as notifications. →

References

github.com/moby/buildkit/pull/4603

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records

Noroxi analysis

What does it mean in your environment?

We use this product, ask for help

Data sources and verification

CNA: GitHub_M

CVE.org (CNA)Jun 17, 2025, 9:29 PM UTC
CISA ADPJun 17, 2025, 9:29 PM UTC
NVDJun 17, 2026, 3:13 AM UTC
FIRST EPSSOct 15, 2026, 12:00 AM UTC
OSV / GHSAOct 16, 2026, 3:22 AM UTC
PoC-in-GitHubOct 16, 2026, 3:18 AM UTC

Each line is when that source was last processed for this record.

BuildKit possible host system access from mount stub cleaner

Noroxi assessment

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Affected systems

Is your version affected?

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Affected versions

Versions reported by the vendor

Package-level exposure

Same product

Remediation

Which version to upgrade to

Exploit status

Research context

Timeline

Patch and commit links

Credits

Variant candidates

Chain candidates

Technical details

Attack conditions

If successful

Root cause

The bug in code

Attack context

Change log

References