CVE-2026-33748Published

BuildKit Git URL subdir component can cause access to restricted files

Collected exploitation and prediction evidence

CISA KEV is observed exploitation evidence. FIRST EPSS is a dated prediction of exploitation in the next 30 days. Missing scores are unknown. This collector requests predictions only for explicit CVE aliases in the public NuGet archive; Microsoft release views retain their existing prediction scope.

No collected risk observation for these identifiers. This does not establish absence of exploitation or a zero probability.

cve-program · CVE-2026-33748

Published

BuildKit is a toolkit for converting source code to build artifacts in an efficient, expressive and repeatable manner. Prior to version 0.28.1, insufficient validation of Git URL fragment subdir components may allow access to files outside the checked-out Git repository root. Possible access is limited to files on the same mounted filesystem. The issue has been fixed in version v0.28.1 The issue affects only builds that use Git URLs with a subpath component. As a workaround, avoid building Dockerfiles from untrusted sources or using the subdir component from an untrusted Git repository where the subdir component could point to a symlink.

Source published: 27 Mar 2026 14:00:21 UTC
Source modified: 27 Mar 2026 19:58:28 UTC
Observed here: 23 Oct 2026 15:48:27 UTC
Source terms: CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: cve-program · CVE Program Terms of Use. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

euvd · EUVD-2026-16618

Published

EUVD source date text has no stated timezone and is retained without inventing a UTC instant. Related bulletin membership is not an alias, common cause or applicability claim. A missing vector with a zero score is treated as unrated. Complete vendor/product and underlying source evidence remains in the original JSON.

Original publisher date fields

datePublished: Mar 27, 2026, 2:00:21 PM

dateUpdated: Mar 27, 2026, 7:58:28 PM

21 related source bulletins · separate from aliases

openSUSE-SU-2026:20814-1: Security update for docker-stable

CVE-2026-33747 · CVE-2026-33748

RHSA-2026:26568: Red Hat Security Advisory: Red Hat OpenShift API for Data Protection

CVE-2026-25679 · CVE-2026-27137 · CVE-2026-32280 · CVE-2026-32281 · CVE-2026-32282 · CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-33810 · CVE-2026-34986

openSUSE-SU-2026:11075-1: docker-stable-24.0.9_ce-18.1 on GA media

CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-33814 · CVE-2026-33997 · CVE-2026-34040 · CVE-2026-39821 · CVE-2026-41567

RHSA-2026:37387: Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.22.0 security, enhancement & bug fix update

CVE-2024-25621 · CVE-2024-40635 · CVE-2024-45310 · CVE-2025-8766 · CVE-2025-21613 · CVE-2025-21614 · CVE-2025-22870 · CVE-2025-47911 · CVE-2025-52881 · CVE-2025-54410 · CVE-2025-58058 · CVE-2025-64329 · CVE-2025-66506 · CVE-2026-22772 · CVE-2026-23831 · CVE-2026-24117 · CVE-2026-25680 · CVE-2026-25681 · CVE-2026-25934 · CVE-2026-27136 · CVE-2026-27141 · CVE-2026-27903 · CVE-2026-33540 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-33814 · CVE-2026-34986 · CVE-2026-35172 · CVE-2026-35469 · CVE-2026-39821 · CVE-2026-39827 · CVE-2026-39828 · CVE-2026-39829 · CVE-2026-39830 · CVE-2026-39831 · CVE-2026-39832 · CVE-2026-39833 · CVE-2026-39834 · CVE-2026-39835 · CVE-2026-39883 · CVE-2026-41506 · CVE-2026-41567 · CVE-2026-41568 · CVE-2026-42502 · CVE-2026-42506 · CVE-2026-42508 · CVE-2026-44740 · CVE-2026-45571 · CVE-2026-46595 · CVE-2026-46597 · CVE-2026-46598

RHSA-2026:9440: Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.0.10

CVE-2026-25679 · CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748

RHSA-2026:51033: Red Hat Security Advisory: Red Hat OpenShift API for Data Protection

CVE-2024-25621 · CVE-2025-61726 · CVE-2025-61728 · CVE-2025-61729 · CVE-2025-66506 · CVE-2025-68121 · CVE-2026-25681 · CVE-2026-27136 · CVE-2026-32280 · CVE-2026-32281 · CVE-2026-32282 · CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-33810 · CVE-2026-33811 · CVE-2026-34986 · CVE-2026-39820 · CVE-2026-39821 · CVE-2026-39828 · CVE-2026-39829 · CVE-2026-39830 · CVE-2026-39831 · CVE-2026-39835 · CVE-2026-42306 · CVE-2026-42499 · CVE-2026-42508 · CVE-2026-44740 · CVE-2026-46595 · CVE-2026-46597 · CVE-2026-53488 · CVE-2026-53492

RHSA-2026:47388: Red Hat Security Advisory: multicluster engine for Kubernetes v2.10.4 security update

CVE-2025-58183 · CVE-2026-16242 · CVE-2026-17107 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-33811 · CVE-2026-34986 · CVE-2026-39828 · CVE-2026-39829 · CVE-2026-39830 · CVE-2026-39835 · CVE-2026-42508 · CVE-2026-44486 · CVE-2026-44487 · CVE-2026-44488 · CVE-2026-44492 · CVE-2026-44494 · CVE-2026-44495 · CVE-2026-44496 · CVE-2026-44740 · CVE-2026-44990 · CVE-2026-59869

WID-SEC-W-2026-0873: docker: Mehrere Schwachstellen

CVE-2026-33747 · CVE-2026-33748 · CVE-2026-33997 · CVE-2026-34040

RHSA-2026:46885: Red Hat Security Advisory: multicluster engine for Kubernetes v2.10.4 security update

RHSA-2026:9453: Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.2.4

CVE-2026-25679 · CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-34986

SUSE-SU-2026:2578-1: Security update for docker-stable

CVE-2026-33747 · CVE-2026-33748 · CVE-2026-33997 · CVE-2026-34040

RHSA-2026:30650: Red Hat Security Advisory: multicluster engine for Kubernetes v2.8.8 security update

CVE-2025-47914 · CVE-2025-58183 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-34986 · CVE-2026-35206 · CVE-2026-39821 · CVE-2026-44486 · CVE-2026-44487 · CVE-2026-44488 · CVE-2026-44492 · CVE-2026-44494 · CVE-2026-44495 · CVE-2026-44496 · CVE-2026-46595

RHSA-2026:70267: Red Hat Security Advisory: Red Hat Quay 3.14.9

CVE-2026-4427 · CVE-2026-6322 · CVE-2026-9277 · CVE-2026-10143 · CVE-2026-12143 · CVE-2026-13149 · CVE-2026-13676 · CVE-2026-14257 · CVE-2026-15792 · CVE-2026-15927 · CVE-2026-16221 · CVE-2026-18255 · CVE-2026-32591 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-33818 · CVE-2026-39820 · CVE-2026-39821 · CVE-2026-39822 · CVE-2026-39828 · CVE-2026-39829 · CVE-2026-39830 · CVE-2026-39831 · CVE-2026-39832 · CVE-2026-39835 · CVE-2026-42151 · CVE-2026-42154 · CVE-2026-42499 · CVE-2026-42504 · CVE-2026-42508 · CVE-2026-44432 · CVE-2026-44486 · CVE-2026-44487 · CVE-2026-44488 · CVE-2026-44492 · CVE-2026-44494 · CVE-2026-44495 · CVE-2026-44496 · CVE-2026-44705 · CVE-2026-44990 · CVE-2026-46595 · CVE-2026-46597 · CVE-2026-48526 · CVE-2026-49477 · CVE-2026-54058 · CVE-2026-54060 · CVE-2026-55379 · CVE-2026-55380 · CVE-2026-56852 · CVE-2026-56853 · CVE-2026-56858 · CVE-2026-56859 · CVE-2026-56860 · CVE-2026-56862 · CVE-2026-57231 · CVE-2026-59197 · CVE-2026-59199 · CVE-2026-59200 · CVE-2026-59204 · CVE-2026-59205 · CVE-2026-59869 · CVE-2026-59885 · CVE-2026-59886 · CVE-2026-67213 · CVE-2026-67214 · CVE-2026-67313 · CVE-2026-67314 · CVE-2026-67320 · CVE-2026-67321 · CVE-2026-69152 · CVE-2026-69153 · CVE-2026-73086 · CVE-2026-73088 · CVE-2026-73089 · CVE-2026-84375

SUSE-SU-2026:21851-1: Security update for docker-stable

CVE-2026-33747 · CVE-2026-33748

openSUSE-SU-2026:10651-1: trivy-0.70.0-1.1 on GA media

CVE-2025-69725 · CVE-2026-25934 · CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-34986 · CVE-2026-39984

SUSE-SU-2026:2120-1: Security update for docker-stable

CVE-2026-33747 · CVE-2026-33748

RHSA-2026:10125: Red Hat Security Advisory: RHTAS 1.3.4 - Red Hat Trusted Artifact Signer Release

CVE-2025-68121 · CVE-2026-25679 · CVE-2026-27137 · CVE-2026-33186 · CVE-2026-33211 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-34986

RHSA-2026:9448: Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.1.7

CVE-2026-25679 · CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-34986

RHSA-2026:29854: Red Hat Security Advisory: Red Hat OpenShift API for Data Protection

CVE-2025-68121 · CVE-2026-25679 · CVE-2026-27137 · CVE-2026-32280 · CVE-2026-32281 · CVE-2026-32282 · CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-33810 · CVE-2026-34986

openSUSE-SU-2026:20809-1: Security update for trivy

CVE-2025-64702 · CVE-2025-69725 · CVE-2026-25934 · CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-34986 · CVE-2026-39984 · CVE-2026-41506

RHSA-2026:57013: Red Hat Security Advisory: Red Hat OpenShift Data Foundation 4.20.17 security, enhancement & bug fix update

CVE-2025-61726 · CVE-2026-6321 · CVE-2026-6322 · CVE-2026-6734 · CVE-2026-9697 · CVE-2026-12143 · CVE-2026-12151 · CVE-2026-13149 · CVE-2026-13676 · CVE-2026-25681 · CVE-2026-27136 · CVE-2026-33186 · CVE-2026-33747 · CVE-2026-33748 · CVE-2026-34986 · CVE-2026-44740 · CVE-2026-45736 · CVE-2026-48779 · CVE-2026-53488 · CVE-2026-53489 · CVE-2026-53492 · CVE-2026-59869

Source published: Mar 27, 2026, 2:00:21 PM (timezone not stated)
Source modified: Mar 27, 2026, 7:58:28 PM (timezone not stated)
Observed here: 1 Nov 2026 05:15:48 UTC
Source terms: ENISA EUVD · source terms and attribution apply

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: euvd · ENISA EUVD · source terms and attribution apply. Source text is retained; field grouping and change labels are provided by ChangeIntel.

EUVD CVSS 4.0 · 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

nvd · CVE-2026-33748

Published

NVD analysis and CPE criteria are source context, not proof that a package or your environment is affected. Complete affected data, logical configurations and SSVC are retained in the original JSON.

Source analysis status: Analyzed

Weakness classifications: CWE-22 · CWE-59

Original publisher date fields

published: 2026-03-27T15:16:57.127

lastModified: 2026-10-26T21:10:00.170

1 source CPE criteria · context only

cpe:2.3:a:mobyproject:buildkit:*:*:*:*:*:*:*:*

The original JSON retains the logical configuration operators, exclusions and version bounds.

Source published: 27 Mar 2026 15:16:57 UTC
Source modified: 26 Oct 2026 21:10:00 UTC
Observed here: 27 Oct 2026 09:02:55 UTC
Source terms: NIST NVD usage terms; underlying source attribution retained

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: nvd · NIST NVD usage terms; underlying source attribution retained. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS 4.0 · [email protected] · Secondary · 8.2 CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/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

CVSS 3.1 · [email protected] · Primary · 7.5 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

osv · GHSA-4vrq-3vrq-g6gg

Published

### Impact Insufficient validation of Git URL fragment subdir components (`<url>#<ref>:<subdir>`, [docs](https://docs.docker.com/build/concepts/context/#url-fragments)) may allow access to files outside the checked-out Git repository root. Possible access is limited to files on the same mounted filesystem. ### Patches The issue has been fixed in version v0.28.1 ### Workarounds The issue affects only builds that use Git URLs with a subpath component. Avoid building Dockerfiles from untrusted sources or using the subdir component from an untrusted Git repository where the subdir component could point to a symlink.

Source published: 26 Mar 2026 18:27:49 UTC
Source modified: 10 Sep 2026 03:50:59 UTC
Observed here: 24 Oct 2026 13:19:41 UTC
Source terms: GitHub Advisory Database · CC-BY-4.0

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · GitHub Advisory Database · CC-BY-4.0. Source text is retained; field grouping and change labels are provided by ChangeIntel.

CVSS_V3 · CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS_V4 · CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N

Publisher rating · HIGH

osv · GO-2026-4859

Published

BuildKit Git URL subdir component can cause access to restricted files in github.com/moby/buildkit

Source published: 27 Mar 2026 18:39:44 UTC
Source modified: 28 Mar 2026 15:59:16 UTC
Observed here: 24 Oct 2026 13:19:41 UTC
Source terms: OSV · upstream source license applies

Original source record · Cite this exact observation · Complete original publisher JSON

This view projects the publisher's source fields for reading; the original JSON retains additional fields and CVE enrichment containers. Attribution: osv · OSV · upstream source license applies. Source text is retained; field grouping and change labels are provided by ChangeIntel.