CVE-2026-33748

HIGHNVD 7.57.5—
EchelonGraph scoreMEDIUM confidence

This high-severity CVE scores 7.5 under NVD CVSS v3. EPSS exploit probability: 0.5%, top 62% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).

Triggered by: NVD CVSS baseline
Sources: epss, nvd
7.5EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 0%CVSS: 7.5Exploit: None knownExposed: 0

A fix is available — apply it.

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.

CVSS v3
7.5
EG Score
7.5(medium)
EG Risk
34(Track)
EG Risk 34/100SSVC: Track

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity75% × 45%
Exploitation0% × 40%
Automatability0% × 15%
Action: Routine — remediate on your standard cadence.
EPSS PROB
0%
EPSS %ILE
39%
KEV
Not listed

Published

March 27, 2026

Last Modified

June 17, 2026

Advisory Details (3)

Auto-updated Aug 2, 2026
Patch available. Sources: github_release, github.
github Patch Available

Git URL subdir component can cause access to restricted files · Advisory · moby/buildkit · GitHub

Affected: version v0.28.1

https://github.com/moby/buildkit/security/advisories/GHSA-4vrq-3vrq-g6gg
github_release Patch Available

v0.28.1

Patch available: moby/buildkit v0.28.1

https://github.com/moby/buildkit/releases/tag/v0.28.1
generic

Build context | Docker Docs

https://docs.docker.com/build/concepts/context/#url-fragments

Vendor Advisories for CVE-2026-33748(12)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Patch Availability(11)

Vendor / EcosystemFixed in / PatchReleasedSource
redhatoadp/oadp-mustgather-rhel9:17851773592026-08-06redhat
redhatmulticluster-engine/must-gather-rhel9:17848498672026-07-28redhat
redhatodf4/rook-ceph-rhel9-operator:17829342842026-07-09redhat
redhatmulticluster-engine/must-gather-rhel9:17821587982026-06-28redhat
redhatoadp/oadp-mustgather-rhel9:17797700492026-06-25redhat
redhatoadp/oadp-mustgather-rhel9:17797700572026-06-17redhat
ubuntudocker.io (29.1.3-0ubuntu3~24.04.2) @ noble2026-06-11ubuntu
redhatrhtas/client-server-rhel9:17763390992026-04-23redhat
redhatopenshift-service-mesh/istio-proxyv2-rhel9:17762403922026-04-21redhat
redhatopenshift-service-mesh/istio-proxyv2-rhel9:17762915402026-04-21redhat
redhatopenshift-service-mesh/istio-proxyv2-rhel9:17763154662026-04-21redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Affected Packages

(5 across 5 ecosystems)
Debian:11(1)
PackageVulnerable rangeFixed inDependents
docker.io20.10.10+dfsg1-1 ... 28.5.2+dfsg4-3 (61 versions)——
Debian:12(1)
PackageVulnerable rangeFixed inDependents
docker.io20.10.24+dfsg1-1 ... 28.5.2+dfsg4-4 (46 versions)——
Debian:13(1)
PackageVulnerable rangeFixed inDependents
docker.io26.1.5+dfsg1-926.1.5+dfsg1-9+deb13u1—
Debian:14(1)
PackageVulnerable rangeFixed inDependents
docker.io26.1.5+dfsg1-10 ... 28.5.2+dfsg4-2 (19 versions)28.5.2+dfsg4-3—
Go(1)
PackageVulnerable rangeFixed inDependents
github.com/moby/buildkit—0.28.1—

Weakness Classification(2)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Additional Vendor Advisories

(1)

Vendors that published advisories for this CVE beyond the curated set above. Broader coverage but minimal per-row detail — click through for the original advisory.

Data Freshness Timeline

(refreshed 8× in last 7d / 31× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

Showing the most recent 100 of 194 total refreshes for this CVE.

  1. 2026-09-18 19:28 UTCEPSS rescore
  2. 2026-09-18 19:28 UTCEPSS rescore
  3. 2026-09-17 19:30 UTCEPSS rescore
  4. 2026-09-16 14:08 UTCEPSS rescore
  5. 2026-09-16 05:15 UTCEPSS rescore
  6. 2026-09-15 03:11 UTCEPSS rescore
  7. 2026-09-13 16:47 UTCEPSS rescore
  8. 2026-09-12 15:01 UTCEPSS rescore
  9. 2026-09-11 14:53 UTCEPSS rescore
  10. 2026-09-11 09:37 UTCEPSS rescore
  11. 2026-09-10 09:34 UTCEPSS rescore
  12. 2026-09-08 22:00 UTCEPSS rescore
  13. 2026-09-07 16:01 UTCEPSS rescore
  14. 2026-09-06 13:47 UTCEPSS rescore
  15. 2026-09-04 05:06 UTCEPSS rescore
  16. 2026-09-02 14:11 UTCEPSS rescore
  17. 2026-09-02 13:14 UTCOSV refresh
  18. 2026-09-01 13:53 UTCEPSS rescore
  19. 2026-09-01 04:39 UTCEPSS rescore
  20. 2026-09-01 04:39 UTCEPSS rescore
  21. 2026-08-30 19:17 UTCEPSS rescore
  22. 2026-08-30 01:22 UTCEPSS rescore
  23. 2026-08-28 21:41 UTCEPSS rescore
  24. 2026-08-27 14:25 UTCEPSS rescore
  25. 2026-08-26 14:46 UTCEPSS rescore
Show 75 more
  1. 2026-08-25 13:49 UTCEPSS rescore
  2. 2026-08-24 14:17 UTCEPSS rescore
  3. 2026-08-23 00:19 UTCEPSS rescore
  4. 2026-08-21 23:49 UTCEPSS rescore
  5. 2026-08-20 22:55 UTCEPSS rescore
  6. 2026-08-20 22:55 UTCEPSS rescore
  7. 2026-08-19 17:03 UTCEPSS rescore
  8. 2026-08-18 13:48 UTCEPSS rescore
  9. 2026-08-17 13:47 UTCEPSS rescore
  10. 2026-08-16 14:56 UTCEPSS rescore
  11. 2026-08-16 10:00 UTCEG score recompute
  12. 2026-08-16 10:00 UTCVendor advisory
  13. 2026-08-16 02:14 UTCEPSS rescore
  14. 2026-08-15 01:30 UTCEPSS rescore
  15. 2026-08-14 19:25 UTCVendor advisory
  16. 2026-08-14 06:19 UTCEG score recompute
  17. 2026-08-14 06:19 UTCVendor advisory
  18. 2026-08-13 22:00 UTCEPSS rescore
  19. 2026-08-12 20:37 UTCEG score recompute
  20. 2026-08-12 20:37 UTCVendor advisory
  21. 2026-08-12 13:50 UTCEPSS rescore
  22. 2026-08-11 20:45 UTCEG score recompute
  23. 2026-08-11 20:45 UTCVendor advisory
  24. 2026-08-11 03:48 UTCEG score recompute
  25. 2026-08-11 03:48 UTCVendor advisory
  26. 2026-08-11 00:00 UTCEPSS rescore
  27. 2026-08-10 07:49 UTCVendor advisory
  28. 2026-08-09 18:50 UTCEG score recompute
  29. 2026-08-09 18:50 UTCVendor advisory
  30. 2026-08-09 13:46 UTCEPSS rescore
  31. 2026-08-09 05:52 UTCEG score recompute
  32. 2026-08-09 05:52 UTCVendor advisory
  33. 2026-08-08 16:37 UTCEPSS rescore
  34. 2026-08-08 05:17 UTCEG score recompute
  35. 2026-08-08 05:17 UTCVendor advisory
  36. 2026-08-07 16:19 UTCVendor advisory
  37. 2026-08-06 18:43 UTCEG score recompute
  38. 2026-08-06 18:43 UTCVendor advisory
  39. 2026-08-06 13:46 UTCEPSS rescore
  40. 2026-08-06 00:47 UTCEG score recompute
  41. 2026-08-06 00:47 UTCVendor advisory
  42. 2026-08-05 19:17 UTCEPSS rescore
  43. 2026-08-04 15:10 UTCEPSS rescore
  44. 2026-08-04 10:38 UTCEPSS rescore
  45. 2026-08-03 23:09 UTCEG score recompute
  46. 2026-08-03 23:09 UTCVendor advisory
  47. 2026-08-03 10:36 UTCEPSS rescore
  48. 2026-08-02 15:12 UTCEG score recompute
  49. 2026-08-02 15:12 UTCVendor advisory
  50. 2026-08-02 02:27 UTCEPSS rescore
  51. 2026-08-01 04:16 UTCEPSS rescore
  52. 2026-07-30 16:28 UTCEPSS rescore
  53. 2026-07-30 01:30 UTCEPSS rescore
  54. 2026-07-27 14:13 UTCEPSS rescore
  55. 2026-07-26 14:54 UTCEPSS rescore
  56. 2026-07-26 14:54 UTCEPSS rescore
  57. 2026-07-25 14:18 UTCEPSS rescore
  58. 2026-07-25 14:18 UTCEPSS rescore
  59. 2026-07-24 14:17 UTCEPSS rescore
  60. 2026-07-24 14:17 UTCEPSS rescore
  61. 2026-07-23 14:18 UTCEPSS rescore
  62. 2026-07-23 14:18 UTCEPSS rescore
  63. 2026-07-23 03:09 UTCEG score recompute
  64. 2026-07-22 14:08 UTCEPSS rescore
  65. 2026-07-21 15:24 UTCEPSS rescore
  66. 2026-07-20 17:08 UTCEPSS rescore
  67. 2026-07-19 14:31 UTCEPSS rescore
  68. 2026-07-19 02:29 UTCEPSS rescore
  69. 2026-07-18 10:04 UTCEPSS rescore
  70. 2026-07-17 05:24 UTCOSV refresh
  71. 2026-07-16 17:03 UTCEPSS rescore
  72. 2026-07-15 16:57 UTCEPSS rescore
  73. 2026-07-15 16:57 UTCEPSS rescore
  74. 2026-07-15 02:00 UTCEPSS rescore
  75. 2026-07-13 22:30 UTCEPSS rescore

Related CVEs(same vendor + same CWE)

Frequently asked(5)

What is CVE-2026-33748?
CVE-2026-33748 is a high vulnerability published on March 27, 2026. 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…
When was CVE-2026-33748 disclosed?
CVE-2026-33748 was first published in the National Vulnerability Database on March 27, 2026, with the most recent update on June 17, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-33748 actively exploited?
CVE-2026-33748 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 0% probability of exploitation in the next 30 days, which ranks it in the top 60.6% of all scored CVEs.
What is the CVSS score of CVE-2026-33748?
CVE-2026-33748 has a CVSS v3 base score of 7.5 (NVD).
How do I remediate CVE-2026-33748?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-33748, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

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