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CVE-2026-33748

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 Docke
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:e53db245989ff1ab1b5d96147f19ba281f77d533e8e56dbc3dc4b6d10bfb7dd5
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 2 assertions

{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d8030fcdaa2e84362d3cd9e312edde666d24c54cc63f912d152f2a3f5da1bde3 · sha256:95d4ab359bda0573… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d8030fcdaa2e84362d3cd9e312edde666d24c54cc63f912d152f2a3f5da1bde3 · sha256:95d4ab359bda0573… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"buildkit","vendor":"moby","versions":[{"status":"affected","version":"< 0.28.1"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:d8030fcdaa2e84362d3cd9e312edde666d24c54cc63f912d152f2a3f5da1bde3 · sha256:95d4ab359bda0573… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"PRESENT","attackVector":"NETWORK","baseScore":8.2,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"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","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"NONE"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:d8030fcdaa2e84362d3cd9e312edde666d24c54cc63f912d152f2a3f5da1bde3 · sha256:95d4ab359bda0573… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-22","description":"CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d8030fcdaa2e84362d3cd9e312edde666d24c54cc63f912d152f2a3f5da1bde3 · sha256:95d4ab359bda0573… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-59","description":"CWE-59: Improper Link Resolution Before File Access ('Link Following')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:d8030fcdaa2e84362d3cd9e312edde666d24c54cc63f912d152f2a3f5da1bde3 · sha256:95d4ab359bda0573… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"name":"https://docs.docker.com/build/concepts/context/#url-fragments","tags":["x_refsource_MISC"],"url":"https://docs.docker.com/build/concepts/context/#url-fragments"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d8030fcdaa2e84362d3cd9e312edde666d24c54cc63f912d152f2a3f5da1bde3 · sha256:95d4ab359bda0573… · /containers/cna/references/1
{"name":"https://github.com/moby/buildkit/releases/tag/v0.28.1","tags":["x_refsource_MISC"],"url":"https://github.com/moby/buildkit/releases/tag/v0.28.1"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d8030fcdaa2e84362d3cd9e312edde666d24c54cc63f912d152f2a3f5da1bde3 · sha256:95d4ab359bda0573… · /containers/cna/references/2
{"name":"https://github.com/moby/buildkit/security/advisories/GHSA-4vrq-3vrq-g6gg","tags":["x_refsource_CONFIRM"],"url":"https://github.com/moby/buildkit/security/advisories/GHSA-4vrq-3vrq-g6gg"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:d8030fcdaa2e84362d3cd9e312edde666d24c54cc63f912d152f2a3f5da1bde3 · sha256:95d4ab359bda0573… · /containers/cna/references/0

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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