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CVE-2026-33221

Nhost is an open source Firebase alternative with GraphQL. Prior to version 0.12.0, the storage service's file upload handler trusts the client-provided Content-Type header without performing server-side MIME type detection. This allows an attacker to upload files with an arbitrary MIME type, bypassing any MIME-type-based restrictions configured on storage buckets. This issue has been patched in version 0.12.0.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:12da725d85524f6810e5bb4aaa343d2cb903193bf270ae66995fcaab56c90584
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-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-343","description":"CWE-343: Predictable Value Range from Previous Values","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"nhost","vendor":"nhost","versions":[{"status":"affected","version":"< 0.12.0"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"HIGH","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":2.1,"baseSeverity":"LOW","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"ACTIVE","vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:A/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"LOW"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-345","description":"CWE-345: Insufficient Verification of Data Authenticity","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-343","description":"CWE-343: Predictable Value Range from Previous Values","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /containers/cna/problemTypes/1/descriptions/0

Source references

4 source assertions
{"name":"https://github.com/nhost/nhost/commit/c4bd53f042d7f568e567e18e2665af81660fce85","tags":["x_refsource_MISC"],"url":"https://github.com/nhost/nhost/commit/c4bd53f042d7f568e567e18e2665af81660fce85"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /containers/cna/references/2
{"name":"https://github.com/nhost/nhost/pull/4018","tags":["x_refsource_MISC"],"url":"https://github.com/nhost/nhost/pull/4018"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /containers/cna/references/1
{"name":"https://github.com/nhost/nhost/releases/tag/storage%400.12.0","tags":["x_refsource_MISC"],"url":"https://github.com/nhost/nhost/releases/tag/storage%400.12.0"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /containers/cna/references/3
{"name":"https://github.com/nhost/nhost/security/advisories/GHSA-g9f6-9775-hffm","tags":["x_refsource_CONFIRM"],"url":"https://github.com/nhost/nhost/security/advisories/GHSA-g9f6-9775-hffm"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:c8abbaba8a77bf9aae3c3d9d8df09b15916fe4481bda04166f92cf6494861126 · sha256:55db3d83cf1b570a… · /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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