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CVE-2026-65920

Diffusers through 0.39.0, fixed in commit cee298c, contains a path traversal vulnerability in the _get_checkpoint_shard_files function that allows attackers to read arbitrary files by supplying malicious weight_map values in model index JSON. Attackers can use ../ sequences or absolute paths in weight_map entries to escape the model directory and read safetensors files outside the intended location during model loading.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:8146d5f980d3a6d12c9c440c72a5c0f15bb1015ad760c467a8f89a38a4fcc663
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cvss · 2 assertions

{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/metrics/1/cvssV3_1

{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpa…

  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/metrics/0/cvssV4_0

Affected products and versions

1 source assertion
{"defaultStatus":"unaffected","packageURL":"pkg:pypi/diffusers","product":"diffusers","repo":"https://github.com/huggingface/diffusers","vendor":"huggingface","versions":[{"lessThanOrEqual":"0.39.0","status":"affected","version":"0","versionType":"semver"},{"status":"unaffected","version":"cee298c1f37c439a9a408396b8283a921238a1c6","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/affected/0

Provider-owned CVSS observations

2 source assertions
{"metric":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/metrics/1/cvssV3_1
{"metric":{"Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","Safety":"NOT_DEFINED","attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":5.3,"baseSeverity":"MEDIUM","exploitMaturity":"NOT_DEFINED","privilegesRequired":"NONE","providerUrgency":"NOT_DEFINED","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"PASSIVE","valueDensity":"NOT_DEFINED","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"NONE","vulnConfidentialityImpa…
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

1 source assertion
{"cweId":"CWE-22","description":"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:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/problemTypes/0/descriptions/0

Source references

4 source assertions
{"name":"Patch Commit","tags":["patch"],"url":"https://github.com/huggingface/diffusers/commit/cee298c1f37c439a9a408396b8283a921238a1c6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/references/2
{"name":"Researcher Disclosure","tags":["technical-description","exploit","issue-tracking"],"url":"https://github.com/huggingface/diffusers/issues/14175"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/references/0
{"name":"Pull Request","tags":["issue-tracking","patch"],"url":"https://github.com/huggingface/diffusers/pull/14182"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/references/1
{"tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/diffusers-path-traversal-via-weight-map-arbitrary-file-read"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:b149d5b57f1418b5d4c2365a5b8c558aceab8d3dae187984b845f86de629da9f · sha256:77db9bf76fab65ab… · /containers/cna/references/3

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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