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CVE-2026-31252

CosyVoice thru commit 6e01309e01bc93bbeb83bdd996b1182a81aaf11e (2025-30-21) contains an insecure deserialization vulnerability (CWE-502) in its model loading component. The framework uses torch.load() to load model weight files (e.g., llm.pt, flow.pt, hift.pt) without enabling the security-restrictive weights_only=True parameter. This allows the deserialization of arbitrary Python objects via the pickle module. An attacker can exploit this by providing a malicious model directory containing spec
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:9dd06d1f27a9661432e93706fc14e53660f19f3472b7f8d3f9640787d191d25e
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

cwe · 3 assertions

{"cweId":"CWE-915","description":"CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/adp/0/problemTypes/1/descriptions/0

{"cweId":"CWE-94","description":"CWE-94 Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/adp/0/problemTypes/0/descriptions/0

{"description":"n/a","lang":"en","type":"text"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/cna/problemTypes/0/descriptions/0

Affected products and versions

1 source assertion
{"product":"n/a","vendor":"n/a","versions":[{"status":"affected","version":"n/a"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackVector":"LOCAL","availabilityImpact":"LOW","baseScore":5.7,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"CHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:L","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/adp/0/metrics/0/cvssV3_1

CWE assertions

3 source assertions
{"cweId":"CWE-915","description":"CWE-915 Improperly Controlled Modification of Dynamically-Determined Object Attributes","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/adp/0/problemTypes/1/descriptions/0
{"cweId":"CWE-94","description":"CWE-94 Improper Control of Generation of Code ('Code Injection')","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/adp/0/problemTypes/0/descriptions/0
{"description":"n/a","lang":"en","type":"text"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/cna/problemTypes/0/descriptions/0

Source references

2 source assertions
{"url":"https://github.com/FunAudioLLM/CosyVoice"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/cna/references/0
{"url":"https://www.notion.so/CVE-2026-31252-35d1e139318881ef8acfcd877a432569"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:44b6c2d8fb27a49e6f3875a04fd1bd76295f70375c5d1ffbbfb1678da8f25ab0 · sha256:761d51f46ae009fb… · /containers/cna/references/1

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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