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CVE-2025-6203

A malicious user may submit a specially-crafted complex payload that otherwise meets the default request size limit which results in excessive memory and CPU consumption of Vault. This may lead to a timeout in Vault’s auditing subroutine, potentially resulting in the Vault server to become unresponsive. This vulnerability, CVE-2025-6203, is fixed in Vault Community Edition 1.20.3 and Vault Enterprise 1.20.3, 1.19.9, 1.18.14, and 1.16.25.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:978b788612a91e6a13c907ea39242cf53fec88affa67219062ab8643e0e93bfa
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Vault Enterprise","repo":"https://github.com/hashicorp/vault","vendor":"HashiCorp","versions":[{"changes":[{"at":"1.20.5","status":"unaffected"},{"at":"1.19.11","status":"unaffected"},{"at":"1.16.27","status":"unaffected"}],"lessThan":"1.21.2","status":"affected","version":"1.15.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd91323492cdc8eeed250ebc03c3d5c12f31bcd3b715b47baae6314e6527e57 · sha256:f071fbfec23a252a… · /containers/cna/affected/1

{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Vault","repo":"https://github.com/hashicorp/vault","vendor":"HashiCorp","versions":[{"lessThan":"1.21.0","status":"affected","version":"1.15.0","versionType":"semver"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd91323492cdc8eeed250ebc03c3d5c12f31bcd3b715b47baae6314e6527e57 · sha256:f071fbfec23a252a… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Vault Enterprise","repo":"https://github.com/hashicorp/vault","vendor":"HashiCorp","versions":[{"changes":[{"at":"1.20.5","status":"unaffected"},{"at":"1.19.11","status":"unaffected"},{"at":"1.16.27","status":"unaffected"}],"lessThan":"1.21.2","status":"affected","version":"1.15.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd91323492cdc8eeed250ebc03c3d5c12f31bcd3b715b47baae6314e6527e57 · sha256:f071fbfec23a252a… · /containers/cna/affected/1
{"defaultStatus":"unaffected","platforms":["64 bit","32 bit","x86","ARM","MacOS","Windows","Linux"],"product":"Vault","repo":"https://github.com/hashicorp/vault","vendor":"HashiCorp","versions":[{"lessThan":"1.21.0","status":"affected","version":"1.15.0","versionType":"semver"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ffd91323492cdc8eeed250ebc03c3d5c12f31bcd3b715b47baae6314e6527e57 · sha256:f071fbfec23a252a… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.5,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:ffd91323492cdc8eeed250ebc03c3d5c12f31bcd3b715b47baae6314e6527e57 · sha256:f071fbfec23a252a… · /containers/cna/metrics/0/cvssV3_1

CWE assertions

1 source assertion
{"cweId":"CWE-770","description":"CWE-770: Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:ffd91323492cdc8eeed250ebc03c3d5c12f31bcd3b715b47baae6314e6527e57 · sha256:f071fbfec23a252a… · /containers/cna/problemTypes/0/descriptions/0

Source references

1 source assertion
{"url":"https://discuss.hashicorp.com/t/hcsec-2025-24-vault-denial-of-service-though-complex-json-payloads/76393"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ffd91323492cdc8eeed250ebc03c3d5c12f31bcd3b715b47baae6314e6527e57 · sha256:f071fbfec23a252a… · /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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