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CVE-2025-61928

Better Auth is an authentication and authorization library for TypeScript. In versions prior to 1.3.26, unauthenticated attackers can create or modify API keys for any user by passing that user's id in the request body to the `api/auth/api-key/create` route. `session?.user ?? (authRequired ? null : { id: ctx.body.userId })`. When no session exists but `userId` is present in the request body, `authRequired` becomes false and the user object is set to the attacker-controlled ID. Server-only field
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:615d86b0bbc1d283592b36361a04bd1f02a073d5cdc429a01604af9ee4c1965e
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-285","description":"CWE-285: Improper Authorization","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4041cc04617f36a99dd837fe82019cba555f8e337d34a0fea9693ffd8613fdb5 · sha256:8dbd709acbfdf3d2… · /containers/cna/problemTypes/0/descriptions/0

{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}

  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4041cc04617f36a99dd837fe82019cba555f8e337d34a0fea9693ffd8613fdb5 · sha256:8dbd709acbfdf3d2… · /containers/cna/problemTypes/1/descriptions/0

Affected products and versions

1 source assertion
{"product":"better-auth","vendor":"better-auth","versions":[{"status":"affected","version":"< 1.3.26"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:4041cc04617f36a99dd837fe82019cba555f8e337d34a0fea9693ffd8613fdb5 · sha256:8dbd709acbfdf3d2… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":9.3,"baseSeverity":"CRITICAL","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"HIGH","vulnIntegrityImpact":"HIGH"},"metric_type":"cvssV4_0"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:4041cc04617f36a99dd837fe82019cba555f8e337d34a0fea9693ffd8613fdb5 · sha256:8dbd709acbfdf3d2… · /containers/cna/metrics/0/cvssV4_0

CWE assertions

2 source assertions
{"cweId":"CWE-285","description":"CWE-285: Improper Authorization","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4041cc04617f36a99dd837fe82019cba555f8e337d34a0fea9693ffd8613fdb5 · sha256:8dbd709acbfdf3d2… · /containers/cna/problemTypes/0/descriptions/0
{"cweId":"CWE-306","description":"CWE-306: Missing Authentication for Critical Function","lang":"en","type":"CWE"}
  • cve_program_cvelist_v5cwe
    urn:baitaphish:normalized-source-record:v2:4041cc04617f36a99dd837fe82019cba555f8e337d34a0fea9693ffd8613fdb5 · sha256:8dbd709acbfdf3d2… · /containers/cna/problemTypes/1/descriptions/0

Source references

3 source assertions
{"name":"https://github.com/better-auth/better-auth/commit/556085067609c508f8c546ceef9003ee8c607d39","tags":["x_refsource_MISC"],"url":"https://github.com/better-auth/better-auth/commit/556085067609c508f8c546ceef9003ee8c607d39"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4041cc04617f36a99dd837fe82019cba555f8e337d34a0fea9693ffd8613fdb5 · sha256:8dbd709acbfdf3d2… · /containers/cna/references/1
{"name":"https://github.com/better-auth/better-auth/security/advisories/GHSA-99h5-pjcv-gr6v","tags":["x_refsource_CONFIRM"],"url":"https://github.com/better-auth/better-auth/security/advisories/GHSA-99h5-pjcv-gr6v"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4041cc04617f36a99dd837fe82019cba555f8e337d34a0fea9693ffd8613fdb5 · sha256:8dbd709acbfdf3d2… · /containers/cna/references/0
{"tags":["exploit"],"url":"https://github.com/better-auth/better-auth/security/advisories/GHSA-99h5-pjcv-gr6v"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:4041cc04617f36a99dd837fe82019cba555f8e337d34a0fea9693ffd8613fdb5 · sha256:8dbd709acbfdf3d2… · /containers/adp/0/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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