CVE Explorer
CVE-2026-40968
When an authenticated user is denied access to a gRPC method, their authenticated identity remains bound to the gRPC worker thread and can be inherited by a subsequent unauthenticated request on the same thread. This may allow the subsequent user to gain escalated permissions.
Affected versions:
Spring gRPC: 1.0.0 - 1.0.2 (fixed in 1.0.3). Older, unsupported versions are also affected.
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
0
Affected products and versions
1 source assertion{"defaultStatus":"unaffected","product":"Spring gRPC","vendor":"Spring","versions":[{"lessThan":"1.0.3","status":"affected","version":"1.0.0","versionType":"custom"}]}
- cve_program_cvelist_v5affectedurn:baitaphish:normalized-source-record:v2:a7a7d0cb4b3e24176dd9615ebdf38e897c65023e8d8c846d37b43d1e368f09f2 · sha256:3a4773baf0c134d3… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":4.3,"baseSeverity":"MEDIUM","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"LOW","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:a7a7d0cb4b3e24176dd9615ebdf38e897c65023e8d8c846d37b43d1e368f09f2 · sha256:3a4773baf0c134d3… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-653","description":"CWE-653: Improper Isolation or Compartmentalization","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:a7a7d0cb4b3e24176dd9615ebdf38e897c65023e8d8c846d37b43d1e368f09f2 · sha256:3a4773baf0c134d3… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://spring.io/security/cve-2026-40968"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:a7a7d0cb4b3e24176dd9615ebdf38e897c65023e8d8c846d37b43d1e368f09f2 · sha256:3a4773baf0c134d3… · /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.