CVE Explorer
CVE-2026-40969
The raw message of every server-side AuthenticationException is returned to the unauthenticated remote caller in the gRPC status description. This allows an attacker to obtain information about the authentication failure, which may be useful for further attacks.
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:cf31e09d39bf64b36cfb0ce0afc3b09b7feda82a7dfdc0a2d633a9ee8091fdf6 · sha256:10377c8a4600d3fc… · /containers/cna/affected/0
Provider-owned CVSS observations
1 source assertion{"metric":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":3.7,"baseSeverity":"LOW","confidentialityImpact":"LOW","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N","version":"3.1"},"metric_type":"cvssV3_1"}
- cve_program_cvelist_v5cvssurn:baitaphish:normalized-source-record:v2:cf31e09d39bf64b36cfb0ce0afc3b09b7feda82a7dfdc0a2d633a9ee8091fdf6 · sha256:10377c8a4600d3fc… · /containers/cna/metrics/0/cvssV3_1
CWE assertions
1 source assertion{"cweId":"CWE-209","description":"CWE-209: Generation of Error Message Containing Sensitive Information","lang":"en","type":"CWE"}
- cve_program_cvelist_v5cweurn:baitaphish:normalized-source-record:v2:cf31e09d39bf64b36cfb0ce0afc3b09b7feda82a7dfdc0a2d633a9ee8091fdf6 · sha256:10377c8a4600d3fc… · /containers/cna/problemTypes/0/descriptions/0
Source references
1 source assertion{"url":"https://spring.io/security/cve-2026-40969"}
- cve_program_cvelist_v5referenceurn:baitaphish:normalized-source-record:v2:cf31e09d39bf64b36cfb0ce0afc3b09b7feda82a7dfdc0a2d633a9ee8091fdf6 · sha256:10377c8a4600d3fc… · /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.