CVE-2026-40968

Source
https://cve.org/CVERecord?id=CVE-2026-40968
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40968.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-40968
Aliases
Published
2026-04-28T13:42:35.525Z
Modified
2026-07-15T01:49:02.219373354Z
Severity
  • 4.2 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Summary
Spring gRPC SecurityContext leaks across requests on authorization failure
Details

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.

Database specific
{
    "cwe_ids": [
        "CWE-653"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/40xxx/CVE-2026-40968.json",
    "cna_assigner": "vmware",
    "unresolved_ranges": [
        {
            "extracted_events": [
                {
                    "introduced": "1.0.0"
                },
                {
                    "fixed": "1.0.3"
                }
            ],
            "source": "AFFECTED_FIELD"
        }
    ]
}
References

Affected packages

Git / github.com/spring-projects/spring-grpc

Affected ranges

Type
GIT
Repo
https://github.com/spring-projects/spring-grpc
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
Database specific
{
    "cpe": "cpe:2.3:a:vmware:spring_grpc:*:*:*:*:*:*:*:*",
    "extracted_events": [
        {
            "introduced": "0"
        },
        {
            "fixed": "1.0.3"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

v0.*
v0.1.0
v0.10.0
v0.11.0
v0.2.0
v0.3.0
v0.4.0
v0.5.0
v0.6.0
v0.7.0
v0.8.0
v0.9.0
v1.*
v1.0.0
v1.0.0-RC1
v1.0.1
v1.0.2

Database specific

source
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-40968.json"