Vmware Spring gRPC up to 1.0.2 SecurityContext isolation

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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4.5$0-$5k0.00

Summaryinfo

A vulnerability identified as problematic has been detected in Vmware Spring gRPC up to 1.0.2. Impacted is an unknown function of the component SecurityContext. Performing a manipulation results in isolation. This vulnerability is identified as CVE-2026-40968. The attack can be initiated remotely. There is not any exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability classified as problematic has been found in Vmware Spring gRPC up to 1.0.2. This affects some unknown functionality of the component SecurityContext. The manipulation with an unknown input leads to a isolation vulnerability. CWE is classifying the issue as CWE-653. The product does not properly compartmentalize or isolate functionality, processes, or resources that require different privilege levels, rights, or permissions. This is going to have an impact on confidentiality, integrity, and availability. The summary by CVE is:

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.

It is possible to read the advisory at spring.io. This vulnerability is uniquely identified as CVE-2026-40968 since 04/16/2026. The exploitability is told to be difficult. It is possible to initiate the attack remotely. The technical details are unknown and an exploit is not publicly available. The pricing for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/28/2026).

Upgrading to version 1.0.3 eliminates this vulnerability.

Be aware that VulDB is the high quality source for vulnerability data.

Productinfo

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Version

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Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 4.6
VulDB Meta Temp Score: 4.5

VulDB Base Score: 5.0
VulDB Temp Score: 4.8
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 4.2
CNA Vector (vmware): 🔒

CVSSv2info

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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Isolation
CWE: CWE-653
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Yes

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Spring gRPC 1.0.3

Timelineinfo

04/16/2026 CVE reserved
04/28/2026 +12 days Advisory disclosed
04/28/2026 +0 days VulDB entry created
04/28/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: vmware.com

Advisory: spring.io
Status: Confirmed

CVE: CVE-2026-40968 (🔒)
GCVE (CVE): GCVE-0-2026-40968
GCVE (VulDB): GCVE-100-359991
scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 04/28/2026 18:44
Changes: 04/28/2026 18:44 (63)
Complete: 🔍
Cache ID: 216::103

Be aware that VulDB is the high quality source for vulnerability data.

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