Vmware Spring gRPC up to 1.0.2 Raw Message information exposure

CVSS Meta Temp Score
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Current Exploit Price (≈)
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CTI Interest Score
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3.7$0-$5k0.00

Summaryinfo

A vulnerability was found in Vmware Spring gRPC up to 1.0.2. It has been rated as problematic. This vulnerability affects unknown code of the component Raw Message Handler. This manipulation causes information exposure. The identification of this vulnerability is CVE-2026-40969. It is possible to initiate the attack remotely. There is no exploit available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Vmware Spring gRPC up to 1.0.2. It has been declared as problematic. Affected by this vulnerability is an unknown function of the component Raw Message Handler. The manipulation with an unknown input leads to a information exposure vulnerability. The CWE definition for the vulnerability is CWE-209. The product generates an error message that includes sensitive information about its environment, users, or associated data. As an impact it is known to affect confidentiality. The summary by CVE is:

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.

The advisory is shared at spring.io. This vulnerability is known as CVE-2026-40969 since 04/16/2026. The exploitation appears to be difficult. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Neither technical details nor an exploit are publicly available. The price for an exploit might be around USD $0-$5k at the moment (estimation calculated on 04/28/2026). MITRE ATT&CK project uses the attack technique T1592 for this issue.

Upgrading to version 1.0.3 eliminates this vulnerability.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-26064). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 3.7
VulDB Meta Temp Score: 3.7

VulDB Base Score: 3.7
VulDB Temp Score: 3.6
VulDB Vector: 🔒
VulDB Reliability: 🔍

CNA Base Score: 3.7
CNA Vector (vmware): 🔒

CVSSv2info

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

Exploitinginfo

Class: Information exposure
CWE: CWE-209 / CWE-200 / CWE-284
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-2026-40969 (🔒)
GCVE (CVE): GCVE-0-2026-40969
GCVE (VulDB): GCVE-100-359989
EUVD: 🔒
scip Labs: https://www.scip.ch/en/?labs.20060413

Entryinfo

Created: 04/28/2026 18:19
Updated: 04/28/2026 20:28
Changes: 04/28/2026 18:19 (64), 04/28/2026 20:28 (1)
Complete: 🔍
Cache ID: 216::103

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

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