Improper Authorization in LogNet grpc-spring-boot-starter Affects Multiple Versions
CVE-2026-82594

2.3LOW

Key Information:

Vendor

Lognet

Status
Grpc-spring-boot-starter
Vendor
CVE Published:
30 August 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-82594?

A vulnerability has been identified within the LogNet grpc-spring-boot-starter framework, specifically in its Annotation Processing functionality. This issue allows for improper authorization, potentially enabling malicious actors to exploit the system via remote execution. The complexity of the attack is assessed to be high, making exploitation challenging, yet the vulnerability has been publicly disclosed. Despite early notification of the issue through an official report, there has been no acknowledgment or resolution from the vendor.

Affected Version(s)

grpc-spring-boot-starter 5.0

grpc-spring-boot-starter 5.1

grpc-spring-boot-starter 5.2.0

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-82594 - Proof of Concept

References

https://vuldb.com/vuln/397089
vdb-entry
https://vuldb.com/vuln/397089/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-82594
third-party-advisory

CVSS V4

Score:
2.3
Severity:
LOW
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Wayde.Shi24 (VulDB User)
VulDB CNA Team
.