bytedance InfiniStore KV Map infinistore.h purge_kv_map algorithmic complexity
CVE-2026-11312

4.8MEDIUM

Key Information:

Vendor

Bytedance

Status
Infinistore
Vendor
CVE Published:
5 June 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-11312?

A vulnerability was found in bytedance InfiniStore up to 0.2.33. The impacted element is the function purge_kv_map in the library /src/infinistore.h of the component KV Map Handler. Performing a manipulation results in inefficient algorithmic complexity. The attack requires a local approach. The exploit has been made public and could be used. The project was informed of the problem early through an issue report but has not responded yet.

Affected Version(s)

InfiniStore 0.2.0

InfiniStore 0.2.1

InfiniStore 0.2.2

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-2026-11312 - Proof of Concept

References

https://vuldb.com/vuln/368398
vdb-entrytechnical-description
https://vuldb.com/vuln/368398/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-11312
third-party-advisory

CVSS V4

Score:
4.8
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Local
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Dem00 (VulDB User)
VulDB CNA Team
.