Resource Consumption Vulnerability in a2ui Project by a2ui
CVE-2026-118271

5.3MEDIUM

Key Information:

Vendor

A2ui-project

Status
A2ui
Vendor
CVE Published:
28 October 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-118271?

A security vulnerability has been found in the a2ui Project, specifically affecting versions up to 0.10.6. The flaw lies in the data-context Resolver, particularly in the functionality related to resource management within the file renderers/web_core/src/v0_9/rendering/data-context.ts. This vulnerability can be exploited remotely, leading to excessive consumption of system resources, potentially resulting in service disruption. It is crucial to apply the patch identified as eb314e14fabd29cfb4a74e1202afc4fe2081efa2 to mitigate the risks associated with this issue. The exploit has been publicly disclosed, emphasizing the need for immediate action.

Affected Version(s)

a2ui 0.10.0

a2ui 0.10.1

a2ui 0.10.2

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-2026-118271 - Proof of Concept

References

https://vuldb.com/vuln/427569
vdb-entry
https://vuldb.com/vuln/427569/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-118271
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
None
Integrity:
None
Availability:
Low
Attack Vector:
Network
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

ez-lbz (VulDB User)
.