TI-2026-81657 Aliases CVE-2026-118273 GHSA-m23g-ww56-48rc

Resource consumption in a2ui-project a2ui DataModel.set

MEDIUM 57CWE-400Published 2026-10-28 · Updated 2026-11-02

Key facts

Attack vector: Network
Privileges required: Low
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: Denial of service
Confidentiality · integrity · availability: None · None · Low
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-400.

Summary

The a2ui-project a2ui package up to 0.10.6 contains a flaw in the DataModel.set function that leads to uncontrolled resource consumption (CWE-400). A remote attacker with low privileges can trigger the resource consumption without user interaction, which affects availability. A public exploit has been published and may be used.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Description from the CNA

A flaw has been found in a2ui-project a2ui up to 0.10.6. Affected by this vulnerability is the function DataModel.set of the file renderers/web_core/src/v0_9/state/data-model.ts. Executing a manipulation can lead to resource consumption. It is possible to launch the attack remotely. The exploit has been published and may be used. This patch is called 82789191ce551f4d7a095d273773fb24bd764c9d. A patch should be applied to remediate this issue.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.0031 23rd percentileScored 2026-11-07

Public exploit Yes 1 exploit referenceTagged by the CNA

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: No
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
a2ui-project	a2ui	0.10.0; 0.10.1; 0.10.2; 0.10.3; 0.10.4; 0.10.5; 0.10.6	—	No fix listed	CNA

a2ui Vendora2ui-project Affected 0.10.0; 0.10.1; 0.10.2; 0.10.3; 0.10.4; 0.10.5; 0.10.6 Fixed in — No fix listed CNA

CPE names CNA · 1

CPE	Versions	Role	Vendor
cpe:2.3:a:a2ui-project:a2ui::::::::	—	—	—

cpe:2.3:a:a2ui-project:a2ui:*:*:*:*:*:*:*:* Versions — — ·—

Remediation

The sources list no fixed version for a2ui. The source description says a patch should be applied and names patch commit 82789191ce551f4d7a095d273773fb24bd764c9d.

Written with Claude Haiku 5.5 from the sources below · 2026-11-02

Timeline

2026-10-28 Threatist record created from CVE-2026-118273
2026-10-28 Alias added: GHSA-m23g-ww56-48rc
2026-11-02 CISA SSVC decision points changed
2026-11-02 Priority changed: LOW → MEDIUM

References

Exploit 1

https://github.com/a2ui-project/a2ui/issues/2386

Patch 2

Other 1

https://github.com/a2ui-project/a2ui/

TI-2026-81673 Uncontrolled resource consumption in a2ui Resolver CVSS 4.0MEDIUM 6.9
TI-2026-81667 Uncontrolled resource consumption in a2ui Binder component CVSS 4.0MEDIUM 5.3
TI-2026-81656 Error message exposes information in a2ui-project a2ui CVSS 4.0MEDIUM 5.3
TI-2026-81638 Uncontrolled resource consumption in a2ui data-context Resolver CVSS 4.0MEDIUM 5.3
TI-2026-81674 Uncontrolled resource consumption in a2ui expression parser CVSS 4.0MEDIUM 5.1
TI-2026-62216 a2ui-project a2ui Basic Catalog safe_regex.ts redos CVSS 4.0MEDIUM 6.9

See all 14 →

Sources

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