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Uncontrolled resource consumption in a2ui Binder component

Priority MEDIUM 57CWE-400Published · Updated

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 versions up to 0.10.6 are affected in the Binder component of renderers/web_core/src/v0_9/rendering/generic-binder.ts. Manipulation of an unspecified input leads to uncontrolled resource consumption (CWE-400). A remote attacker with low privileges can trigger it without user interaction, causing a limited loss of availability. The exploit has been publicly disclosed and a public exploit is linked in the references.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Description from the CNA

A vulnerability has been found in a2ui-project a2ui up to 0.10.6. Affected by this issue is some unknown functionality of the file renderers/web_core/src/v0_9/rendering/generic-binder.ts of the component Binder. The manipulation leads to resource consumption. The attack can be initiated remotely. The exploit has been disclosed to the public and may be used. The identifier of the patch is c97f4a02d3fea33ce3e9de5cf3fd0e3b8f3a4f0e. To fix this issue, it is recommended to deploy a patch.

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

VendorProductAffected versionsFixed inStatusSource
a2ui-projecta2ui0.10.0; 0.10.1; 0.10.2; 0.10.3; 0.10.4; 0.10.5; 0.10.6—No fix listedCNA
  • 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

CPEVersionsRoleVendor
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 description recommends deploying patch c97f4a02d3fea33ce3e9de5cf3fd0e3b8f3a4f0e.

Written with Claude Haiku 5.5 from the sources below · 2026-11-03

Timeline

  1. 2026-10-28 Threatist record created from CVE-2026-118274
  2. 2026-10-28 Alias added: GHSA-hp6r-frq8-9pmp
  3. 2026-11-03 CISA SSVC decision points changed
  4. 2026-11-03 Priority changed: LOW → MEDIUM

References

  • TI-2026-81673 Uncontrolled resource consumption in a2ui Resolver CVSS 4.0MEDIUM 6.9
  • TI-2026-81657 Resource consumption in a2ui-project a2ui DataModel.set 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