ag-ui-protocol ag-ui Middleware convert.ts JSON.parse uncaught exception
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
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA. Impact type from CWE-248.
Summary
A vulnerability has been found in ag-ui-protocol ag-ui up to 2026-09-07. This issue affects the function JSON.parse of the file legacy/convert.ts of the component Middleware. The manipulation leads to uncaught exception. Remote exploitation of the attack is possible. Upgrading to version 2026-09-08 is capable of addressing this issue. The identifier of the patch is 30f8c794d5b73df5c610153043db502b2cc106cc. Upgrading the affected component is recommended.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- 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 |
|---|---|---|---|---|---|
| ag-ui-protocol | ag-ui | 2026-09-07 | 2026-09-08 | Patch available | CNA |
- ag-ui Vendorag-ui-protocol Affected 2026-09-07 Fixed in 2026-09-08 Patch available CNA
CPE names CNA · 1
| CPE | Versions | Role | Vendor |
|---|---|---|---|
| cpe:2.3:a:ag-ui-protocol:ag-ui:*:*:*:*:*:*:*:* | — | — | — |
- cpe:2.3:a:ag-ui-protocol:ag-ui:*:*:*:*:*:*:*:* Versions — — ·—
Remediation
- Fix · CNA ag-ui (ag-ui-protocol) Fixed in 2026-09-08
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
Not affected: 1 product
- Red Hat Hardened Images
Timeline
- 2026-10-02 Threatist record created from CVE-2026-101101
- 2026-10-03 Alias added: GHSA-chh6-2pfh-pc8w
- 2026-10-06 Affected versions changed · Red Hat
References
Patch 3
More ag-ui-protocol vulnerabilities
- TI-2026-83626 Information disclosure in ag-ui HttpAgent client CVSS 4.0MEDIUM 6.9
- TI-2026-83636 Uncontrolled resource consumption in ag-ui-protocol ag-ui CVSS 4.0MEDIUM 5.3
- TI-2026-83635 Improper input validation in ag-ui-protocol ag-ui Transport Decoder CVSS 4.0MEDIUM 5.3
- TI-2026-83632 Uncontrolled resource consumption in ag-ui SSE parser CVSS 4.0MEDIUM 5.3
- TI-2026-83628 Resource consumption in ag-ui-protocol ag-ui HTTP Transport CVSS 4.0MEDIUM 5.3
- TI-2026-62298 ag-ui-protocol ag-ui SSE Frame sse.rs resource consumption CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-101101 · CVE Program
- CVE-2026-101101 · NVD
- FIRST EPSS
- GHSA-chh6-2pfh-pc8w · GitHub Advisory Database · CC BY 4.0
- CVE-2026-101101 · Red Hat security data · CC BY 4.0
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