# CVE-2026-120191: Presenton API missing authentication

Status: published. Published: 2026-11-01. Updated: 2026-11-02.

A weakness has been identified in Presenton up to 0.9.11-beta. Affected by this issue is some unknown functionality of the component API. This manipulation causes missing authentication. It is possible to initiate the attack remotely. The exploit has been made available to the public and could be used for attacks. Upgrading to version 0.9.12-beta can resolve this issue. Patch name: 44c8a61122b21f17642d717b0c4d6f2c54c0f180. You should upgrade the affected component.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulDB) — https://github.com/presenton/presenton/pull/980
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulDB) — https://github.com/presenton/presenton/commit/44c8a61122b21f17642d717b0c4d6f2c54c0f180
- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: VulDB) — https://github.com/presenton/presenton/releases/tag/v0.9.12-beta

## Affected products and versions

- n/a / Presenton: 0.9.11-beta (affected); 0.9.12-beta (unaffected). Source: CNA: VulDB

## Severity and prioritization

- CVSS 4.0: 6.9 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P; source: CNA: VulDB

- CVSS 3.1: 7.3 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C; source: CNA: VulDB

- CVSS 3.0: 7.3 (high); CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C; source: CNA: VulDB

- CVSS 2.0: 7.5 (high); AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:OF/RC:C; source: CNA: VulDB

- CVSS 4.0: 5.5 (medium); CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X; source: NVD: cna@vuldb.com

- CVSS 3.1: 7.3 (high); CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L; source: NVD: cna@vuldb.com

- CVSS 2.0: 7.5 (high); AV:N/AC:L/Au:N/C:P/I:P/A:P; source: NVD: cna@vuldb.com

- CISA KEV: No listing in collected sources

- EPSS: 0.80% as of 2026-11-02; percentile 56.69%

- SSVC: exploitation poc; automatable yes; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-306, CWE-287

## Exploit evidence

- exploit: https://github.com/presenton/presenton/issues/972 (CNA: VulDB)

## References

- https://vuldb.com/vuln/429530 (CNA: VulDB; vdb-entry)

- https://vuldb.com/vuln/429530/cti (CNA: VulDB; signature, permissions-required)

- https://vuldb.com/cve/CVE-2026-120191 (CNA: VulDB; third-party-advisory)

- https://vuldb.com/submit/1027384 (CNA: VulDB; third-party-advisory)

- https://github.com/presenton/presenton/issues/972 (CNA: VulDB; exploit, issue-tracking)

- https://github.com/presenton/presenton/pull/980 (CNA: VulDB; issue-tracking, patch)

- https://github.com/presenton/presenton/commit/44c8a61122b21f17642d717b0c4d6f2c54c0f180 (CNA: VulDB; patch)

- https://github.com/presenton/presenton/releases/tag/v0.9.12-beta (CNA: VulDB; patch)

- https://github.com/presenton/presenton/ (CNA: VulDB; product)

- https://github.com/presenton/presenton/ (cna@vuldb.com)

- https://github.com/presenton/presenton/commit/44c8a61122b21f17642d717b0c4d6f2c54c0f180 (cna@vuldb.com)

- https://github.com/presenton/presenton/issues/972 (cna@vuldb.com)

- https://github.com/presenton/presenton/pull/980 (cna@vuldb.com)

- https://github.com/presenton/presenton/releases/tag/v0.9.12-beta (cna@vuldb.com)

- https://vuldb.com/cve/CVE-2026-120191 (cna@vuldb.com)

- https://vuldb.com/submit/1027384 (cna@vuldb.com)

- https://vuldb.com/vuln/429530 (cna@vuldb.com)

- https://vuldb.com/vuln/429530/cti (cna@vuldb.com)

## Provenance

- CNA: VulDB: https://www.cve.org/CVERecord?id=CVE-2026-120191; retrieved 2026-11-02; source updated 2026-11-02

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-120191; retrieved 2026-11-02; source updated 2026-11-02

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2026-120191; retrieved 2026-11-02; source updated Not reported

Revision: 4903b929e0193a951befb4f2c71d0e01c298550053761b21c3e8dab5cf93f46e

Canonical: https://y2.dev/cve/CVE-2026-120191

## Agent and API access

Public CVE pages, Markdown, and JSON are free to read without an account or API key.

- Public catalog: https://y2.dev/cve/index.json. Follow nextCursor with the same search, filters, sort, and limit (1–100). A null cursor marks the end.

- WebMCP: search_cve_disclosures, get_cve_disclosure, get_cve_page_markdown, get_y2_cve_access. Available in compatible browsers.

- Cyber API: https://api.y2.dev/api/v2/cyber/cves and https://api.y2.dev/api/v2/cyber/cves/{cveId}.

- Y2 Pro or Elite: create a workspace API key with the intel:cyber scope and send Authorization: Bearer <Y2_API_KEY>. Setup: https://y2.dev/docs/api/create-key.

- x402: Pay per request without an account or API key. Omit Authorization, read the HTTP 402 PAYMENT-REQUIRED challenge, validate its current requirements, and retry with PAYMENT-SIGNATURE through an authorized payment client. These browser tools never make payments. Guide: https://y2.dev/docs/api/x402.

- OpenAPI: https://y2.dev/api/openapi.yaml. Agent access metadata: https://y2.dev/cve/agent.json.

Collected public records only. Check source status for coverage and freshness.