# CVE-2026-129165: Tactical RMM 0.17.0 through 1.6.1 Arbitrary File Read via Report Preview

Status: published. Published: 2026-11-13. Updated: 2026-11-13.

Tactical RMM 0.17.0 through 1.6.1 contains an arbitrary file read in the /reporting/templates/preview/ endpoint because WeasyPrint resolves file:// links in user-supplied template_md and embeds the files in the returned PDF. Users with report management permission can read the Django SECRET_KEY, reused as the NATS password, and publish runscript commands to every managed agent.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- AmidaWare / Tactical RMM (amidaware/tacticalrmm): ≥ 0.17.0; ≤ 1.6.1 (affected, semver). Source: CNA: VulnCheck

## Severity and prioritization

- CVSS 4.0: 9.4 (critical); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H; source: CNA: VulnCheck

- CVSS 3.1: 9.1 (critical); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H; source: CNA: VulnCheck

- CVSS 4.0: 9.4 (critical); CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/E:X/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: disclosure@vulncheck.com

- CVSS 3.1: 9.1 (critical); CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:H; source: NVD: disclosure@vulncheck.com

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact total; source ADP: CISA-ADP

- Weaknesses: CWE-73

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://vul.yulun.ac.cn/20261028/tacticalrmm/ (CNA: VulnCheck; third-party-advisory)

- https://github.com/amidaware/tacticalrmm/blob/086e2d9714b1716796722c7e0c19a1ebe08a39f2/api/tacticalrmm/ee/reporting/utils.py#L110-L117 (CNA: VulnCheck; technical-description)

- https://github.com/amidaware/tacticalrmm/blob/086e2d9714b1716796722c7e0c19a1ebe08a39f2/api/tacticalrmm/ee/reporting/views.py#L202-L245 (CNA: VulnCheck; technical-description)

- https://github.com/amidaware/tacticalrmm/blob/086e2d9714b1716796722c7e0c19a1ebe08a39f2/api/tacticalrmm/tacticalrmm/utils.py#L227-L236 (CNA: VulnCheck; technical-description)

- https://www.vulncheck.com/advisories/tactical-rmm-0.17.0-through-1.6.1-arbitrary-file-read-via-report-preview (CNA: VulnCheck; third-party-advisory)

- https://github.com/amidaware/tacticalrmm/blob/086e2d9714b1716796722c7e0c19a1ebe08a39f2/api/tacticalrmm/ee/reporting/utils.py#L110-L117 (disclosure@vulncheck.com)

- https://github.com/amidaware/tacticalrmm/blob/086e2d9714b1716796722c7e0c19a1ebe08a39f2/api/tacticalrmm/ee/reporting/views.py#L202-L245 (disclosure@vulncheck.com)

- https://github.com/amidaware/tacticalrmm/blob/086e2d9714b1716796722c7e0c19a1ebe08a39f2/api/tacticalrmm/tacticalrmm/utils.py#L227-L236 (disclosure@vulncheck.com)

- https://vul.yulun.ac.cn/20261028/tacticalrmm/ (disclosure@vulncheck.com)

- https://www.vulncheck.com/advisories/tactical-rmm-0.17.0-through-1.6.1-arbitrary-file-read-via-report-preview (disclosure@vulncheck.com)

## Provenance

- CNA: VulnCheck: https://www.cve.org/CVERecord?id=CVE-2026-129165; retrieved 2026-11-13; source updated 2026-11-13

- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-129165; retrieved 2026-11-14; source updated 2026-11-13

Revision: 45bc885303bafe1403f09e5a183d26fc7de3011a40635b4aec29dd66528c0d8a

Canonical: https://y2.dev/cve/CVE-2026-129165

## 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.