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Malicious code in iterquarry (PyPI)

What to do

Vendor response not established. Follow the primary source's mitigation guidance and check back for a fix.

This page has no inventory attached, so it cannot say whether you are affected. A vendor fix is not proof that your deployment is fixed.

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Affected packages

  • PyPI iterquarry

    Affected
    >= 2.1.1, <= 2.1.1>= 2.1.2, <= 2.1.2>= 2.1.3, <= 2.1.3>= 2.1.4, <= 2.1.4>= 2.2.0, <= 2.2.0>= 2.2.1, <= 2.2.1
    Fixed in
    no fixed version recorded

Sources

Severity and exploitation
Exploitation
No confirmed exploitation recorded. Patch Next marks exploitation only from CISA KEV.
CVSS
not scored
EPSS
No dated EPSS signal available.
Source description

As published by the source; long descriptions are shortened.

--- _-= Per source details. Do not edit below this line.=-_

Source: amazon-inspector (c408d2ad5c91bc36fcf3fb32c9649828b6c358f6eb0f32d71a18cfdc226c604d) iterquarry 2.1.2 presents itself as an iterator utility library but is structured as a thin facade over a sibling PyPI package 'libseal'. pyproject.toml declares dependencies = ["libseal"] with no version constraint, so whatever version resolves on PyPI at install time is pulled in and its top-level code runs when iterquarry is imported (recipes.py runs 'from libseal import PACKAGE_ROOT, LibsealError, load_sealed_sync, read_module, seal_sync' at module scope, reachable from the package init). The advertised pairwise() API in recipes.py then calls load_sealed_sync(file=SEALED, module_path="quarry", password="pairwise") to decrypt a sealed module shipped inside libseal's install directory using a hardcoded password, and immediately invokes quarry.buffer() in-process. The actual executed code is opaque encrypted content delivered…

Dates and revisions
Published by the source
Last modified by the source
Source last checked
  1. Revision 1 · created ·

    Published from osv record MAL-2026-18131

Agent brief

Preview the exact text before you copy it. Commands are read-only suggestions; review them before running anything.

# Patch Next advisory brief: mal-2026-18131

Advisory: Malicious code in iterquarry (PyPI)
IDs: mal-2026-18131
Record: https://patchnext.com/advisories/mal-2026-18131 (revision 1, source checked 30 Oct 2026, 06:40 UTC)
Inventory: none attached. This brief comes from a public page and does not say whether any deployment is affected.
Severity: Unrated
Exploitation: no confirmed exploitation recorded. Patch Next confirms exploitation only from CISA KEV.
Vendor response: Vendor response not established. A vendor fix does not mean a deployment is fixed.

## Affected components
- PyPI iterquarry: affected >= 2.1.1, <= 2.1.1; >= 2.1.2, <= 2.1.2; >= 2.1.3, <= 2.1.3; >= 2.1.4, <= 2.1.4; >= 2.2.0, <= 2.2.0; >= 2.2.1, <= 2.2.1

## Suggested inspection (read-only)
- `python -m pip show iterquarry`: prints the installed version. Run with the environment that serves production active.

## Supported action
No complete vendor fix is recorded. Follow the primary source's mitigation guidance and check this record again before closing anything.

## Required regression checks
- Run the test suite and a production build.
- Exercise the features that depend on iterquarry.
- Repeat the inspection and confirm that only fixed versions remain installed.

## Rollback considerations
- Keep the previous lockfile and deployment artifact. Rolling back reinstates the vulnerable version, so apply any documented mitigation while you fix forward.

## Unresolved questions
- Which deployments run an affected version?
- Exploitation status can change. Check again before lowering the priority.
- Mark the work resolved only after the fixed version is verified in production.

## Sources
- Verified: https://osv.dev/vulnerability/MAL-2026-18131 (OSV record MAL-2026-18131 lists affected ranges: PyPI iterquarry >=2.1.1 =2.1.2 =2.1.3 =2.1.4 =2.2.0 =2.2.1 <=2.2.1)

Commands are suggestions: review each one before running it.

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