> For the complete documentation index, see [llms.txt](https://docs.arnica.io/arnica-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.arnica.io/arnica-documentation/code-risks/3rd-party-package-licenses.md).

# 3rd Party Package Licenses

Arnica identifies license risks in your open source dependencies and surfaces violations based on each license's classification. By default, Arnica follows [Google's open source license classification framework](https://opensource.google/documentation/reference/thirdparty/licenses#types), with the option to customize classifications to fit your organization's compliance policy.

## Supported languages

<table><thead><tr><th width="339">Language</th><th>Files</th></tr></thead><tbody><tr><td>.Net</td><td>packages.lock.json, packages.config, .deps.json</td></tr><tr><td>C, C++</td><td>conan.lock</td></tr><tr><td>Elixir</td><td>mix.lock</td></tr><tr><td>Go</td><td>go.mod</td></tr><tr><td>Java</td><td>pom.xml, gradle.lockfile, build.gradle, build.gradle.kts, libs.versions.toml</td></tr><tr><td>JavaScript (including JSX, TSX, TypeScript)</td><td>package-lock.json, yarn.lock, pnpm-lock.yaml, npm-shrinkwrap.json</td></tr><tr><td>PHP</td><td>composer.lock</td></tr><tr><td>Python</td><td>Pipfile.lock, poetry.lock, requirements.txt</td></tr><tr><td>Ruby</td><td>Gemfile.lock</td></tr><tr><td>Rust</td><td>Cargo.lock</td></tr><tr><td>Scala</td><td>build.sbt</td></tr><tr><td>Swift</td><td>Podfile.lock</td></tr></tbody></table>

## License classifications

Arnica organizes licenses into the following classification levels, each with a default risk severity:

| Classification | Default Risk Severity |
| -------------- | --------------------- |
| Forbidden      | High                  |
| Restricted     | High                  |
| Reciprocal     | Medium                |
| Exception      | Medium                |
| Notice         | None                  |
| Permissive     | None                  |
| Unencumbered   | None                  |
| Unknown        | None                  |

### Licenses by classification

By default, licenses are classified by Arnica as follows:

<table><thead><tr><th width="173">Classification</th><th>License</th></tr></thead><tbody><tr><td>Forbidden</td><td>BUSL-1.1, CAL-1.0, CAL-1.0-Combined-Work-Exception, CC-BY-NC-1.0, CC-BY-NC-2.0, CC-BY-NC-2.5, CC-BY-NC-3.0, CC-BY-NC-3.0-DE, CC-BY-NC-4.0, CC-BY-NC-ND-1.0, CC-BY-NC-ND-2.0, CC-BY-NC-ND-2.5, CC-BY-NC-ND-3.0, CC-BY-NC-ND-3.0-DE, CC-BY-NC-ND-3.0-IGO, CC-BY-NC-ND-4.0, CC-BY-NC-SA-1.0, CC-BY-NC-SA-2.0, CC-BY-NC-SA-2.0-DE, CC-BY-NC-SA-2.0-FR, CC-BY-NC-SA-2.0-UK, CC-BY-NC-SA-2.5, CC-BY-NC-SA-3.0, CC-BY-NC-SA-3.0-DE, CC-BY-NC-SA-3.0-IGO, CC-BY-NC-SA-4.0, Commons Clause, Commons-Clause, CPAL-1.0, CPOL-1.02, EUPL-1.0, EUPL-1.1, EUPL-1.2, Facebook-2-Clause, Facebook-3-Clause, Facebook-Examples, SISSL, SISSL-1.2, Watcom-1.0</td></tr><tr><td>Restricted</td><td>AAL, Abstyles, AdaCore-doc, Adobe-2006, Adobe-Glyph, ADSL, Afmparse, Aladdin, AMDPLPA, AML, ANTLR-PD, ANTLR-PD-fallback, APAFML, APL-1.0, App-s2p, Arphic-1999, Baekmuk, Bahyph, Barr, BCL, Bitstream-Charter, Bitstream-Vera, BitTorrent-1.0, BitTorrent-1.1, blessing, BlueOak-1.0.0, Borceux, Brian-Gladman-3-Clause, BSD-4.3RENO, BSD-4.3TAHOE, BSD-Advertising-Acknowledgement, BSD-Attribution-HPND-disclaimer, BSD-Source-Code, bzip2-1.0.5, bzip2-1.0.6, Caldera, CATOSL-1.1, CC-BY-SA-1.0, CC-BY-SA-2.0, CC-BY-SA-2.0-UK, CC-BY-SA-2.1-JP, CC-BY-SA-2.5, CC-BY-SA-3.0, CC-BY-SA-3.0-AT, CC-BY-SA-3.0-DE, CC-BY-SA-4.0, CC-PDDC, CDL-1.0, CDLA-Permissive-1.0, CDLA-Permissive-2.0, CDLA-Sharing-1.0, CECILL-1.0, CECILL-1.1, CECILL-2.0, CECILL-2.1, CECILL-B, CERN-OHL-P-2.0, CERN-OHL-S-2.0, CERN-OHL-W-2.0, CFITSIO, checkmk, ClArtistic, Clips, CMU-Mach, CNRI-Jython, CNRI-Python, CNRI-Python-GPL-Compatible, COIL-1.0, Community-Spec-1.0, Condor-1.1, copyleft-next-0.3.0, copyleft-next-0.3.1, Cornell-Lossless-JPEG, Crossword, CrystalStacker, Cube, C-UDA-1.0, curl, D-FSL-1.0, diffmark, DL-DE-BY-2.0, DOC, Dotseqn, DRL-1.0, DSDP, dvipdfm, eCos-2.0, eGenix, Elastic-2.0, EPICS, ErlPL-1.1, etalab-2.0, Eurosym, FDK-AAC, FreeBSD-DOC, FSFAP, FSFUL, FSFULLR, FSFULLRWD, GD, GFDL-1.1, GFDL-1.1-invariants-only, GFDL-1.1-invariants-or-later, GFDL-1.1-no-invariants-only, GFDL-1.1-no-invariants-or-later, GFDL-1.1-only, GFDL-1.1-or-later, GFDL-1.2, GFDL-1.2-invariants-only, GFDL-1.2-invariants-or-later, GFDL-1.2-no-invariants-only, GFDL-1.2-no-invariants-or-later, GFDL-1.2-only, GFDL-1.2-or-later, GFDL-1.3, GFDL-1.3-invariants-only, GFDL-1.3-invariants-or-later, GFDL-1.3-no-invariants-only, GFDL-1.3-no-invariants-or-later, GFDL-1.3-only, GFDL-1.3-or-later, Giftware, GL2PS, Glide, Glulxe, GLWTPL, gnuplot, GPL-1.0, GPL-1.0+, GPL-1.0-only, GPL-1.0-or-later, GPL-2.0, GPL-2.0+, GPL-2.0-only, GPL-2.0-or-later, GPL-2.0-with-autoconf-exception, GPL-2.0-with-bison-exception, GPL-2.0-with-classpath-exception, GPL-2.0-with-font-exception, GPL-2.0-with-GCC-exception, GPL-3.0, GPL-3.0+, GPL-3.0-only, GPL-3.0-or-later, GPL-3.0-with-autoconf-exception, GPL-3.0-with-GCC-exception, Graphics-Gems, gSOAP-1.3b, HaskellReport, Hippocratic-2.1, HP-1986, HPND-export-US, HPND-Markus-Kuhn, HPND-sell-variant, HPND-sell-variant-MIT-disclaimer, HTMLTIDY, IBM-pibs, ICU, IEC-Code-Components-EULA, IJG, IJG-short, iMatix, Imlib2, Info-ZIP, Intel-ACPI, Interbase-1.0, JasPer-2.0, JPL-image, JPNIC, JSON, Kazlib, Knuth-CTAN, LAL-1.2, LAL-1.3, Leptonica, LGPL-2.0, LGPL-2.0+, LGPL-2.0-only, LGPL-2.0-or-later, LGPL-2.1, LGPL-2.1+, LGPL-2.1-only, LGPL-2.1-or-later, LGPL-3.0, LGPL-3.0+, LGPL-3.0-only, LGPL-3.0-or-later, LGPLLR, libpng-2.0, libselinux-1.0, libtiff, libutil-David-Nugent, Linux-man-pages-copyleft, LOOP, LPPL-1.0, LPPL-1.1, LPPL-1.2, LPPL-1.3a, LPPL-1.3c, LZMA-SDK-9.11-to-9.20, LZMA-SDK-9.22, MakeIndex, Martin-Birgmeier, Minpack, mpich2, mpi-permissive, mplus, MS-LPL, MTLL, MulanPSL-1.0, Mup, NAIST-2003, NBPL-1.0, NCGL-UK-2.0, NetCDF, Net-SNMP, Newsletr, NGPL, NICTA-1.0, NIST-PD, NIST-PD-fallback, NLOD-1.0, NLOD-2.0, NLPL, NOSL, Noweb, NPL-1.0, NPL-1.1, NRL, NTP, NTP-0, Nunit, OCCT-PL, ODbL-1.0, ODC-By-1.0, OFFIS, OFL-1.0, OFL-1.0-no-RFN, OFL-1.0-RFN, OFL-1.1-no-RFN, OFL-1.1-RFN, OGC-1.0, OGDL-Taiwan-1.0, OGL-Canada-2.0, OGL-UK-1.0, OGL-UK-2.0, OGL-UK-3.0, OLDAP-1.1, OLDAP-1.2, OLDAP-1.3, OLDAP-1.4, OLDAP-2.0, OLDAP-2.0.1, OLDAP-2.1, OLDAP-2.2, OLDAP-2.2.1, OLDAP-2.2.2, OLDAP-2.3, OLDAP-2.4, OLDAP-2.5, OLDAP-2.6, OLDAP-2.7, OML, OpenPBS-2.3, OPL-1.0, OPUBL-1.0, OSL-1.0, OSL-1.1, OSL-2.0, OSL-2.1, OSL-3.0, O-UDA-1.0, Parity-6.0.0, Parity-7.0.0, PDDL-1.0, Plexus, PolyForm-Noncommercial-1.0.0, PolyForm-Small-Business-1.0.0, psfrag, psutils, Python License, Qhull, QPL-1.0, QPL-1.0-INRIA-2004, Rdisc, RHeCos-1.1, RSA-MD, Saxpath, SAX-PD, SCEA, SchemeReport, Sendmail, Sendmail-8.23, SHL-0.5, SHL-0.51, Sleepycat, SMLNJ, SMPPL, SNIA, snprintf, Spencer-86, Spencer-94, Spencer-99, SSH-OpenSSH, SSH-short, SSPL-1.0, StandardML-NJ, SugarCRM-1.1.3, SunPro, SWL, Symlinks, TAPR-OHL-1.0, TCL, TCP-wrappers, TMate, TORQUE-1.1, TOSL, TPDL, TPL-1.0, TTWL, TU-Berlin-1.0, TU-Berlin-2.0, UCAR, Vim, VOSTROM, w3m, Wsuipa, wxWindows, Xerox, XFree86-1.1, xinetd, xlock, xpp, XSkat, YPL-1.0, YPL-1.1, Zed, Zimbra-1.3, Zimbra-1.4</td></tr><tr><td>Reciprocal</td><td>APSL-1.0, APSL-1.1, APSL-1.2, APSL-2.0, CDDL-1.0, CDDL-1.1, CECILL-C, CERN-OHL-1.2, CPL-1.0, CUA-OPL-1.0, EPL-1.0, EPL-2.0, FreeImage, IPL-1.0, MPL-1.0, MPL-1.1, MPL-2.0, MPL-2.0-no-copyleft-exception, MS-RL, Ruby</td></tr><tr><td>Exception</td><td>CC-BY-ND-1.0, CC-BY-ND-2.0, CC-BY-ND-2.5, CC-BY-ND-3.0, CC-BY-ND-3.0-DE, CC-BY-ND-4.0, CERN-OHL-1.1, Latex2e, OFL-1.1</td></tr><tr><td>Notice</td><td>AFL-1.1, AFL-1.2, AFL-2.0, AFL-2.1, AFL-3.0, AMPAS, Apache-1.0, Apache-1.1, Apache-2.0, Artistic-1.0, Artistic-1.0-cl8, Artistic-1.0-Perl, Artistic-2.0, ASL-1.0, Beerware, BSD, BSD-1-Clause, BSD-2-Clause, BSD-2-Clause-FreeBSD, BSD-2-Clause-NetBSD, BSD-2-Clause-Patent, BSD-2-Clause-Views, BSD-3-Clause, BSD-3-Clause-Attribution, BSD-3-Clause-Clear, BSD-3-Clause-LBNL, BSD-3-Clause-Modification, BSD-3-Clause-No-Military-License, BSD-3-Clause-No-Nuclear-License, BSD-3-Clause-No-Nuclear-License-2014, BSD-3-Clause-No-Nuclear-Warranty, BSD-3-Clause-Open-MPI, BSD-4-Clause, BSD-4-Clause-Shortened, BSD-4-Clause-UC, BSD-Protection, BSL-1.0, CC-BY-1.0, CC-BY-2.0, CC-BY-2.5, CC-BY-2.5-AU, CC-BY-3.0, CC-BY-3.0-AT, CC-BY-3.0-DE, CC-BY-3.0-IGO, CC-BY-3.0-NL, CC-BY-3.0-US, CC-BY-4.0, ECL-2.0, EDL-1.0, EFL-1.0, EFL-2.0, FTL, HPND, ImageMagick, ISC, ISC License, Libpng, LIL, Lil-1.0, Linux-OpenIB, LPL-1.0, LPL-1.02, MIT, MIT-0, MIT-advertising, MIT-CMU, MIT-enna, MIT-feh, MIT-Modern-Variant, MITNFA, MIT-open-group, MIT-Wu, MS-PL, NCSA, OLDAP-2.8, OpenSSL, PHP-3.0, PHP-3.01, PIL, PostgreSQL, PSF-2.0, Python-2.0, Python-2.0.1, Python-2.0-complete, SGI-B-1.0, SGI-B-1.1, SGI-B-2.0, Unicode-DFS-2015, Unicode-DFS-2016, Unicode-TOU, UPL-1.0, W3C, W3C-19980720, W3C-20150513, WTFPL, X11, X11-distribute-modifications-variant, Xnet, Zend-2.0, Zlib, zlib-acknowledgement, ZPL-1.1, ZPL-2.0, ZPL-2.1</td></tr><tr><td>Unencumbered</td><td>OBSD, CC0-1.0, Public Domain, Unlicense</td></tr><tr><td>Unknown</td><td>AG-Grid, amazon-software-lic-for-amazon-dynamodb-lock-client, amCharts-Free, AppOptics-Java-Agent, Aspose-EULA, ASPSecurityKit-Khosla-Tech, bpmn.io, Chilkat-Software, Conviva, DBAD, Dom4J, ECL-1.0, Entessa, EUDatagrid, Facebook-Platform, Fair, Frameworx-1.0, Froala-Editor, FsUnit, Go, H2-Database-1.0, Highsoft, HSQLDB, Image-Components-SDK, Indiana-University-Extreme-Lab-1.2, Intel, IPA, Jam, JTA, LiLiQ-P-1.1, LiLiQ-R-1.1, LiLiQ-Rplus-1.1, LLVM-exception, Microsoft-.NET-Library, Microsoft-.NET-Library-AspNetComponent-EULA, Microsoft-ASP.NET-Model-View-Controller-4-EULA, Microsoft-AspNet-MVC3-Update-EULA, Microsoft-EULA, Microsoft-Lightswitch-Client-Javascript-Runtime, Microsoft-Visual-Studio-Sharepoint-Emulators, Microsoft-Web-WebView2, MirOS, Motosoto, MulanPSL-2.0, Multics, NASA-1.3, Naumen, Neodynamic, Nokia, No-License, NorthwoodsSoftware-EULA, NPOSL-3.0, OCLC-2.0, OGTSL, Oracle-Technology-Network, OSET-PL-2.1, PayPal-SDK, Protobuf, Resizer-Freedom, RPL-1.1, RPL-1.5, RPSL-1.0, RSCPL, SimPL-2.0, SpecFlow-EULA, SPL-1.0, UCL-1.0, UnboundID-LDAP-SDK-Free, Unspecified-Commercial, VSL-1.0</td></tr></tbody></table>

## Customizing license policies

License classification risk levels can be adjusted, and individual licenses can be explicitly overridden as forbidden or approved.

{% hint style="warning" %}
Changes take effect the next time a full source code scan runs (daily on paid plans) or on the next event triggered by the [code risk policy](/arnica-documentation/code-risks/code-risk-policy-settings.md), such as a code push or pull request.
{% endhint %}

### Modify risk severity

1. Navigate to the [policies page](https://app.arnica.io/#/admin/policy-v2) and expand **Code Risks** then **Licenses**.
2. Change the risk severity of any classification level by clicking the preferred severity chip.
3. Click **Save** at the bottom of the policy section.

<figure><img src="/files/6H4nQ8AxRgKZeIBpDcDF" alt=""><figcaption><p>License classification and overrides policy</p></figcaption></figure>

### Override forbidden and approved licenses

Individual licenses can be explicitly marked as forbidden or approved, regardless of their classification level.

1. Navigate to the [policies page](https://app.arnica.io/#/admin/policy-v2) and expand **Code Risks** then **Licenses**.
2. Click the **+** next to **Forbidden** or **Approved** in the Overrides panel.
3. Search for and select the license.

<figure><img src="/files/WPikbBSbzHpGb1Fx24Ft" alt=""><figcaption><p>License override search</p></figcaption></figure>

4. The selected licenses appear in the overrides section. Validate and click **Save** at the bottom of the policy section.

<figure><img src="/files/djsrbypvp41yN5q5BsEN" alt=""><figcaption><p>Overridden licenses</p></figcaption></figure>


---

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## Querying This Documentation
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Perform an HTTP GET request on the current page URL with the `ask` query parameter:

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