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Jackson Engstrom 125b64727c
[PM-38116] Harden SSRF protection in IPAddressExtensions (#7721)
* [PM-38116] Harden SSRF protection in IPAddressExtensions.IsInternal()

Replace the prefix/byte-pattern checks in IsInternal() with an explicit list of reserved networks from the IANA IPv4 and IPv6 Special-Purpose Address Registries, and add NAT64/6to4 embedded-IPv4 decoding so an attacker cannot reach an internal IPv4 host by encoding it as an IPv6 destination.

Coverage added:
- IPv4: 0.0.0.0/8, RFC 1918, CGNAT, loopback, link-local, 192.0.0.0/24 (incl. Oracle Cloud metadata 192.0.0.192), TEST-NET-1/2/3, 6to4 anycast, benchmarking, multicast, 240.0.0.0/4, limited broadcast.
- IPv6: ::, ::1, NAT64 local-use, discard-only, Teredo, benchmarking, AMT, ORCHID/ORCHIDv2, RFC 3849 and RFC 9637 documentation, segment routing, ULA, link-local, multicast.
- Embedded IPv4: RFC 6052 NAT64 well-known (64:ff9b::/96) and RFC 3056 6to4 (2002::/16) decode the embedded IPv4 and re-check it.
- IPv4-mapped IPv6 (::ffff:0:0/96) maps to IPv4 and re-checks.

Fixes a bypass where the previous fe-prefix check classified fec0::/10 and fe00::/10 as link-local even though only fe80::/10 is.

* [PM-38116] Restore UTF-8 BOM on IPAddressExtensions files

The .editorconfig requires *.cs files to use utf-8-bom encoding, which
was inadvertently stripped during prior edits, causing dotnet format
--verify-no-changes to fail with error CHARSET.

* updates _ipv4embedded constructor to be the same as _reservedipv4/6networks

* updates tests to use a more obviously public IP

* Adds additional tests

* refactor foreach to linq

* adds azure IP address 168.63.129.16

---------

Co-authored-by: Matt Andreko <mandreko@bitwarden.com>
2026-06-12 15:59:09 -07:00
.aspire Aspire Integration (#6775) 2026-05-15 16:57:23 +00:00
.checkmarx Have AppSec own Checkmarx config (#6912) 2026-01-28 09:18:36 -05:00
.claude Document migration workflow in .claude/CLAUDE.md (#7689) 2026-06-11 10:21:58 +02:00
.config [deps] Billing: Update swashbuckle-aspnetcore monorepo to 10.1.7 (#7008) 2026-04-07 09:38:14 -05:00
.devcontainer [deps] BRE: Update mcr.microsoft.com/mssql/server Docker tag to v2025 (#6447) 2026-06-11 11:07:07 -04:00
.git-hooks Migrate to SLNX Style Solution (#7645) 2026-05-15 18:05:38 +00:00
.github PM-36952 - Improve code review workflow with added triggers (#7663) 2026-05-29 17:56:14 +02:00
.run Add Rider launch configurations (#2646) 2023-01-31 06:20:46 +10:00
.vscode chore(launch/tasks): Upgrade for .net10 (#7584) 2026-05-05 12:05:49 -04:00
AppHost [deps] Platform: Update MessagePack to v3.1.7 [SECURITY] (#7807) 2026-06-12 12:39:51 -04:00
bitwarden_license Auth/PM-37021 - Fixing original Renovate PR not modifying packages.lock.json (#7787) 2026-06-08 19:05:28 -04:00
dev [deps] BRE: Update mcr.microsoft.com/mssql/server Docker tag to v2025 (#6447) 2026-06-11 11:07:07 -04:00
perf Auth/PM-37021 - Fixing original Renovate PR not modifying packages.lock.json (#7787) 2026-06-08 19:05:28 -04:00
src [PM-38116] Harden SSRF protection in IPAddressExtensions (#7721) 2026-06-12 15:59:09 -07:00
test [PM-38116] Harden SSRF protection in IPAddressExtensions (#7721) 2026-06-12 15:59:09 -07:00
util [DBOPS-177] Update MSSQL Docker image to SQL Server 2025 CU5 (#7806) 2026-06-11 14:44:55 -07:00
.dockerignore Bitwarden Unified Self-Host project (#2410) 2022-11-18 14:39:01 -05:00
.editorconfig Make CA1304 & CA1305 warnings (#6813) 2026-01-13 04:02:56 -05:00
.git-blame-ignore-revs Add instructions (#2232) 2022-08-30 12:17:17 -04:00
.gitattributes Run dotnet format (#1764) 2021-12-16 15:35:09 +01:00
.gitignore chore: ignore C# Dev Kit lscache and dump files (#7648) 2026-05-15 19:56:06 +00:00
bitwarden-server.slnx Migrate to SLNX Style Solution (#7645) 2026-05-15 18:05:38 +00:00
CONTRIBUTING.md Update README and CONTRIBUTING to point to contributing.bitwarden.com (#2028) 2022-06-09 12:00:58 +02:00
Directory.Build.props Bumped version to 2026.6.0 (#7747) 2026-06-02 20:21:01 +00:00
global.json [deps]: Update aspire monorepo to 13.3.4 (#7729) 2026-05-27 14:49:20 -04:00
LICENSE.txt Update paths to point to main instead of master (#3699) 2024-01-24 09:48:03 -05:00
LICENSE_AGPL.txt split license file out to support bitwarden licensed code (#912) 2020-09-04 13:36:22 -04:00
LICENSE_BITWARDEN.txt Update paths to point to main instead of master (#3699) 2024-01-24 09:48:03 -05:00
LICENSE_FAQ.md Update paths to point to main instead of master (#3699) 2024-01-24 09:48:03 -05:00
README.md Remove Gitter chat badge from README (#7138) 2026-03-04 16:28:31 +00:00
SECURITY.md Update SECURITY.md (#1913) 2022-03-15 15:54:08 -04:00
TRADEMARK_GUIDELINES.md Update TRADEMARK_GUIDELINES.md 2021-03-26 14:04:27 -04:00

Bitwarden

Github Workflow build on main


The Bitwarden Server project contains the APIs, database, and other core infrastructure items needed for the "backend" of all bitwarden client applications.

The server project is written in C# using .NET Core with ASP.NET Core. The database is written in T-SQL/SQL Server. The codebase can be developed, built, run, and deployed cross-platform on Windows, macOS, and Linux distributions.

Developer Documentation

Please refer to the Server Setup Guide in the Contributing Documentation for build instructions, recommended tooling, code style tips, and lots of other great information to get you started.

Deploy

docker

You can deploy Bitwarden using Docker containers on Windows, macOS, and Linux distributions. Use the provided PowerShell and Bash scripts to get started quickly. Find all of the Bitwarden images on GitHub Container Registry.

Full documentation for deploying Bitwarden with Docker can be found in our help center at: https://help.bitwarden.com/article/install-on-premise/

Requirements

These dependencies are free to use.

Linux & macOS

curl -s -L -o bitwarden.sh \
    "https://func.bitwarden.com/api/dl/?app=self-host&platform=linux" \
    && chmod +x bitwarden.sh
./bitwarden.sh install
./bitwarden.sh start

Windows

Invoke-RestMethod -OutFile bitwarden.ps1 `
    -Uri "https://func.bitwarden.com/api/dl/?app=self-host&platform=windows"
.\bitwarden.ps1 -install
.\bitwarden.ps1 -start

Production Container Images

View Current Production Image Hashes (click to expand)

US Production Cluster

Service Image Hash
Admin admin
API api
Billing billing
Events events
EventsProcessor eventsprocessor
Identity identity
Notifications notifications
SCIM scim
SSO sso

EU Production Cluster

Service Image Hash
Admin admin
API api
Billing billing
Events events
EventsProcessor eventsprocessor
Identity identity
Notifications notifications
SCIM scim
SSO sso

We're Hiring!

Interested in contributing in a big way? Consider joining our team! We're hiring for many positions. Please take a look at our Careers page to see what opportunities are currently open as well as what it's like to work at Bitwarden.

Contribute

Code contributions are welcome! Please commit any pull requests against the main branch. Learn more about how to contribute by reading the Contributing Guidelines. Check out the Contributing Documentation for how to get started with your first contribution.

Security audits and feedback are welcome. Please open an issue or email us privately if the report is sensitive in nature. You can read our security policy in the SECURITY.md file. We also run a program on HackerOne.

No grant of any rights in the trademarks, service marks, or logos of Bitwarden is made (except as may be necessary to comply with the notice requirements as applicable), and use of any Bitwarden trademarks must comply with Bitwarden Trademark Guidelines.

Dotnet-format

Consider installing our git pre-commit hook for automatic formatting.

git config --local core.hooksPath .git-hooks