macOS
Homebrewverified · 100%
brew install jwt-hacklocal Homebrew formula metadata
brew
Install jwt-hack with Homebrew, Nix
JSON Web Token Hack Toolkit. Version 2.6.0 via Homebrew; verified 2026-06-05.
install
Additional install commands
Linux
Nixverified · 92%
nix profile install nixpkgs#jwt-hacknixpkgs package indexes · pkgs/by-name/jw/jwt-hack/package.nix · source: api.github.com
overview
Package summary
JSON Web Token Hack Toolkit
Project links
Commands and aliases
- jwt-hack
history
Project history and usage
jwt-hack is a JSON Web Token security-testing toolkit for encoding, decoding, verifying, cracking weak secrets, generating attack payloads, and scanning tokens for common JWT mistakes.
Project history
The maintainer, Hahwul, described creating jwt-hack in October 2020 as a Go tool born from a personal need to make JWT security testing more convenient, initially centered on cracking JWT signing secrets with wordlists or brute force. GitHub release metadata records v1.0.0 on August 31, 2020, which lines up with that early public project period.
On June 6, 2025, the maintainer announced jwt-hack v2 as a complete Rust rewrite. The stated motivations were better stability through Rust's ownership model and improved performance; later README material shows the Rust-era tool expanding into JWE support, DEFLATE-compressed JWT handling, scan mode, API server mode, Docker images, Snapcraft, and MCP server mode.
Adoption history
jwt-hack's adoption is mainly within offensive-security, bug-bounty, and application-security workflows rather than general JWT debugging. Its README documents installation through Cargo, Homebrew, Snapcraft, source builds, GHCR, and Docker Hub, which makes it portable across local labs, CI jobs, and containerized testing environments.
How it is used
Typical use cases include decoding suspicious tokens, generating algorithm-confusion or header-based payloads, testing weak HMAC secrets with dictionaries or brute force, validating signatures, and running a scan that checks for weak secrets, missing claims, `none` algorithm acceptance, algorithm confusion, and header injection vectors.
Why package nerds care
For package nerds, jwt-hack is the security-tool counterpart to simpler JWT viewers: it packages practical JWT attack primitives into a single installable CLI and shows the 2020s shift from Go security utilities toward Rust rewrites where maintainers care about memory safety and distributable binaries.
Timeline
- 2020-08-31: v1.0.0 GitHub release published.
- 2020-10: Maintainer describes the original Go tool as created for convenient JWT security testing.
- 2025-06-06: v2.0.0 released and announced as a complete Rust rewrite.
- 2025-08-29: v2.2.0 release line adds JWE and EdDSA-oriented functionality in the Rust era.
- 2026-06-05: v2.6.0 GitHub release published.
Related projects
- jwt-hack relates to JWT.io and jwt-cli for inspection and encoding, but it is closer in spirit to web-application security tools because it includes cracking, payload generation, and vulnerability scanning.
Sources
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew post-install hook is recorded in formula metadata.
- Homebrew bottle metadata is available for 6 platform targets.
- Installs with 1 runtime dependencies.
- Build metadata lists 2 build dependencies.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
jwt-hack | cli | global executable |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-07-08
manager version2.6.0
manager updated2026-06-05
local dataok
upstreamcurrent
latest detectedv2.6.0
https://github.com/hahwul/jwt-hack
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:jwt-hack |
|---|---|
| Version | 2.6.0 |
| Package manager | Homebrew |
| Package manager page | https://formulae.brew.sh/formula/jwt-hack |
| Homepage | https://github.com/hahwul/jwt-hack |
| Repository | https://github.com/hahwul/jwt-hack |
| Upstream docs | https://github.com/hahwul/jwt-hack |
| License | MIT |
| Source archive | https://github.com/hahwul/jwt-hack/archive/refs/tags/v2.6.0.tar.gz |
| Last updated | 2026-06-05T20:50:17Z |
| Pulse | updated |
| Dependencies | openssl@4 |
| Build dependencies | pkgconf, rust |
| Bottle | available (on arm64_linux, arm64_sequoia, arm64_sonoma, arm64_tahoe, sonoma, x86_64_linux) |
| Homebrew post-install | not defined |
| Service | none declared |
registry facts
Source database details
| Source Database | Homebrew formula API |
|---|---|
| Tap | homebrew/core |
| Full Name | jwt-hack |
| Version Scheme | 0 |
| Revision | 0 |
| Head Version | HEAD |
| Bottle Stable Root URL | https://ghcr.io/v2/homebrew/core |
| Deprecated | no |
| Disabled | no |
| Keg Only | no |
| URL Keys |
|
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Nix95%
jwt-hack
nix profile install nixpkgs#jwt-hack- normalized package name match
- Matched by: Jwt Hack
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- Nucleus package database
- av.db category and tag curation
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- package relationship graph
- package version freshness
- package-page enrichment