OPA v1.4.0

[johanfylling]

This release contains a security fix addressing CVE-2025-46569.
It also includes a mix of new features, bugfixes, and dependency updates.

Security Fix: CVE-2025-46569 - OPA server Data API HTTP path injection of Rego (GHSA-6m8w-jc87-6cr7)

A vulnerability in the OPA server's Data API allows an attacker to craft the HTTP path in a way that injects Rego code into the query that is evaluated.
The evaluation result cannot be made to return any other data than what is generated by the requested path, but this path can be misdirected, and the injected Rego code can be crafted to make the query succeed or fail; opening up for oracle attacks or, given the right circumstances, erroneous policy decision results.
Furthermore, the injected code can be crafted to be computationally expensive, resulting in a Denial Of Service (DoS) attack.

Users are only impacted if all of the following apply:

• OPA is deployed as a standalone server (rather than being used as a Go library)
• The OPA server is exposed outside of the local host in an untrusted environment.
• The configured authorization policy does not do exact matching of the input.path attribute when deciding if the request should be allowed.

or, if all of the following apply:

• OPA is deployed as a standalone server.
• The service connecting to OPA allows 3rd parties to insert unsanitised text into the path of the HTTP request to OPA’s Data API.

Note: With no Authorization Policy configured for restricting API access (the default configuration), the RESTful Data API provides access for managing Rego policies; and the RESTful Query API facilitates advanced queries.
Full access to these APIs provides both simpler, and broader access than what the security issue describes here can facilitate.
As such, OPA servers exposed to a network are not considered affected by the attack described here if they are knowingly not restricting access through an Authorization Policy.

This issue affects all versions of OPA prior to 1.4.0.

See the Security Advisory for more details.

Reported by @GamrayW, @HyouKash, @AdrienIT, authored by @johanfylling

Runtime, Tooling, SDK

• ast: Adding rego_v1 feature to --v0-compatible capabilities (#7474) authored by @johanfylling
• executable: Add version and icon to OPA windows executable (#3171) authored by @sspaink reported by @christophwille
• format: Don't panic on format due to unexpected comments (#6330) authored by @sspaink reported by @sirpi
• format: Avoid modifying strings when formatting (#6220) authored by @sspaink reported by @zregvart
• plugins/status: FIFO buffer channel for status events to prevent slow status API blocking (#7522) authored by @sspaink

Topdown and Rego

• gqlparser: Add JSON annotation in internal/gqlparser/ast to Position fields (#7509) authored by @robmyersrobmyers
• graphql: Cache GraphQL schema parse results (#7457) authored by @robmyersrobmyers
• topdown: Handling default functions in Partial Eval (#7220) authored by @johanfylling
• topdown: Fix wall clock time init for PartialRun() (#7490) authored by @srenatus
• topdown: Zero alloc lower/upper unless changed (#7472) authored by @anderseknert

Docs, Website, Ecosystem

• adopters: Cloudsmith adds support for OPA (#7498) authored by @ndouglas-cloudsmith
• docs: Fixed broken docs link (#7452) reported and authored by @fvarg00
• docs: Update built-in function examples for OPA v1 (#7514) reported and authored by @robmyersrobmyers
• docs: Add link to inline schema annotations (#7496) authored by @kmadan
• docs: Add manual trigger to integration docs (#7473) authored by @charlieegan3
• docs: Point path versioned requests to new sites (#7531) authored by @charlieegan3
• docs: Update community slack inviter link (#7488, #7493) authored by @charlieegan3
• docs: Set versioned docs links to point to archive (#7528) authored by @charlieegan3
• docs: Update helm-kubernetes-quickstart bundle (#7469) authored by @johanfylling
• docs: Update opa-docker-authz example to use ghcr and v0.10 release tag (#7513) authored by @larhauga
• docs: Fix post merge badge (#7532) authored by @sspaink
• docs: Improve request headers documentation in REST APIs (#7524) authored by @ali-jalaal
• docs: Update edge links to use /docs/edge/ path (#7529) authored by @charlieegan3
• ecosystem: Add NACP integration (#7503) authored by @charlieegan3
• ecosystem: Update traefik integration docs (#7506) authored by @charlieegan3
• ecosystem: Add Principled Evolution integration (#7495) authored by @kmadan
• ecosystem: Add tavo to ecosystem integration (#7511) authored by @percyding-tavo

Miscellaneous

• Dependency updates; notably:
  • build(deps): bump github.com/hypermodeinc/badger from v4.6.0 to v4.7.0
  • build(deps): bump github.com/spf13/viper from 1.18.2 to 1.20.1
  • build(deps): bump golang.org/x/net from 0.37.0 to 0.38.0
  • build(deps): bump google.golang.org/grpc from 1.71.0 to 1.71.1
  • build(deps): bump oras.land/oras-go/v2 from 2.3.1 to 2.5.0