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GHSA-jfwg-rxf3-p7r9

HIGH

Authorizer: CQL/N1QL Injection in Cassandra and Couchbase Backends via fmt.Sprintf String Interpolation

Published
Apr 6, 2026
Updated
Apr 6, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed

Blast Radius

1 pkg affected
🐹github.com/authorizerdev/authorizer

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

Vulnerability Details

CWE: CWE-943 - Improper Neutralization of Special Elements in Data Query Logic

All 66+ CQL queries in internal/storage/db/cassandradb/ use fmt.Sprintf to interpolate user-controlled values directly into CQL query strings without parameterization.

Unauthenticated endpoints (signup, login, forgot_password, magic_link_login) pass user input directly into CQL query strings.

Note: This advisory covers the Cassandra CQL injection only. The Couchbase N1QL injection is tracked in a separate advisory per CVE rule 4.2.11.

Affected Code Pattern

// Before (VULNERABLE) - e.g. cassandradb/user.go
query := fmt.Sprintf("SELECT ... FROM %s WHERE email = '%s'", table, email)
err := p.db.Query(query).Scan(...)

Steps to Reproduce

  1. Deploy Authorizer <= 2.0.0 with Cassandra backend
  2. Send a signup request with a CQL injection payload in the email field:
curl -X POST http://localhost:8080/graphql \
  -H 'Content-Type: application/json' \
  -d '{"query":"mutation { signup(params: { email: \"test'\" }) { message } }"}'
  1. The single quote breaks out of the CQL string literal, causing a CQL parse error that leaks internal schema information
  2. Crafted payloads can manipulate query logic to bypass authentication or extract data

Affected Files (10 Cassandra files)

PackageFileQueries Fixed
cassandradbuser.go7
cassandradbotp.go4
cassandradbsession_token.go19
cassandradbverification_requests.go4
cassandradbauthenticator.go3
cassandradbemail_template.go5
cassandradbwebhook.go5
cassandradbwebhook_log.go2
cassandradbsession.go1
cassandradbenv.go2

Impact

An unauthenticated attacker can inject arbitrary CQL operators through the email, phone, or token parameters on public-facing endpoints (signup, login, forgot_password, magic_link_login). This enables authentication bypass and data exfiltration from the Cassandra keyspace.

Proposed Fix

Use parameterized queries:

// After (FIXED)
query := fmt.Sprintf("SELECT ... FROM %s WHERE email = ?", table)
err := p.db.Query(query, email).Scan(...)

Fixed in https://github.com/authorizerdev/authorizer/pull/500 (merged 2026-03-27).

Affected Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogithub.com/authorizerdev/authorizerall versions0.0.0-20260327055742-73679faa53cd

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for github.com/authorizerdev/authorizer. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update github.com/authorizerdev/authorizer to 0.0.0-20260327055742-73679faa53cd or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-jfwg-rxf3-p7r9 is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-jfwg-rxf3-p7r9 is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-jfwg-rxf3-p7r9. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

## Vulnerability Details **CWE:** CWE-943 - Improper Neutralization of Special Elements in Data Query Logic All 66+ CQL queries in `internal/storage/db/cassandradb/` use `fmt.Sprintf` to interpolate user-controlled values directly into CQL query strings without parameterization. Unauthenticated endpoints (`signup`, `login`, `forgot_password`, `magic_link_login`) pass user input directly into CQL query strings. **Note:** This advisory covers the Cassandra CQL injection only. The Couchbase N1QL injection is tracked in a separate advisory per CVE rule 4.2.11. ## Affected Code Pattern ```go
O3 Security · Impact-Aware SCA

Is GHSA-jfwg-rxf3-p7r9 in your dependencies?

O3 detects GHSA-jfwg-rxf3-p7r9 across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.