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fzipi merged 2 commits into from
Jan 23, 2026
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Standardize CRSLang YAML schema and fix URLs in blog post #450

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59 changes: 33 additions & 26 deletions content/blog/2026-01-22-introducing-crslang-the-next-generation-rule-language.md
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Original file line number Diff line number Diff line change
Expand Up @@ -81,22 +81,26 @@ Seclang's support for complex logical conditions is limited and often requires w

```yaml
rule:
id: 1
phase: 1
metadata:
id: 1
phase: 1
conditions:
- and:
- or:
- variable: ARGS:user
operator: "@streq"
pattern: "admin"
- variable: ARGS:username
operator: "@streq"
pattern: "admin"
- variable: REQUEST_LINE
operator: "@contains"
pattern: "admin"
- variables:
- name: ARGS:user
operator:
streq: "admin"
- variables:
- name: ARGS:username
operator:
streq: "admin"
- variables:
- name: REQUEST_LINE
operator:
contains: "admin"
actions:
- action: block
disruptive: block
```

### 3. Template Functions
Expand All @@ -108,24 +112,28 @@ templates:
admin_check:
conditions:
- or:
- variable: ARGS:user
operator: "@streq"
pattern: "admin"
- variable: ARGS:username
operator: "@streq"
pattern: "admin"
- variables:
- name: ARGS:user
operator:
streq: "admin"
- variables:
- name: ARGS:username
operator:
streq: "admin"

rules:
- id: 1
phase: 1
- metadata:
id: 1
phase: 1
conditions:
- and:
- template: admin_check
- variable: REQUEST_LINE
operator: "@contains"
pattern: "admin"
- variables:
- name: REQUEST_LINE
operator:
contains: "admin"
actions:
- action: block
disruptive: block
```

### 4. Bidirectional Translation
Expand Down Expand Up @@ -193,7 +201,6 @@ We're excited about this evolution and would love your feedback. Whether you're

Join the conversation:
- GitHub: [github.com/coreruleset/crslang](https://github.com/coreruleset/crslang)
- OWASP Slack: [owasp.org/slack/](https://owasp.org/slack/) (#coreruleset channel)
- Mailing list: Join our community discussions
- OWASP Slack: [owasp.org/slack/invite](https://owasp.org/slack/invite) (#coreruleset channel)

The future of OWASP CRS is clearer, more maintainable, and more accessible. We can't wait to see what the community builds with CRSLang.