fix(deps): update dependency ajv to v8.18.0 [security] - autoclosed

[renovate]

This PR contains the following updates:

Package	Change	Age	Confidence
ajv (source)	8.17.1 → 8.18.0

GitHub Vulnerability Alerts

CVE-2025-69873

ajv (Another JSON Schema Validator) through version 8.17.1 is vulnerable to Regular Expression Denial of Service (ReDoS) when the $data option is enabled. The pattern keyword accepts runtime data via JSON Pointer syntax ($data reference), which is passed directly to the JavaScript RegExp() constructor without validation. An attacker can inject a malicious regex pattern (e.g., \"^(a|a)*$\") combined with crafted input to cause catastrophic backtracking. A 31-character payload causes approximately 44 seconds of CPU blocking, with each additional character doubling execution time. This enables complete denial of service with a single HTTP request against any API using ajv with $data: true for dynamic schema validation.

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Release Notes

ajv-validator/ajv (ajv)

v8.18.0

Compare Source

What's Changed

• feat: allow tree-shaking by adding "sideEffects": false to package.json by @​josdejong in #​2480
• fix: #​2482 Infinity and NaN serialise to null by @​jasoniangreen in #​2487
• fix: small grammatical error in managing-schemas.md by @​monteiro-renato in #​2508
• fix: typos in schema-language.md by @​monteiro-renato in #​2507
• fix(pattern): use configured RegExp engine with $data keyword to mitigate ReDoS attacks (CVE-2025-69873) by @​epoberezkin in #​2586

New Contributors

• @​josdejong made their first contribution in #​2480
• @​monteiro-renato made their first contribution in #​2508

Full Changelog: ajv-validator/ajv@v8.17.1...v8.18.0

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