fix: resolve ajv ReDoS vulnerability by forcing ajv@8.18.0#26141
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innerdvations merged 3 commits intoMay 29, 2026
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Fixes strapi#25999 Snyk reported ajv@8.13.0 as vulnerable to Regular Expression Denial of Service (ReDoS) (CVSS 8.2, CWE-1333). The vulnerability exists in the transitive dependency chain: @strapi/database -> umzug@3.8.1 -> @rushstack/ts-command-line@4.23.1 -> @rushstack/terminal@0.14.3 -> @rushstack/node-core-library@5.10.0 -> ajv@~8.13.0 This fix forces all ajv v8 dependencies to the patched 8.18.0 version via Yarn resolutions, which prevents the vulnerable 8.13.0 from being installed.
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Pull request overview
Pins ajv to a patched version to eliminate the reported ReDoS vulnerability exposure coming from transitive dependencies (notably via @rushstack/node-core-library).
Changes:
- Add Yarn
resolutionsto forceajvrequests matching^8.0.0and~8.13.0to resolve to8.18.0. - Update
yarn.lockto removeajv@8.13.0and consolidateajvv8 to8.18.0(with related lock entry updates such asuri-jsdescriptor consolidation).
Reviewed changes
Copilot reviewed 1 out of 2 changed files in this pull request and generated no comments.
| File | Description |
|---|---|
| package.json | Adds Yarn resolutions to pin ajv to 8.18.0 for affected semver ranges. |
| yarn.lock | Removes ajv@8.13.0 from the lockfile and reflects the pinned ajv@8.18.0 resolution. |
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Keep ajv@8.18.0 yarn resolutions alongside develop's webpack pin. Regenerate yarn.lock after merge.
Scope v8 resolutions to patched 8.20.0 without overriding eslint's ajv v6 dependency. Bump the direct @strapi/database ajv pin to match.
innerdvations
approved these changes
May 29, 2026
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What does it do?
Forces all
ajvv8 dependencies to the patched8.18.0version via Yarn resolutions, preventing the vulnerableajv@8.13.0from being installed.The vulnerable dependency path was:
Why is it needed?
Snyk reports
ajv@8.13.0as vulnerable to Regular Expression Denial of Service (ReDoS) with CVSS 8.2 (High severity, CWE-1333). This affects Strapi installations via the transitive dependency chain through@rushstack/node-core-library.How to test it?
yarn why ajv- confirmajv@8.13.0is no longer presentyarn test:unit- tests continue to pass (274/289 suites pass; remaining 15 failures are pre-existing module resolution issues unrelated to this change)Related issue(s)/PR(s)
Fixes #25999