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5.3 Medium

CVE-2026-113656 ApostropheCMS is an open-source Node.js content management system

Description

ApostropheCMS is an open-source Node.js content management system. Prior to 1.5.5 of the ApostropheCMS Form add-on, its form submission route stages unbounded multipart uploads before form validation or authentication and lacks upload size, count, and rate limits. Repeated unauthenticated submissions can consume temporary disk storage and disrupt form handling or other host services. This issue is fixed in ApostropheCMS Form 1.5.5.

Affected products and versions

Product Affected versions Fixed in
apostrophe 4.33 earliest → < 4.33.0 4.33.0
form 1.5 earliest → < 1.5.5 1.5.5

References

Timeline

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The 51 CVEs of apostrophe →
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