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Version: v1.2.x

CVE-2026-77354

CVE Details

Visit the official vulnerability details page for CVE-2026-77354 to learn more.

Initial Publication

08/21/2026

Last Update

08/25/2026

Third Party Dependency

github.com/getkin/kin-openapi

NIST CVE Summary

kin-openapi is a Go project for handling OpenAPI files. From 0.124.0 until 0.142.0, openapi3filter.sliceMapToSlice in openapi3filter/req_resp_decoder.go converts attacker-controlled sparse indexes from a deepObject query parameter into a dense slice by allocating entries from zero through the largest supplied index, after which buildResObj creates another slice of the same length. This allocation occurs before schema validation, so maxItems does not prevent it. An unauthenticated client can send a small query such as param[items][50000000]=x to an endpoint whose deepObject schema contains an array, forcing multi-gigabyte heap allocation and causing an OOM kill or restart loop. Other request-body encodings and styled parameters that do not produce bracketed integer indexes are not affected. This issue is fixed in version 0.142.0.

CVE Severity

8.7

Our Official Summary

Investigation is ongoing to determine how this vulnerability affects our products.

Status

Received

Affected Products & Versions

VersionPaletteAIPaletteAI VerteX
1.2.2⚠️ Impacted⚠️ Impacted

Revision History

No revisions available.