@chaibuilder/sdk (>=0.1.0, <=1.2.19), @coderrental/csp-categorytree (>=1.1.0, <=1.1.7) +2 more potentially affected by CVE-2026-55091 via flat-to-nested (>=1.1.0, <=1.1.1)

flat-to-nested NPM version =1.1.0, =0.1.0, =1.1.0, =1.0.17, =1.0.18 - flow-dg-category-module 0.0.0 Source cves: CVE-2026-55091 Source advisory: OSV:GHSA-HP36-V28F-W3R4...

@chaibuilder/sdk (>=0.1.0, <=1.2.19), @coderrental/csp-categorytree (>=1.1.0, <=1.1.7) +2 more potentially affected by CVE-2026-55091 via flat-to-nested (>=1.1.0, <=1.1.1)

flat-to-nested NPM version =1.1.0, =0.1.0, =1.1.0, =1.0.17, =1.0.18 - flow-dg-category-module 0.0.0 Source cves: CVE-2026-55091 Source advisory: SNYK:JS-FLATTONESTED-17817904...

GHSA-HP36-V28F-W3R4 flat-to-nested: Prototype pollution in flat-to-nested convert() via __proto__ parent/id key

Summary convert builds the nested tree by using each flat record's id and parent field values directly as object keys, with no guard against proto / constructor / prototype. A record whose parent is the string "proto" makes tempparent resolve to Object.prototype, and the following initPush...