CLSA-2026-1784943103 TuxCare security update for piscina (1 CVE)

TuxCare rebuilt piscina to address 1 CVE. Fixed in 4.6.1-tuxcare.1...

ROOT-APP-NPM-CVE-2026-55388 CVE-2026-55388 in @rootio/piscina - Patched by Root

Root has patched CVE-2026-55388 in the @rootio/piscina package for Root:npm. Multiple fixed versions available...

CVE-2026-55388

A flaw was found in piscina, a Node.js worker pool implementation. This vulnerability allows an attacker to achieve arbitrary code execution by exploiting a prototype pollution issue. By manipulating the filename option, an attacker can cause their malicious code to be executed within the worker,...

CVE-2026-55388

piscina is a node.js worker pool implementation. Prior to 6.0.0-rc.2, 5.2.0, and 4.9.3, piscina's constructor and run paths read the filename option via plain member access. Both reads fall through the prototype chain when the caller's options object doesn't have filename as an own property. When...

CVE-2026-55388

piscina is a node.js worker pool implementation. Prior to 6.0.0-rc.2, 5.2.0, and 4.9.3, piscina's constructor and run paths read the filename option via plain member access. Both reads fall through the prototype chain when the caller's options object doesn't have filename as an own property. When...

EUVD-2026-38320

piscina is a node.js worker pool implementation. Prior to 6.0.0-rc.2, 5.2.0, and 4.9.3, piscina's constructor and run paths read the filename option via plain member access. Both reads fall through the prototype chain when the caller's options object doesn't have filename as an own property. When...

CVE-2026-55388 piscina: Prototype Pollution Gadget → RCE via inherited options.filename

piscina is a node.js worker pool implementation. Prior to 6.0.0-rc.2, 5.2.0, and 4.9.3, piscina's constructor and run paths read the filename option via plain member access. Both reads fall through the prototype chain when the caller's options object doesn't have filename as an own property. When...

CVE-2026-55388

Summary: CVE-2026-55388 affects piscina (node.js worker pool). Before versions 6.0.0-rc.2, 5.2.0, and 4.9.3, piscina reads options.filename by plain member access in both the constructor and run() paths, allowing the read to fall through the prototype chain. If Object.prototype.filename is pollut...

CVE-2026-55388 piscina: Prototype Pollution Gadget → RCE via inherited options.filename

piscina is a node.js worker pool implementation. Prior to 6.0.0-rc.2, 5.2.0, and 4.9.3, piscina's constructor and run paths read the filename option via plain member access. Both reads fall through the prototype chain when the caller's options object doesn't have filename as an own property. When...

CVE-2026-55388 piscina: Prototype Pollution Gadget → RCE via inherited options.filename

piscina is a node.js worker pool implementation. Prior to 6.0.0-rc.2, 5.2.0, and 4.9.3, piscina's constructor and run paths read the filename option via plain member access. Both reads fall through the prototype chain when the caller's options object doesn't have filename as an own property. When...

NPM: piscina: Prototype Pollution Gadget → RCE via inherited options.filename

NPM: piscina: Prototype Pollution Gadget → RCE via inherited options.filename vulnerability discovered by ? in WordPress Npm piscina versions = 4.9.2...

Prototype Pollution

Overview org.webjars.npm:piscina is an A fast, efficient Node.js Worker Thread Pool implementation Affected versions of this package are vulnerable to Prototype Pollution via the options.filename property in the constructor and run function. An attacker can execute arbitrary code and gain control...

@angular-architects/build-angular (16.2.0-next.2), @angular-builders/custom-esbuild (>=17.1.0-beta.0, <=19.1.0) +168 more potentially affected by CVE-2026-55388 via piscina (>=4.0.0, <=4.9.2)

piscina NPM version =4.0.0, =17.1.0-beta.0, =16.0.0-beta.0, =18.2.6-RC-1, =16.0.0, =16.2.0-next.0, =18.0.0-next.3, =2.2.7-bb.6, =2.1.5, =1.0.0, =1.0.0, =1.0.0, =1.0.0, =1.0.0, =1.0.17-dev.32 and more Source cves: CVE-2026-55388 Source advisory: SNYK:JS-PISCINA-17817071...

@5minds/processcube_engine (>=19.0.0-beta.11, <=20.0.0-renovate-fd1892-me5sbqz0), @angular-devkit/build-angular (>=20.0.0-rc.0, <=22.1.0-next.0) +57 more potentially affected by CVE-2026-55388 via piscina (>=5.0.0, <=5.1.4)

piscina NPM version =5.0.0, =19.0.0-beta.11, =20.0.0-rc.0, =20.0.0-rc.0, =1.0.0, =21.2.2-depup.0, =21.2.2-depup.0, =1.0.0, =5.0.0, =21.0.0-alpha.10, =21.0.0-alpha.10, =19.2.2-snapshot-1746816578592, =19.2.2-snapshot-1746816578592, =0.1.0, =0.1.26, =4.0.0-beta.1, =4.2.1 and more Source cves:...

GHSA-X9G3-XRWR-CWFG piscina: Prototype Pollution Gadget → RCE via inherited options.filename

Summary piscina's constructor and run paths read the filename option via plain member access: js // dist/index.js line 92 constructor const filename = options.filename ? 0, common1.maybeFileURLToPathoptions.filename : null; this.options = ...kDefaultOptions, ...options, filename, maxQueue: 0 ; //...

piscina: Prototype Pollution Gadget → RCE via inherited options.filename

Summary piscina's constructor and run paths read the filename option via plain member access: js // dist/index.js line 92 constructor const filename = options.filename ? 0, common1.maybeFileURLToPathoptions.filename : null; this.options = ...kDefaultOptions, ...options, filename, maxQueue: 0 ; //...

@5minds/processcube_engine (>=19.0.0-beta.11, <=20.0.0-renovate-fd1892-me5sbqz0), @angular-devkit/build-angular (>=20.0.0-rc.0, <=22.1.0-next.0) +57 more potentially affected by CVE-2026-55388 via piscina (>=5.0.0, <=5.1.4)

piscina NPM version =5.0.0, =19.0.0-beta.11, =20.0.0-rc.0, =20.0.0-rc.0, =1.0.0, =21.2.2-depup.0, =21.2.2-depup.0, =1.0.0, =5.0.0, =21.0.0-alpha.10, =21.0.0-alpha.10, =19.2.2-snapshot-1746816578592, =19.2.2-snapshot-1746816578592, =0.1.0, =0.1.26, =4.0.0-beta.1, =4.2.1 and more Source cves:...

@angular-architects/build-angular (16.2.0-next.2), @angular-builders/custom-esbuild (>=17.1.0-beta.0, <=19.1.0) +168 more potentially affected by CVE-2026-55388 via piscina (>=4.0.0, <=4.9.2)

piscina NPM version =4.0.0, =17.1.0-beta.0, =16.0.0-beta.0, =18.2.6-RC-1, =16.0.0, =16.2.0-next.0, =18.0.0-next.3, =2.2.7-bb.6, =2.1.5, =1.0.0, =1.0.0, =1.0.0, =1.0.0, =1.0.0, =1.0.17-dev.32 and more Source cves: CVE-2026-55388 Source advisory: OSV:GHSA-X9G3-XRWR-CWFG...

PT-2026-50733

Name of the Vulnerable Software and Affected Versions piscina versions prior to 6.0.0-rc.2 piscina versions prior to 5.2.0 piscina versions prior to 4.9.3 Description Prototype pollution in the constructor and run paths allows an attacker to control the filename option. When the options object...

CVE-2026-55388

creationtimestamp| type| source ---|---|--- 2026-06-16 21:00:59+00:00| published-proof-of-concept| https://github.com/piscinajs/piscina/security/advisories/GHSA-x9g3-xrwr-cwfg 2026-06-22 16:44:13+00:00| seen| https://infosec.exchange/users/vuldb/statuses/116794762930791425 2026-06-22...