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

CVE-2026-55388
HIGH 8.1

En bref

Source
NVD
EPSS
EPSS 0.48 % · centile 42 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
GitHub_M
Statut NVD
Deferred

Description

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 Object.prototype.filename is polluted upstream the inherited value flows to worker_threads.Worker import and the attacker's .mjs runs in the worker. This vulnerability is fixed in 6.0.0-rc.2, 5.2.0, and 4.9.3.

Faiblesses (CWE)

  • CWE-94 — Injection de code
  • CWE-1321 — Modification non maîtrisée du prototype d'objet (pollution de prototype)

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1HIGH 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HGitHub_M
CVSS 3.1HIGH 8.1CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:HNVD · security-advisories@github.com (Secondary)

Avis

Références européennes

Produits affectés

ProduitVersions
piscinajs · piscinaaffected < 4.9.3 ; affected >= 5.0.0-alpha.0, < 5.2.0 ; affected >= 6.0.0-rc.1, < 6.0.0-rc.2

Sources

SourceLicence
CVE List (CVEProject cvelistV5)CVE Program Terms of Use
EPSS (FIRST.org)FIRST — attribution requested
ENISA EUVDENISA — reproduction authorised, source acknowledged
NVD (NIST) via fkie-cad/nvd-json-data-feedsPublic domain — this product uses data from the NVD API but is not endorsed or certified by the NVD