kin-openapi deepObject query decoding repeatedly compiles an invariant regular expression (getkin kin-openapi)

CVE-2026-100350
MEDIUM 5.3

En bref

Source
NVD
EPSS
EPSS 0.45 % · centile 39 ()
État
PUBLISHED
Publiée
Mise à jour
Attribuée par
GitHub_M
Statut NVD
Deferred

Description

kin-openapi is a Go project for handling OpenAPI files. From 0.145.0 until 0.146.0, openapi3filter repeatedly calls regexp.MustCompile for the same parameter-name regular expression inside the per-query-key loop in urlValuesDecoder.DecodeObject used to decode a deepObject query parameter. An unauthenticated remote client can send an affected endpoint a request containing many unrelated query keys, causing ValidateRequest to perform work and allocations proportional to the attacker-controlled key count for every deepObject parameter. The expression itself is fixed and this is not regular expression denial of service; the resource consumption comes from loop-invariant recompilation. This issue is fixed in version 0.146.0.

Faiblesses (CWE)

  • CWE-400 — Consommation de ressources non maîtrisée (déni de service)
  • CWE-770 — Allocation de ressources sans limite ni régulation
  • CWE-1050 — Excessive Platform Resource Consumption within a Loop

Références

Scores

VersionScoreVecteurÉvalué par
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LGitHub_M
CVSS 3.1MEDIUM 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:LNVD · security-advisories@github.com (Secondary)

Avis

Références européennes

Produits affectés

ProduitVersions
getkin · kin-openapiaffected >= 0.145.0, < 0.146.0

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