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CVE-2026-71190 In OpenStack Swift through 2.38.0, the proxy server Accept header parser contains a regular expression vulnerable to…

Description

In OpenStack Swift through 2.38.0, the proxy server Accept header parser contains a regular expression vulnerable to catastrophic backtracking (ReDoS). The "qdtext" pattern (?:[^"]|\\.)* allows an unauthenticated remote attacker to send a crafted Accept header that causes exponential CPU consumption in the proxy worker. A payload of 32 backslash-character pairs exceeds 30 seconds of CPU time. No authentication is required. Repeated requests can exhaust all proxy worker threads, resulting in a complete denial of service.

Produits et versions touchés

Produit Versions touchées Corrigé en
Swift 2.38.0 Pas de correctif indiqué
Swift 2.37 2.37.0 → < 2.37.3 2.37.3
Swift 2.36 2.36.0 → < 2.36.3 2.36.3
Swift 1.9 1.9.1 → < 2.35.4 2.35.4

Références

Chronologie

  1. Publiée
  2. Dernière modification

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