Security Advisory

CVE-2026-93600

CVE vulnerability detail - eXtreme Datacenter Security Operations

Published 2026-09-18 13:20:10

Last updated 2026-09-18 13:20:10

Assigner VulnCheck

CVSS score 2.2

State PUBLISHED

Description

rustls-webpki (rustls/webpki) versions 0.101.0 through 0.103.11 and 0.104.0-alpha releases before 0.104.0-alpha.6 ignore X.509 name constraints that apply to URI names, causing such constraints to be accepted rather than enforced. Because name constraints are restrictions on otherwise properly issued certificates, the flaw is only reachable after successful signature verification and requires a misissued certificate to exploit; the library also provides no API for asserting URI names, and URI name constraints are otherwise unimplemented. Versions 0.103.12 and 0.104.0-alpha.6 reject URI name constraints unconditionally.

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