Cve-2026-102479 - CraftedSignal Threat Feedhttps://feed.craftedsignal.io/tags/cve-2026-102479/Trending threats, MITRE ATT&CK coverage, and detection metadata. Fed continuously.Hugoenhello@craftedsignal.iohello@craftedsignal.ioWed, 28 Oct 2026 20:24:22 +0000https://feed.craftedsignal.io/favicon-32x32.pngCraftedSignal Threat Feedhttps://feed.craftedsignal.io/3232https://feed.craftedsignal.io/favicon.svgEclipse Vert.x: Request smuggling in HTTP/1.x decoder (CVE-2026-102479)https://feed.craftedsignal.io/briefs/2026-10-vertx-request-smuggling/Wed, 28 Oct 2026 20:24:22 +0000hello@craftedsignal.iohttps://feed.craftedsignal.io/briefs/2026-10-vertx-request-smuggling/Eclipse Vert.x contains a request smuggling vulnerability in its HTTP/1.x decoder (CVE-2026-102479) that can be leveraged for session fixation attacks.A request smuggling vulnerability has been identified in the Eclipse Vert.x HTTP/1.x decoder, tracked as CVE-2026-102479. The vulnerability arises from how the library handles specific HTTP header patterns, potentially allowing an attacker to manipulate request interpretation. This flaw can lead to downstream impacts, including session fixation. The vulnerability affects three specific minor release branches of the vertx-core component.

Impact

Successful exploitation may allow attackers to perform request smuggling, which can lead to session fixation or other unauthorized operations depending on the architecture of the application utilizing the affected Vert.x component.

Recommendation

  • Inventory applications utilizing vertx-core to determine if they are running on the affected minor release branches.
  • Prioritize patching by upgrading to the secure version of Vert.x released by the vendor in response to GHSA-ch7p-g5pm-3gqx.
  • Review application logic for dependencies on header integrity if upgrading is not immediately feasible.
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