PT-2026-57984 · Eclipse Foundation · Eclipse Grizzly

Sebastiano Sartor · Published 2026-07-14 · Updated 2026-07-14 · CVE-2026-12606

Positive Technologies (AI Summary)

CVSS v4.0

6.3

Medium

Base vector

AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Name of the Vulnerable Software and Affected Versions Eclipse Grizzly versions prior to 5.0.2

Description An issue exists where the software cannot properly parse the trailer section in a malformed trailer header line. This flaw can be leveraged to perform HTTP request smuggling, a technique used to interfere with the way a website processes sequences of HTTP requests.

Recommendations Update to version 5.0.2 or later.

Fix

HTTP Request/Response Smuggling

Weakness Enumeration

CWE-444

Related Identifiers

CVE-2026-12606

Affected Products

Eclipse Grizzly

References · 3

• https://nvd.nist.gov/vuln/detail/CVE-2026-12606 · Security Note
• https://twitter.com/CVEnew/status/2076980594248921204 · Twitter Post
• https://gitlab.eclipse.org/security/cve-assignment/-/work_items/129 · Note