CVE-2026-59903

HighCVSS 7.5/10Last modified Sep 23, 2026

Description

Netty is an asynchronous, event-driven network application framework. Prior to 4.1.137.Final and 4.2.17.Final, io.netty.handler.codec.http.cors.CorsHandler setVaryHeader replaces application Vary headers such as Authorization or Cookie with Origin, allowing a caching proxy or CDN to reuse authenticated responses across users and disclose sensitive information. This issue is fixed in versions 4.1.137.Final and 4.2.17.Final.

Metrics

CVSS 3.1 7.5/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness enumeration

CWE-524

Affected software

VendorProductVersions
nettynetty< 4.1.137.Final; >= 4.2.0.Final, < 4.2.17.Final

References

Timeline

Published
Aug 17, 2026
Last modified
Sep 23, 2026
NVD status
Analyzed

Related CVEs from 2026

CVE-2026-599097.1Dell ObjectScale, versions prior to 4.3.0.1, contain(s) a Path Traversal vulnerability. A low privileged attacker with local access could poCVE-2026-59918.8A vulnerability was found in Tenda F451 1.0.0.7. Affected by this issue is the function formWrlExtraSet of the file /goform/WrlExtraSet. TheCVE-2026-599107.8Dell ObjectScale, versions prior to 4.3.0.1, contain(s) an Improper Neutralization of Special Elements used in an OS Command ('OS Command InCVE-2026-599115.5Dell ObjectScale, versions prior to 4.3.0.1, contain(s) an Insertion of Sensitive Information into Log File vulnerability in the svc_tools. CVE-2026-599127.8Dell Display and Peripheral Manager (DDPM Mac), versions prior to 2.3.0.1005, contain an Improper Access Control vulnerability. A low privilCVE-2026-599137.8Dell Display and Peripheral Manager (DDPM Mac), versions prior to 2.3.0.1005, contain a Missing Authentication for Critical Function vulneraCVE-2026-599147.8Dell Display and Peripheral Manager (DDPM Windows), versions prior to 2.3.0.17, contain an Authentication Bypass by Spoofing vulnerability. CVE-2026-599157.3Dell Alienware Command Center (AWCC), versions prior to 6.14.20.0, contain a Least Privilege Violation vulnerability. A low privileged attacCVE-2026-599167.8Dell Display and Peripheral Manager (DDPM Windows), versions prior to 2.3.0.17, contain Improper Access Control vulnerability. A low privileCVE-2026-599177.8Dell Display and Peripheral Manager (DDPM Windows), versions prior to 2.3.0.17, contain Improper Access Control vulnerability. A low privileCVE-2026-599195.5Netty is an asynchronous, event-driven network application framework. In versions prior to 4.1.136.Final and 4.2.16.Final, Netty's HAProxy eCVE-2026-59928.8A vulnerability was determined in Tenda F451 1.0.0.7. This affects the function fromP2pListFilter of the file /goform/P2pListFilter. This ma