Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1336 CNY

100%
Buy Us a Coffee

CVE-2026-76235— Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html

Quick assessment

Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

cockpit-ws是Cockpit组织的一款用于浏览器应用程序与各种配置工具和服务（如cockpit-bridge (8)）之间通信的 Web 服务组件 。 cockpit-ws存在资源管理错误漏洞，该漏洞源于登录页面处理器在处理携带CockpitLang cookie的未认证请求时泄漏堆分配，可能导致远程未认证攻击者耗尽主机内存并导致拒绝服务。

CVSS 7.5 · High EPSS 0.36% · P29

Possible ATT&CK Techniques 1 AI

T1499 · Endpoint Denial of Service

Affected Version Matrix 7

VendorProduct Version RangeStatus
Red Hat Red Hat Enterprise Linux 10 any affected
Red Hat Red Hat Enterprise Linux 7 any affected
Red Hat Red Hat Enterprise Linux 8 any affected
Red Hat Red Hat Enterprise Linux 9 any affected
Red Hat Red Hat OpenShift Dev Spaces any unaffected
any unaffected
any unaffected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-76235

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Cockpit-ws: cockpit: cockpit-ws: unauthenticated remote memory leak via cockpitlang cookie in send_login_html
Source: CVE Program / CVE List V5
Vulnerability Description
A memory leak flaw was found in cockpit-ws. The login page handler leaks a heap allocation on every unauthenticated request that carries a CockpitLang cookie, allowing a remote unauthenticated attacker to exhaust memory on the host and cause a denial of service.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
在移除最后引用时对内存的释放不恰当(内存泄露)
Source: CVE Program / CVE List V5
Vulnerability Title
cockpit-ws 资源管理错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cockpit-ws是Cockpit组织的一款用于浏览器应用程序与各种配置工具和服务（如cockpit-bridge (8)）之间通信的 Web 服务组件 。 cockpit-ws存在资源管理错误漏洞，该漏洞源于登录页面处理器在处理携带CockpitLang cookie的未认证请求时泄漏堆分配，可能导致远程未认证攻击者耗尽主机内存并导致拒绝服务。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Red Hat Red Hat Enterprise Linux 10 - cpe:/o:redhat:enterprise_linux:10
Red Hat Red Hat Enterprise Linux 7 - cpe:/o:redhat:enterprise_linux:7
Red Hat Red Hat Enterprise Linux 8 - cpe:/o:redhat:enterprise_linux:8
Red Hat Red Hat Enterprise Linux 9 - cpe:/o:redhat:enterprise_linux:9
Red Hat Red Hat OpenShift Dev Spaces - cpe:/a:redhat:openshift_devspaces:3
Red Hat Red Hat OpenShift Dev Spaces - cpe:/a:redhat:openshift_devspaces:3
Red Hat Red Hat OpenShift Dev Spaces - cpe:/a:redhat:openshift_devspaces:3

II. Public POCs for CVE-2026-76235

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-76235

请登录查看更多情报信息。

Vendor Advisories for CVE-2026-76235 (2)

Same Patch Batch · Red Hat · 2026-08-19 · 10 CVEs total

CVE-2026-70496 9.9 CRITICAL Search-v2-operator: search-v2-operator: operator clusterrole is cluster-admin equivalent v
CVE-2026-66794 9.3 CRITICAL Cluster-proxy-addon: cluster-proxy-addon: unauthenticated ssrf to arbitrary managed-cluste
CVE-2026-71470 9.1 CRITICAL Acm-search-v2-rhel9: search-v2-operator: search cr imageoverride/arguments/envvar flow uns
CVE-2026-76139 8.0 HIGH Acm-operator-bundle: acm-operator-bundle: bundle build execs unpinned stolostron/release@m
CVE-2026-75569 7.7 HIGH Mce-operator-bundle: mce-operator-bundle: bundle-generation business logic fetched from mu
CVE-2026-76827 6.8 MEDIUM Search-indexer: search-indexer: update/delete operations not scoped to caller's cluster (c
CVE-2026-18874 6.2 MEDIUM Volsync-addon-controller: volsync-addon-controller: annotation values rendered into yaml v
CVE-2026-75900 6.1 MEDIUM Swtpm: swtpm: out-of-bounds read in swtpm_nvram_checkheader due to sizeof(pointer) vs size
CVE-2026-76166 4.3 MEDIUM Modcluster-core: mod_cluster advertise listener: unauthenticated dos via crafted multicast

IV. Related Vulnerabilities

Same product: Red Hat Enterprise Linux 10
Same vendor: Red Hat
Same weakness: CWE-401

V. Comments for CVE-2026-76235

No comments yet

Leave a comment