Red HatCVE-2026-76235
Red Hat cockpit-ws: denial of service
High7.5CVE-2026-76235 · Published Aug 19, 2026 · updated Aug 25, 2026
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.
Affected versions
| Package | Affected | Fixed in |
|---|---|---|
| Red Hat Enterprise Linux 10 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 7 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 8 Product | all versions | No fix yet |
| Red Hat Enterprise Linux 9 Product | all versions | No fix yet |
| Red Hat OpenShift Dev Spaces Product | all versions | No fix yet |
| all versions | No fix yet | |
| all versions | No fix yet |
Details and references
- CVSS 3.1
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- Severity from
- the vendor (its own CVE record or advisory)
- Weakness
- CWE-401
More Red Hat advisories
All Red Hat| Date | Advisory | Severity | Fixed in |
|---|---|---|---|
| Aug 19 | Red Hat search-indexer. This vulnerability: protection mechanism failure | Medium6.8 | No fix yet |
| Aug 19 | Red Hat acm-operator-bundle. The build process: untrusted functionality included | High8.0 | No fix yet |
| Aug 19 | Red Hat mce-operator-bundle. The build process fetches: remote code execution | High7.7 | No fix yet |
| Aug 19 | Red Hat Advanced Cluster Management for Kubernetes 2: improper access control | Critical9.9 | No fix yet |
| Aug 19 | Red Hat: authentication bypass | Critical9.3 | No fix yet |
| Aug 19 | Red Hat volsync-addon-controller. This vulnerability: code injection | Medium6.2 | No fix yet |