CVE-2026-104035: Missing Release of Resource after Effective Lifetime in Red Hat Red Hat Enterprise Linux 10
Description
CVE-2026-104035 is a vulnerability in the Kerberos Credential Manager (KCM) responder component of SSSD on Red Hat Enterprise Linux 10. A local user can cause a denial of service by repeatedly storing and destroying credentials, which leads to memory exhaustion as cached objects are not properly released. This results in the service becoming unresponsive due to continuous memory growth.
CVSS v3.1
Score 5.5medium
Affected software
Red Hat
Red Hat Enterprise Linux 10
Red Hat
Red Hat Enterprise Linux 6
Red Hat
Red Hat Enterprise Linux 7
Red Hat
Red Hat Enterprise Linux 8
Red Hat
Red Hat Enterprise Linux 9
Red Hat
Red Hat OpenShift Container Platform 4
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability involves a failure in the Kerberos Credential Manager (KCM) responder within SSSD on Red Hat Enterprise Linux 10. When a local user maintains a persistent connection and repeatedly stores and destroys credentials, the service does not release cached memory objects after credential removal. This causes memory consumption to grow continuously, eventually exhausting available memory and causing a denial of service condition.
Potential Impact
The impact is a denial of service (DoS) condition caused by memory exhaustion in the SSSD service. This can render the service unresponsive, potentially affecting system authentication processes that rely on SSSD and Kerberos credentials. There is no confidentiality or integrity impact reported.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-104035 for current remediation guidance. Until a fix is available, consider limiting local user access to prevent exploitation of this vulnerability.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-10-01T17:21:54.434Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-104035","vendor":"Red Hat"}]
Threat ID: 6ac445792cdf04f65669496b
Added to database: 10/06/2026, 00:48:57 UTC
Last enriched: 10/06/2026, 01:03:30 UTC
Last updated: 10/06/2026, 01:08:13 UTC
Views: 4
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.