HIGH7.5
PYSEC-2026-1489
Keylime's registrar vulnerable to Denial-of-service attack via a single open connection
Quick fix
PYSEC-2026-1489 — keylime: upgrade to the fixed version with the command below.
pip install --upgrade 'keylime>=7.4.0'Details
### Impact Keylime `registrar` is prone to a simple denial of service attack in which an adversary opens a connection to the TLS port (by default, port `8891`) blocking further, legitimate connections. As long as the connection is open, the `registrar` is blocked and cannot serve any further clients (`agents` and `tenants`), which prevents normal operation. The problem does not affect the `verifier`.
### Patches Users should upgrade to release 7.4.0
Are you affected?
Enter the version of the package you're using.
Affected packages
References
- https://github.com/keylime/keylime/security/advisories/GHSA-pg75-v6fp-8q59[WEB]
- https://nvd.nist.gov/vuln/detail/CVE-2023-38200[ADVISORY]
- https://github.com/keylime/keylime/pull/1421[WEB]
- https://github.com/keylime/keylime/commit/c68d8f0b7ea549c12b6956ab0f3c28ae0360ae17[FIX]
- https://access.redhat.com/security/cve/CVE-2023-38200[WEB]
- https://bugzilla.redhat.com/show_bug.cgi?id=2222692[WEB]
- https://github.com/keylime/keylime[PACKAGE]
- https://github.com/keylime/keylime/releases/tag/v7.4.0[WEB]
- https://pypi.org/project/keylime[PACKAGE]
- https://github.com/advisories/GHSA-pg75-v6fp-8q59[ADVISORY]