Keylime registrar is vulnerable to Denial-of-Service attack when updated to version 7.12.0
Impact
The Keylime registrar implemented more strict type checking on version 7.12.0. As a result, when updated to version 7.12.0, the registrar will not accept the format of the data previously stored in the database by versions >= 7.8.0, raising an exception.
This makes the Keylime registrar vulnerable to a Denial-of-Service attack in an update scenario, as an attacker could populate the registrar database by creating multiple valid agent registrations with different UUIDs while the version is still < 7.12.0. Then, when the Keylime registrar is updated to the 7.12.0 version, any query to the database matching any of the entries populated by the attacker will result in failure.
Patches
Users should upgrade to versions >= 7.12.1
Workarounds
- Remove the registrar database and re-register all agents
Credit
Reported by: Anderson Toshiyuki Sasaki/@ansasaki Patched by: Anderson Toshiyuki Sasaki/@ansasaki
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | keylime | >= 7.12.0, < 7.12.1 | 7.12.1 |
References
- https://github.com/keylime/keylime/security/advisories/GHSA-9jxq-5x44-gx23
- https://nvd.nist.gov/vuln/detail/CVE-2025-1057
- https://github.com/keylime/keylime/commit/e08b10d86c3717006774e787542c190e2ba24fc7
- https://access.redhat.com/security/cve/CVE-2025-1057
- https://bugzilla.redhat.com/show_bug.cgi?id=2343894
- https://github.com/keylime/keylime
- https://pypi.org/project/keylime
- https://github.com/advisories/GHSA-9jxq-5x44-gx23
- https://github.com/ansasaki/keylime/tree/base64_bytes
- https://github.com/keylime/rust-keylime
- https://github.com/pypa/advisory-database/tree/main/vulns/keylime/PYSEC-2026-1488.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L- Weakness (CWE)
CWE-1287, CWE-704- Platform
- Python (PyPI)
- Package
keylime- Disclosed
- 14.02.2025
- Updated
- 11.10.2026 14:18
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2026-1488 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-9jxq-5x44-gx23 - CC BY 4.0
Vulnerability history: keylime
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
- Total entries
- 9
- First → latest
- 05.2022 05.2026
- Without a fix
- 1
- Exploited in attacks
- 0
Severity breakdown
- Critical 2
- High 4
- Medium 2
- Low 1
Disclosures per year
- 2022: 2
- 2023: 3
- 2024: 0
- 2025: 2
- 2026: 2
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Keylime registrar is vulnerable to Denial-of-Service attack when updated to version 7.12.0 this entry
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