# CVE-2026-1709: Keylime Missing Authentication for Critical Function and Improper Authentication > Unauthenticated attackers can perform administrative operations like deleting agents and reading TPM data due to missing client-side TLS authentication in Keylime. - **Severity:** Critical 9.4 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:H/A:H`) - **Exploited in the wild:** Not known - **Login needed:** Not needed - **Attackable:** Over the internet - **Victim action needed:** Not needed - **Fix available:** Yes - **Published:** 6 Feb 2026 - **Updated:** 15 Jul 2026 - **Also known as:** ALSA-2026:2224, ALSA-2026:2225, GHSA-4jqp-9qjv-57m2, PYSEC-2026-74, RHSA-2026:2224, RHSA-2026:2225, RHSA-2026:2298, RLSA-2026:2224, RLSA-2026:2225, SUSE-SU-2026:20912-1, openSUSE-SU-2026:10165-1, openSUSE-SU-2026:20398-1 ## What is CVE-2026-1709? CVE-2026-1709 is a critical authentication bypass vulnerability in Redhat Enterprise Linux, published on 6 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim. ### Official description A flaw was found in Keylime. The Keylime registrar, since version 7.12.0, does not enforce client-side Transport Layer Security (TLS) authentication. This authentication bypass vulnerability allows unauthenticated clients with network access to perform administrative operations, including listing agents, retrieving public Trusted Platform Module (TPM) data, and deleting agents, by connecting without presenting a client certificate. Weakness: CWE-322 (Key Exchange without Entity Authentication) ## Which versions are affected by CVE-2026-1709? 5 open source packages ship an affected version, including keylime. It affects 9 products. | Package | Ecosystem | Affected | Fixed in | | --- | --- | --- | --- | | `keylime` | PyPI | All versions | 7.12.0 | | `keylime` | PyPI | From 7.12.0 | 7.12.2 | | `keylime` | PyPI | From 7.12.0 | 7.12.2 | | `keylime` | PyPI | From 7.13.0 | 7.13.1 | | `keylime` | PyPI | From 7.13.0 | 7.13.1 | | `keylime-selinux` | AlmaLinux:10 | All versions | 7.12.1-11.el10_1.4 | | `keylime` | AlmaLinux:9 | All versions | 7.12.1-11.el9_7.4 | | `keylime-base` | AlmaLinux:9 | All versions | 7.12.1-11.el9_7.4 | | `keylime-registrar` | AlmaLinux:9 | All versions | 7.12.1-11.el9_7.4 | | `keylime-selinux` | AlmaLinux:9 | All versions | 7.12.1-11.el9_7.4 | | `keylime-tenant` | AlmaLinux:9 | All versions | 7.12.1-11.el9_7.4 | | `keylime-verifier` | AlmaLinux:9 | All versions | 7.12.1-11.el9_7.4 | | `python3-keylime` | AlmaLinux:9 | All versions | 7.12.1-11.el9_7.4 | | `keylime` | Red Hat:enterprise_linux:10.1 | All versions | 0:7.12.1-11.el10_1.4 | | `keylime-base` | Red Hat:enterprise_linux:10.1 | All versions | 0:7.12.1-11.el10_1.4 | | `keylime-registrar` | Red Hat:enterprise_linux:10.1 | All versions | 0:7.12.1-11.el10_1.4 | | `keylime-selinux` | Red Hat:enterprise_linux:10.1 | All versions | 0:7.12.1-11.el10_1.4 | | `keylime-tenant` | Red Hat:enterprise_linux:10.1 | All versions | 0:7.12.1-11.el10_1.4 | | `keylime-tools` | Red Hat:enterprise_linux:10.1 | All versions | 0:7.12.1-11.el10_1.4 | | `keylime-verifier` | Red Hat:enterprise_linux:10.1 | All versions | 0:7.12.1-11.el10_1.4 | | `python3-keylime` | Red Hat:enterprise_linux:10.1 | All versions | 0:7.12.1-11.el10_1.4 | | `keylime` | Red Hat:enterprise_linux:9::appstream | All versions | 0:7.12.1-11.el9_7.4 | | `keylime-base` | Red Hat:enterprise_linux:9::appstream | All versions | 0:7.12.1-11.el9_7.4 | | `keylime-registrar` | Red Hat:enterprise_linux:9::appstream | All versions | 0:7.12.1-11.el9_7.4 | | `keylime-selinux` | Red Hat:enterprise_linux:9::appstream | All versions | 0:7.12.1-11.el9_7.4 | | `keylime-tenant` | Red Hat:enterprise_linux:9::appstream | All versions | 0:7.12.1-11.el9_7.4 | | `keylime-verifier` | Red Hat:enterprise_linux:9::appstream | All versions | 0:7.12.1-11.el9_7.4 | | `python3-keylime` | Red Hat:enterprise_linux:9::appstream | All versions | 0:7.12.1-11.el9_7.4 | | `keylime` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:7.12.1-2.el10_0.5 | | `keylime-base` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:7.12.1-2.el10_0.5 | | `keylime-registrar` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:7.12.1-2.el10_0.5 | | `keylime-selinux` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:7.12.1-2.el10_0.5 | | `keylime-tenant` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:7.12.1-2.el10_0.5 | | `keylime-tools` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:7.12.1-2.el10_0.5 | | `keylime-verifier` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:7.12.1-2.el10_0.5 | | `python3-keylime` | Red Hat:enterprise_linux_eus:10.0 | All versions | 0:7.12.1-2.el10_0.5 | | `keylime` | Rocky Linux:10 | All versions | 0:7.12.1-11.el10_1.4 | | `keylime` | Rocky Linux:9 | All versions | 0:7.12.1-11.el9_7.4 | | `keylime` | SUSE:Linux Enterprise Server 16.0 | All versions | 7.14.0+0-160000.1.1 | | `keylime` | SUSE:Linux Enterprise Server for SAP applications 16.0 | All versions | 7.14.0+0-160000.1.1 | Products: Keylime Keylime, Redhat Enterprise Linux, Redhat Enterprise Linux Eus, Redhat Enterprise Linux for Arm 64, Redhat Enterprise Linux for Arm 64 Eus, Redhat Enterprise Linux for Ibm Z Systems, Redhat Enterprise Linux for Ibm Z Systems Eus, Redhat Enterprise Linux for Power Little Endian, Redhat Enterprise Linux for Power Little Endian Eus. ## How do I fix CVE-2026-1709? Upgrade keylime to a fixed version for your release line: 7.12.0, 7.12.2 or 7.13.1. ## Is CVE-2026-1709 being exploited? There is no known exploitation of CVE-2026-1709 in the wild and no public exploit code. ## Other vulnerabilities in Redhat Enterprise Linux - [CVE-2021-43310](https://insights.sbomify.com/CVE-2021-43310/): Auth bypass in keylime (critical 9.8) - [CVE-2022-23948](https://insights.sbomify.com/CVE-2022-23948/): Information disclosure in keylime (high 7.5) - [CVE-2022-23949](https://insights.sbomify.com/CVE-2022-23949/): Other in keylime (high 7.5) - [CVE-2022-23950](https://insights.sbomify.com/CVE-2022-23950/): Denial of service in keylime (high 7.5) - [CVE-2022-23952](https://insights.sbomify.com/CVE-2022-23952/): Information disclosure in keylime (high 7.5) ## Fix prompt for AI coding agents ```text Check this codebase for CVE-2026-1709 and fix it if it is affected. What it is: CVE-2026-1709 is a critical authentication bypass vulnerability in Redhat Enterprise Linux, published on 6 Feb 2026. An attacker can exploit it over the internet without logging in, with no action from the victim. Exploitation: There is no known exploitation of CVE-2026-1709 in the wild and no public exploit code. Affected packages and fixed versions: - keylime (PyPI): affected all versions; fixed in 7.12.0 - keylime (PyPI): affected from 7.12.0; fixed in 7.12.2 - keylime (PyPI): affected from 7.12.0; fixed in 7.12.2 - keylime (PyPI): affected from 7.13.0; fixed in 7.13.1 - keylime (PyPI): affected from 7.13.0; fixed in 7.13.1 Task: 1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies. 2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it. 3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead. 4. Run the tests and summarise what changed and why. 5. If nothing in the project is affected, say so and change nothing. Reference: https://insights.sbomify.com/CVE-2026-1709/ (Markdown: https://insights.sbomify.com/CVE-2026-1709/index.md) ``` ## Sources - CVE record: https://www.cve.org/CVERecord?id=CVE-2026-1709 - NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-1709 - OSV: https://osv.dev/vulnerability/CVE-2026-1709 --- From sbomify Insights: https://insights.sbomify.com/CVE-2026-1709/ Summaries are generated and may contain mistakes; the official description above is the record.