CVE-2026-43958

Rrdtool: rrdtool: stack buffer overflow allows local code execution or denial of service

CVE-2026-43958 is fixed in 14 products on 1 platform, first by RHSA-2026:68702, released June 1, 2026. It is not reported as exploited. Patch Radar priority: High.

High
CVSS
7.8
Important
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0018
7th percentile

The round robin database (RRD) system stores and displays time-series data, such as network bandwidth, machine-room temperature, and server load average. RRDtool is a high performance data logging and graphing utility, which can be easily integrated with shell scripts, or used to create applications using its Perl, Python, Ruby, Lua, Tcl, and PHP bindings. The data is stored in a compact manner that does not expand over time, and RRDtool provides the user with useful graphs by processing the data to enforce a certain data density. Security Fix(es): * rrdtool: Stack buffer overflow in rrdcached handle_request_create() allows local privilege escalation via unbounded DS/RRA arguments (CVE-2026-43958) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.

Where it's fixed

ProductFixed inFixReleased
Linux
python3-rrdtool · RHEL 8 0:1.7.0-17.el8_10 RHSA-2026:34155 Jul 1, 2026
python3-rrdtool · RHEL 9 0:1.7.2-22.el9_8 RHSA-2026:34156 Jul 1, 2026
python3-rrdtool · almalinux 10 1.8.0-21.el10_2 ALSA-2026:33731 Jun 30, 2026
python3-rrdtool · almalinux 8 1.7.0-17.el8_10 ALSA-2026:34155 Jul 1, 2026
python3-rrdtool · almalinux 9 1.7.2-22.el9_8 ALSA-2026:34156 Jul 1, 2026
python3-rrdtool · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
python3-rrdtool · ol 10 0:1.8.0-21.el10_2 ELSA-2026-33731 Jul 16, 2026
python3-rrdtool · ol 8 0:1.7.0-17.el8_10 ELSA-2026-34155 Jul 1, 2026
python3-rrdtool · ol 9 0:1.7.2-22.el9_8 ELSA-2026-34156 Jul 1, 2026
python3-rrdtool-debuginfo · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool · RHEL 10 1.8.0-20.el10_0.1 RHSA-2026:68702 Jun 1, 2026
rrdtool · RHEL 8 0:1.7.0-17.el8_10 RHSA-2026:34155 Jul 1, 2026
rrdtool · RHEL 9 0:1.7.2-22.el9_8 RHSA-2026:34156 Jul 1, 2026
rrdtool · almalinux 10 1.8.0-21.el10_2 ALSA-2026:33731 Jun 30, 2026
rrdtool · almalinux 8 1.7.0-17.el8_10 ALSA-2026:34155 Jul 1, 2026
rrdtool · almalinux 9 1.7.2-22.el9_8 ALSA-2026:34156 Jul 1, 2026
rrdtool · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool · ol 10 0:1.8.0-21.el10_2 ELSA-2026-33731 Jul 16, 2026
rrdtool · ol 8 0:1.7.0-17.el8_10 ELSA-2026-34155 Jul 1, 2026
rrdtool · ol 9 0:1.7.2-22.el9_8 ELSA-2026-34156 Jul 1, 2026
rrdtool · opensuse-leap 16.0 1.9.0-160000.4.1 OPENSUSE-SU-2026:21525-1 Aug 4, 2026
rrdtool · rocky 10 0:1.8.0-21.el10_2 RLSA-2026:33731 Jul 7, 2026
rrdtool · rocky 8 0:1.7.0-17.el8_10 RLSA-2026:34155 Jul 4, 2026
rrdtool · rocky 9 0:1.7.2-22.el9_8 RLSA-2026:34156 Jul 5, 2026
rrdtool · sles 15.6 1.8.0-150600.3.9.1 SUSE-SU-2026:3468-1 Aug 3, 2026
rrdtool · sles 15.7 1.8.0-150600.3.9.1 SUSE-SU-2026:3468-1 Aug 3, 2026
rrdtool · sles 16.0 1.9.0-160000.4.1 SUSE-SU-2026:23141-1 Aug 4, 2026
rrdtool-debuginfo · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool-debugsource · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool-devel · RHEL 8 0:1.7.0-17.el8_10 RHSA-2026:34155 Jul 1, 2026
rrdtool-devel · RHEL 9 0:1.7.2-22.el9_8 RHSA-2026:34156 Jul 1, 2026
rrdtool-devel · almalinux 10 1.8.0-21.el10_2 ALSA-2026:33731 Jun 30, 2026
rrdtool-devel · almalinux 8 1.7.0-17.el8_10 ALSA-2026:34155 Jul 1, 2026
rrdtool-devel · almalinux 9 1.7.2-22.el9_8 ALSA-2026:34156 Jul 1, 2026
rrdtool-devel · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool-devel · ol 10 0:1.8.0-21.el10_2 ELSA-2026-33731 Jul 16, 2026
rrdtool-devel · ol 8 0:1.7.0-17.el8_10 ELSA-2026-34155 Jul 1, 2026
rrdtool-devel · ol 9 0:1.7.2-22.el9_8 ELSA-2026-34156 Jul 1, 2026
rrdtool-doc · RHEL 8 0:1.7.0-17.el8_10 RHSA-2026:34155 Jul 1, 2026
rrdtool-doc · RHEL 9 0:1.7.2-22.el9_8 RHSA-2026:34156 Jul 1, 2026
rrdtool-doc · almalinux 10 1.8.0-21.el10_2 ALSA-2026:33731 Jun 30, 2026
rrdtool-doc · almalinux 8 1.7.0-17.el8_10 ALSA-2026:34155 Jul 1, 2026
rrdtool-doc · almalinux 9 1.7.2-22.el9_8 ALSA-2026:34156 Jul 1, 2026
rrdtool-doc · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool-doc · ol 10 0:1.8.0-21.el10_2 ELSA-2026-33731 Jul 16, 2026
rrdtool-doc · ol 8 0:1.7.0-17.el8_10 ELSA-2026-34155 Jul 1, 2026
rrdtool-doc · ol 9 0:1.7.2-22.el9_8 ELSA-2026-34156 Jul 1, 2026
rrdtool-lua · RHEL 8 0:1.7.0-17.el8_10 RHSA-2026:34155 Jul 1, 2026
rrdtool-lua · RHEL 9 0:1.7.2-22.el9_8 RHSA-2026:34156 Jul 1, 2026
rrdtool-lua · almalinux 10 1.8.0-21.el10_2 ALSA-2026:33731 Jun 30, 2026
rrdtool-lua · almalinux 8 1.7.0-17.el8_10 ALSA-2026:34155 Jul 1, 2026
rrdtool-lua · almalinux 9 1.7.2-22.el9_8 ALSA-2026:34156 Jul 1, 2026
rrdtool-lua · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool-lua · ol 10 0:1.8.0-21.el10_2 ELSA-2026-33731 Jul 16, 2026
rrdtool-lua · ol 8 0:1.7.0-17.el8_10 ELSA-2026-34155 Jul 1, 2026
rrdtool-lua · ol 9 0:1.7.2-22.el9_8 ELSA-2026-34156 Jul 1, 2026
rrdtool-lua-debuginfo · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool-perl · RHEL 8 0:1.7.0-17.el8_10 RHSA-2026:34155 Jul 1, 2026
rrdtool-perl · RHEL 9 0:1.7.2-22.el9_8 RHSA-2026:34156 Jul 1, 2026
rrdtool-perl · almalinux 10 1.8.0-21.el10_2 ALSA-2026:33731 Jun 30, 2026
rrdtool-perl · almalinux 8 1.7.0-17.el8_10 ALSA-2026:34155 Jul 1, 2026
rrdtool-perl · almalinux 9 1.7.2-22.el9_8 ALSA-2026:34156 Jul 1, 2026
rrdtool-perl · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool-perl · ol 10 0:1.8.0-21.el10_2 ELSA-2026-33731 Jul 16, 2026
rrdtool-perl · ol 8 0:1.7.0-17.el8_10 ELSA-2026-34155 Jul 1, 2026
rrdtool-perl · ol 9 0:1.7.2-22.el9_8 ELSA-2026-34156 Jul 1, 2026
rrdtool-perl-debuginfo · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool-ruby · RHEL 8 0:1.7.0-17.el8_10 RHSA-2026:34155 Jul 1, 2026
rrdtool-ruby · RHEL 9 0:1.7.2-22.el9_8 RHSA-2026:34156 Jul 1, 2026
rrdtool-ruby · almalinux 10 1.8.0-21.el10_2 ALSA-2026:33731 Jun 30, 2026
rrdtool-ruby · almalinux 8 1.7.0-17.el8_10 ALSA-2026:34155 Jul 1, 2026
rrdtool-ruby · almalinux 9 1.7.2-22.el9_8 ALSA-2026:34156 Jul 1, 2026
rrdtool-ruby · ol 10 0:1.8.0-21.el10_2 ELSA-2026-33731 Jul 16, 2026
rrdtool-ruby · ol 8 0:1.7.0-17.el8_10 ELSA-2026-34155 Jul 1, 2026
rrdtool-ruby · ol 9 0:1.7.2-22.el9_8 ELSA-2026-34156 Jul 1, 2026
rrdtool-tcl · RHEL 8 0:1.7.0-17.el8_10 RHSA-2026:34155 Jul 1, 2026
rrdtool-tcl · RHEL 9 0:1.7.2-22.el9_8 RHSA-2026:34156 Jul 1, 2026
rrdtool-tcl · almalinux 10 1.8.0-21.el10_2 ALSA-2026:33731 Jun 30, 2026
rrdtool-tcl · almalinux 8 1.7.0-17.el8_10 ALSA-2026:34155 Jul 1, 2026
rrdtool-tcl · almalinux 9 1.7.2-22.el9_8 ALSA-2026:34156 Jul 1, 2026
rrdtool-tcl · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026
rrdtool-tcl · ol 10 0:1.8.0-21.el10_2 ELSA-2026-33731 Jul 16, 2026
rrdtool-tcl · ol 8 0:1.7.0-17.el8_10 ELSA-2026-34155 Jul 1, 2026
rrdtool-tcl · ol 9 0:1.7.2-22.el9_8 ELSA-2026-34156 Jul 1, 2026
rrdtool-tcl-debuginfo · amzn 2023 1.7.2-16.amzn2023.0.4 ALAS2023-2026-1823 Jun 8, 2026

Patch Radar data is free to use with attribution. Terms and how to credit it.

Product names, logos and trademarks shown on Patch Radar belong to their respective owners. They are used only to identify the software each security fix applies to and to help readers find their platform. Their use does not imply any affiliation with, or endorsement by, those owners, and Patchblox is not affiliated with any of them.