Description
A flaw was found in rrdcached, a component of rrdtool. A local attacker with access to a rrdcached socket can exploit a stack-based buffer overflow by sending an oversized CREATE request. This vulnerability can lead to a denial of service by crashing the daemon or potentially allow for arbitrary code execution, impacting the integrity and confidentiality of data.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | — | — |
| Red Hat | Red Hat Enterprise Linux 10.0 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 8 | — | — |
| Red Hat | Red Hat Enterprise Linux 9 | — | — |
| Red Hat | Red Hat Enterprise Linux 9.2 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.4 Update Services for SAP Solutions | — | — |
| Red Hat | Red Hat Enterprise Linux 9.6 Extended Update Support | — | — |
| Red Hat | Red Hat Enterprise Linux 6 | — | — |
| Red Hat | Red Hat Enterprise Linux 7 | — | — |
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | rrdtool | No fix yet | — |
| Debian 13 | rrdtool | No fix yet | — |
| Debian 12 | rrdtool | No fix yet | — |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 26.04 LTS | rrdtool | No fix yet | — |
| Ubuntu 25.10 | rrdtool | No fix yet | — |
| Ubuntu 24.04 LTS | rrdtool | No fix yet | — |
| Ubuntu 22.04 LTS | rrdtool | No fix yet | — |
| Ubuntu 20.04 LTS | rrdtool | No fix yet | — |
Show 3 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 18.04 LTS | rrdtool | No fix yet | — |
| Ubuntu 16.04 LTS | rrdtool | No fix yet | — |
| Ubuntu 14.04 LTS | rrdtool | No fix yet | — |
Red Hat
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10 | rrdtool +7 | 1.8.0-21.el10_2 | RHSA-2026:33731 |
| RHEL 9 | rrdtool +7 | 1.7.2-22.el9_8 | RHSA-2026:34156 |
| RHEL 8 | rrdtool +7 | 1.7.0-17.el8_10 | RHSA-2026:34155 |
Show 4 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| RHEL 10.0 EUS | rrdtool | 1.8.0-20.el10_0.1 | RHSA-2026:68702 |
| RHEL 9.6 EUS | rrdtool | 1.7.2-21.el9_6.1 | RHSA-2026:71600 |
| RHEL 9.4 E4S | rrdtool | 1.7.2-21.el9_4.1 | RHSA-2026:72278 |
| RHEL 9.2 E4S | rrdtool | 1.7.2-21.el9_2.1 | RHSA-2026:72277 |
AlmaLinux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| AlmaLinux 10 | rrdtool +7 | 1.8.0-21.el10_2 | ALSA-2026:33731 |
| AlmaLinux 9 | rrdtool +7 | 1.7.2-22.el9_8 | ALSA-2026:34156 |
| AlmaLinux 8 | rrdtool +7 | 1.7.0-17.el8_10 | ALSA-2026:34155 |
Rocky Linux
Errata ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Rocky Linux 10 | rrdtool | 1.8.0-21.el10_2 | RLSA-2026:33731 |
| Rocky Linux 9 | rrdtool | 1.7.2-22.el9_8 | RLSA-2026:34156 |
| Rocky Linux 8 | rrdtool | 1.7.0-17.el8_10 | RLSA-2026:34155 |
SUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES 15 SP7 | rrdtool | 1.8.0-150600.3.9.1 | SUSE-SU-2026:3468-1 |
| SLES 15 SP6 | rrdtool | 1.8.0-150600.3.9.1 | SUSE-SU-2026:3468-1 |
| SLES 15 SP5 | rrdtool | 1.7.0-150000.6.6.1 | SUSE-SU-2026:3449-1 |
| SLES 15 SP4 | rrdtool | 1.7.0-150000.6.6.1 | SUSE-SU-2026:3449-1 |
Show 7 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| SLES for SAP 16.0 | rrdtool | 1.9.0-160000.4.1 | SUSE-SU-2026:23141-1, SUSE-SU-2026:23119-1 |
| SLES for SAP 15 SP6 | rrdtool | 1.8.0-150600.3.9.1 | SUSE-SU-2026:3468-1 |
| SLES for SAP 15 SP5 | rrdtool | 1.7.0-150000.6.6.1 | SUSE-SU-2026:3449-1 |
| SLES for SAP 15 SP4 | rrdtool | 1.7.0-150000.6.6.1 | SUSE-SU-2026:3449-1 |
| SLES 16.0 | rrdtool | 1.9.0-160000.4.1 | SUSE-SU-2026:23141-1, SUSE-SU-2026:23119-1 |
| SLE HPC 15 SP5 | rrdtool | 1.7.0-150000.6.6.1 | SUSE-SU-2026:3449-1 |
| SLE HPC 15 SP4 | rrdtool | 1.7.0-150000.6.6.1 | SUSE-SU-2026:3449-1 |
openSUSE
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| openSUSE Tumbleweed | rrdtool | 1.10.3-1.1 | openSUSE-SU-2026:11430-1 |
| openSUSE Leap 16.0 | rrdtool | 1.9.0-160000.4.1 | openSUSE-SU-2026:21525-1 |
Amazon Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Amazon Linux 2023 | rrdtool +6 | 1.7.2-16.amzn2023.0.4 | ALAS2023-2026-1823 |
Azure Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Azure Linux 3 | rrdtool | 1.8.0-3 | — |
Oracle Linux
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Oracle Linux 10 | rrdtool +7 | 1.8.0-21.el10_2 | ELSA-2026-33731 |
| Oracle Linux 9 | rrdtool +7 | 1.7.2-22.el9_8 | ELSA-2026-34156 |
| Oracle Linux 8 | rrdtool +7 | 1.7.0-17.el8_10 | ELSA-2026-34155 |
Advisories 24
- ALSA-2026:34156 Moderate: rrdtool security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:33731 Moderate: rrdtool security update AlmaLinux Security Advisories · Oct 29, 2026
- ALSA-2026:34155 Moderate: rrdtool security update AlmaLinux Security Advisories · Oct 29, 2026
- RHSA-2026:72278 Red Hat Security Advisory: rrdtool security update Red Hat Security Advisories (RHSA) · Sep 28, 2026
- RHSA-2026:72277 Red Hat Security Advisory: rrdtool security update Red Hat Security Advisories (RHSA) · Sep 28, 2026
- RHSA-2026:71600 Red Hat Security Advisory: rrdtool security update Red Hat Security Advisories (RHSA) · Sep 28, 2026
- RHSA-2026:68702 Red Hat Security Advisory: rrdtool security update Red Hat Security Advisories (RHSA) · Sep 28, 2026
- RHSA-2026:34156 Red Hat Security Advisory: rrdtool security update Red Hat Security Advisories (RHSA) · Sep 28, 2026
- RHSA-2026:34155 Red Hat Security Advisory: rrdtool security update Red Hat Security Advisories (RHSA) · Sep 28, 2026
- RHSA-2026:33731 Red Hat Security Advisory: rrdtool security update Red Hat Security Advisories (RHSA) · Sep 28, 2026
- WID-SEC-2026-2141 Red Hat Enterprise Linux (rrdcached): Schwachstelle ermöglicht Codeausführung und DoS BSI CERT-Bund (WID) · Sep 27, 2026
- SUSE-SU-2026:23141-1 Security update for rrdtool SUSE / openSUSE Security Updates · Aug 14, 2026
- SUSE-SU-2026:23119-1 Security update for rrdtool SUSE / openSUSE Security Updates · Aug 14, 2026
- openSUSE-SU-2026:21525-1 Security update for rrdtool SUSE / openSUSE Security Updates · Aug 5, 2026
- SUSE-SU-2026:3468-1 Security update for rrdtool SUSE / openSUSE Security Updates · Aug 4, 2026
- SUSE-SU-2026:3449-1 Security update for rrdtool SUSE / openSUSE Security Updates · Aug 4, 2026
- openSUSE-SU-2026:11430-1 librrd8-1.10.3-1.1 on GA media SUSE / openSUSE Security Updates · Aug 2, 2026
- ELSA-2026-33731 Moderate: rrdtool security update (Oracle Linux 10) Oracle Linux Security Advisories (ELSA) · Jul 16, 2026
- RLSA-2026:33731 Moderate: rrdtool security update Rocky Linux Security Advisories · Jul 7, 2026
- RLSA-2026:34156 Moderate: rrdtool security update Rocky Linux Security Advisories · Jul 5, 2026
- RLSA-2026:34155 Moderate: rrdtool security update Rocky Linux Security Advisories · Jul 4, 2026
- ELSA-2026-34155 Moderate: rrdtool security update (Oracle Linux 8) Oracle Linux Security Advisories (ELSA) · Jul 1, 2026
- ELSA-2026-34156 Moderate: rrdtool security update (Oracle Linux 9) Oracle Linux Security Advisories (ELSA) · Jul 1, 2026
- ALAS2023-2026-1823 Important: rrdtool security update (Amazon Linux 2023) Amazon Linux Security Center (ALAS) · Jun 22, 2026
References
- RHSA-2026:33731 vendor-advisory
- RHSA-2026:34155 vendor-advisory
- RHSA-2026:34156 vendor-advisory
- RHSA-2026:68702 vendor-advisory
- RHSA-2026:71600 vendor-advisory
- RHSA-2026:72277 vendor-advisory
- RHSA-2026:72278 vendor-advisory
- https://access.redhat.com/security/cve/CVE-2026-43958 vdb-entry
- RHBZ#2460932 issue-tracking