Skip to content
Fencer Vulns
medium 5.5

CVE-2026-15059 json

systemd-oomd: unprivileged users can terminate arbitrary processes

published 2026-08-10 2 mo ago modified 2026-10-23 16 d ago also EUVD-2026-55625

cvss
5.5
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.2%
EPSS 0.2% chance of exploitation in 30 days, percentile 5%
public exploits
0
none known

Summary

Local unprivileged users can terminate arbitrary local processes via a systemd-oomd IPC API due to a missing path traversal validation.

Patch / fix

  • systemd systemd-oomd 261, 260.3, 259.7, 258.9
  • systemd Debian 14 261~rc3-1

debian advisories DEBIAN-CVE-2026-15059

  • systemd Ubuntu 22.04 LTS 249.11-0ubuntu3.22
  • systemd Ubuntu 24.04 LTS 255.4-1ubuntu8.17
  • systemd Ubuntu 26.04 LTS 259.5-0ubuntu3.4

ubuntu advisories UBUNTU-CVE-2026-15059

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • systemd hummingbird 1 261.2-1.hum1
  • systemd-pam hummingbird 1 261.2-1.hum1
  • systemd-libs hummingbird 1 261.2-1.hum1
  • systemd-udev hummingbird 1 261.2-1.hum1
  • systemd-tests hummingbird 1 261.2-1.hum1
  • systemd-ukify hummingbird 1 261.2-1.hum1
  • systemd-shared hummingbird 1 261.2-1.hum1
  • systemd-networkd hummingbird 1 261.2-1.hum1

red hat advisories RHSA-2026:46016

  • systemd Azure Linux 3.0 255-34
  • systemd-bootstrap Azure Linux 3.0 250.3-20

azure linux advisories AZL-95640AZL-95646

Azure Linux vulnerability data, Copyright (c) Microsoft Corporation, from https://github.com/microsoft/AzureLinuxVulnerabilityData via OSV, under the MIT licence; changed: normalised to fixed package versions per release. MIT

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2026-15059 updated cvss 5.5

systemd: systemd-oomd: Unprivileged users can terminate arbitrary processes via IPC API

  • Red Hat Enterprise Linux 9 systemd, systemd-pam, systemd-libs, systemd-oomd, systemd-udev, systemd-ukify, +6 more Red Hat Enterprise Linux 10 systemd
    affected: workaround, no fix available “Fix deferred”
  • Red Hat OpenShift AI (RHOAI) rhoai/odh-core-bff-rhel9, rhoai/odh-dashboard-rhel9, rhoai/odh-mod-arch-maas-rhel9, rhoai/odh-mod-arch-automl-rhel9, rhoai/odh-mod-arch-gen-ai-rhel9, rhoai/odh-mod-arch-mlflow-rhel9, +6 more
    under investigation
  • Red Hat Hardened Images systemd 261.2-1.hum1, systemd-pam 261.2-1.hum1, systemd-libs 261.2-1.hum1, systemd-udev 261.2-1.hum1, systemd-tests 261.2-1.hum1, systemd-ukify 261.2-1.hum1, +14 more
    fixed: vendor fix RHSA-2026:46016
  • Red Hat Enterprise Linux 7 systemd, libgudev1, systemd-libs, systemd-sysv, systemd-python, systemd-networkd, +2 more Red Hat Enterprise Linux 8 systemd, systemd-pam, systemd-libs, systemd-udev, systemd-tests, systemd-container, +1 more Red Hat OpenShift AI (RHOAI) rhoai/odh-mlflow-rhel9, rhoai/odh-kube-rbac-proxy-rhel9, rhoai/odh-maas-controller-rhel9, rhoai/odh-mlflow-operator-rhel9, rhoai/odh-model-controller-rhel9, rhoai/odh-ogx-k8s-operator-rhel9, +14 more
    not affected: vulnerable code not present

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
2 mo ago

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 5% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/systemd/systemd/security/advisories/GHSA-652q-wxr6-h5j6 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 3.1 5.5 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Affected products

  • systemd systemd-oomd

Classification

Weakness
  • CWE-22 Improper Limitation of a Pathname to a Restricted Directory
  • CWE-59 Improper Link Resolution Before File Access

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.