CVE-2026-15588Gdbusserver: glib2: gdbusserver pre-authentication dos via unbounded sasl line buffering
Updated under an hour ago ()
Does this affect you?
It affects Red Hat Enterprise Linux 10 and 14 other products. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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A denial-of-service and resource exhaustion vulnerability exists within the `GDBus` component of GLib. The `gdbusauth` authentication mechanism fails to enforce proper length limitations on data lines read from a client. An unauthenticated local or remote attacker can exploit this lack of input validation by sending excessively long streams of data, causing the application to consume massive amounts of system memory and CPU, potentially leading to a crash or system hang.
- CVSS
- 5.3 MEDIUM (v3.1, CNA)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L
- Weakness (CWE)
- CWE-770
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- redhat
- NVD analysis
- Awaiting Analysis
- Record last updated
- Oct 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Red Hat Red Hat Enterprise Linux 10 redhat:enterprise_linux | from 0:2.80.4-12.el10_2.21 not affected | CNA record |
Red Hat Red Hat Enterprise Linux 10.0 Extended Update Support redhat:enterprise_linux_eus | from 0:2.80.4-4.el10_0.17 not affected | CNA record |
from 0:2.56.1-13.el7_9.1 not affected | CNA record | |
from 0:2.56.4-10.el8_4.7 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 8.4 Advanced Mission Critical Update Support redhat:rhel_eus_long_life | from 0:2.56.4-10.el8_4.7 not affected | CNA record |
from 0:2.56.4-165.el8_8.2 not affected | CNA record | |
from 0:2.56.4-165.el8_8.2 not affected | CNA record | |
Red Hat Red Hat Enterprise Linux 9.6 Extended Update Support redhat:rhel_eus | from 0:2.68.4-16.el9_6.7 not affected | CNA record |
Red Hat Cert Manager support for Red Hat OpenShift release 1.17 redhat:cert_manager | from 1791371080 not affected | CNA record |
Red Hat Red Hat AI Inference Server 3.2 redhat:ai_inference_server | from 1790621714 not affected | CNA record |
Red Hat Red Hat Discovery 2 redhat:discovery | from 1788205779 not affected | CNA record |
Red Hat Red Hat Hardened Images redhat:hummingbird | from 2.89.1-1.1.hum1 not affected | CNA record |
Red Hat Red Hat OpenShift AI 3.0 redhat:openshift_ai | from 1790276886 not affected | CNA record |
Red Hat Red Hat Update Infrastructure 5 redhat:rhui | from 1787241211 not affected | CNA record |
Red Hat Red Hat OpenShift Container Platform 4 redhat:openshift | 4 | CNA record |
References
- https://access.redhat.com/errata/RHSA-2026:39985vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:40485vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:42329vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:55440vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:57015vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:58981vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:61766vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:61783vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:63135vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:63138vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:63140vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65762vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65763vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65767vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65768vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65769vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65770vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65771vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:65773vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:66018vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72394vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72395vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72399vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72470vendor-advisory, x-refsource-redhat
- https://access.redhat.com/errata/RHSA-2026:72475vendor-advisory, x-refsource-redhat
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.