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02 Records

01 Record

CVE-2026-15588

Gdbusserver: glib2: gdbusserver pre-authentication dos via unbounded sasl line buffering

MediumPUBLISHEDCNA: redhat

CNA base score5.3 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

02 Description

Gdbusserver: glib2: gdbusserver pre-authentication dos via unbounded sasl line buffering

03 Exploitation and scoring

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.21% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 10.7% of scored records. A rank, not a probability.

NVD base score

5.3 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

NVD analysis status

Awaiting Analysis. NVD last modified this record on 2026-09-01.

Red Hat severity

Moderate. Red Hat's rating for its own products, not a CVSS rating.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-07-20 12:12Z1 MO AGO

Last updated

2026-09-01 12:47Z3 DAYS AGO

Reserved

2026-07-13

Assigning CNA

redhat

Record state

PUBLISHED

Severity

Medium (CVSS 5.3)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

Weaknesses

CWE-770Allocation of Resources Without Limits or ThrottlingBase

Data version

5.2

Document digest

5349f4a9b10a2244c4b07ed8d89fef1e9d8d1ca72968ac1131a2046c091a67d4

05 Affected products

VendorProductVersionsPlatforms

Red HatRed Hat Enterprise Linux 10Not specified—

Red HatRed Hat Enterprise Linux 8Not specified—

Red HatRed Hat Enterprise Linux 9Not specified—

Red HatRed Hat Discovery 2Not specified—

Red HatRed Hat Hardened ImagesNot specified—

Red HatRed Hat Update Infrastructure 5Not specified—

Red HatRed Hat Enterprise Linux 6Not specified—

Red HatRed Hat Enterprise Linux 7Not specified—

Red HatRed Hat OpenShift Container Platform 4Not specified—

06 References

access.redhat.comRHSA-2026:39985https://access.redhat.com/errata/RHSA-2026:39985vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:40485https://access.redhat.com/errata/RHSA-2026:40485vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:42329https://access.redhat.com/errata/RHSA-2026:42329vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:55440https://access.redhat.com/errata/RHSA-2026:55440vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:57015https://access.redhat.com/errata/RHSA-2026:57015vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:58981https://access.redhat.com/errata/RHSA-2026:58981vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:61766https://access.redhat.com/errata/RHSA-2026:61766vendor-advisoryx_refsource_REDHAT
access.redhat.comRHSA-2026:61783https://access.redhat.com/errata/RHSA-2026:61783vendor-advisoryx_refsource_REDHAT
access.redhat.comhttps://access.redhat.com/security/cve/CVE-2026-15588vdb-entryx_refsource_REDHAT
bugzilla.redhat.comRHBZ#2499675https://bugzilla.redhat.com/show_bug.cgi?id=2499675issue-trackingx_refsource_REDHAT
gitlab.gnome.orghttps://gitlab.gnome.org/GNOME/glib/-/issues/3985