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Fencer Vulns
low 2.8

CVE-2026-1485 json

Glib: glib: local denial of service via buffer underflow in content type parsing

published 2026-01-27 9 mo ago modified 2026-11-06 2 d ago also EUVD-2026-4835

cvss
2.8
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 4%
public exploits
0
none known

Summary

A flaw was found in Glib's content type parsing logic. This buffer underflow vulnerability occurs because the length of a header line is stored in a signed integer, which can lead to integer wraparound for very large inputs. This results in pointer underflow and out-of-bounds memory access. Exploitation requires a local user to install or process a specially crafted treemagic file, which can lead to local denial of service or application instability.

Patch / fix

  • glib2.0 Debian 12 2.74.6-2+deb12u9
  • glib2.0 Debian 13 2.84.4-3~deb13u3
  • glib2.0 Debian 14 2.86.3-5

debian advisories DEBIAN-CVE-2026-1485

  • glib2.0 Ubuntu 22.04 LTS 2.72.4-0ubuntu2.9
  • glib2.0 Ubuntu 24.04 LTS 2.80.0-6ubuntu3.8
  • glib2.0 Ubuntu 25.10 2.86.0-2ubuntu0.3
  • glib2.0 Ubuntu 26.04 LTS 2.87.2-2

ubuntu advisories UBUNTU-CVE-2026-1485

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

  • glib2 Linux Micro 6.1 2.78.6-slfo.1.1_6.1
  • glib2 Linux Micro 6.0 2.76.2-12.1
  • glib2 SLES for SAP 15 SP6, SLES 15 SP6-LTSS, SLE Module for Basesystem 15 SP7 +1 more 2.78.6-150600.4.35.1
  • glib2 SLES 16.0, Linux Micro 6.2, SLES for SAP applications 16.0 2.84.4-160000.2.1
  • glib2 SLE Micro 5.2 2.62.6-150200.3.42.1
  • glib2 SLES LTSS Extended Security 12 SP5, SLES 12 SP5-LTSS 2.48.2-12.58.1

suse advisories SUSE-SU-2026:20493-1SUSE-SU-2026:20446-1SUSE-SU-2026:0373-1SUSE-SU-2026:0372-1SUSE-SU-2026:20210-1SUSE-SU-2026:20221-1

  • glib2 openSUSE Leap 16.0 2.84.4-160000.2.1
  • glib2 openSUSE Tumbleweed 2.86.3-3.1

opensuse advisories openSUSE-SU-2026:20150-1openSUSE-SU-2026:10111-1

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-2026-1485 updated cvss 2.8

Glib: Glib: Local denial of service via buffer underflow in content type parsing

  • Red Hat Enterprise Linux 6 glib2 Red Hat Enterprise Linux 7 glib2, glib2-fam, glib2-tests Red Hat Enterprise Linux 8 glib2, librsvg2, glib2-fam, glib2-tests, mingw-glib2, mingw32-glib2, +2 more Red Hat Enterprise Linux 9 bootc, glib2, librsvg2, glib2-tests, mingw-glib2, mingw32-glib2, +3 more Red Hat Enterprise Linux 10 bootc, glib2, loupe, papers, rpm-ostree, mingw-glib2, +3 more
    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 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
none
Automatable
no
Technical impact
partial
Assessed
9 mo ago

Exploit prediction

0.16% chance of exploitation in the next 30 days, higher than 4% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CNA 3.1 2.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L

Affected products

  • Red Hat Red Hat Enterprise Linux 10
  • Red Hat Red Hat Enterprise Linux 6
  • Red Hat Red Hat Enterprise Linux 7
  • Red Hat Red Hat Enterprise Linux 8
  • Red Hat Red Hat Enterprise Linux 9
  • Red Hat Red Hat OpenShift AI (RHOAI)

Classification

Weakness

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.