CVE-2026-1485 | Glib: glib: local denial of service via buffer underflow in content type parsing

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.

Published: 2026-01-27 Last update: 2026-04-15 Assigner: [email protected] Source: [email protected]
NVD Status：Deferred，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-1485 is rated Low Risk (11.8/100): CVSS Low severity, with low exploitation likelihood (EPSS 0.01%). Low composite risk—no urgent action required; patch on your normal maintenance cycle and revisit priority if CVSS or EPSS increases.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-1485

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-01-28 — 0.01% —

Full EPSS history (1 record total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-1485

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
2.8 3.1 LOW
CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:L Click to expand
Attack vector (AV:L)
They already need access on the box, or another person has to do something wrong; it’s not a remote drive-by.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:R)
A real person has to do something—click, install, enable—otherwise it doesn’t land.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:N)
Doesn’t really leak secrets in a meaningful way.
Integrity (I:N)
Data isn’t meaningfully altered or forged.
Availability (A:L)
Might cause slowdowns, glitches, or partial disruption—not a full brick.
 1.3 1.4 [email protected]

Weakness enumeration for CVE-2026-1485

OS Trackers for CVE-2026-1485

vendor priority summary link
debian not yet assigned CVE-2026-1485 not yet assigned priority: Debian including 1 source packages (glib2.0), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2026-1485
redhat low — https://access.redhat.com/security/cve/CVE-2026-1485
suse low CVE-2026-1485 severity low: SUSE including 400 source package names (13.2-9.67:coreutils-9.4-5.1, 13.2-9.67:libglib-2_0-0-2.76.2-12.1, …), 1348 product×package rows across 166 product lines (Container suse/manager/5.0/x86_64/proxy-httpd, Container suse/manager/5.0/x86_64/proxy-salt-broker, … (166 product lines)): Fixed 1100, Known Affected 231, First Fixed 17. https://www.suse.com/security/cve/CVE-2026-1485/
ubuntu medium CVE-2026-1485 medium priority: Ubuntu including 1 source packages (glib2.0), 8 status rows across 8 suites (bionic, focal, jammy, noble, questing, trusty, upstream, xenial): needed 4, released 4. https://ubuntu.com/security/CVE-2026-1485

Affected software / configurations for CVE-2026-1485

Vendor Product Version Raw CPE
No affected products in dataset.

References for CVE-2026-1485

cvelogic Threat Intelligence