GNOME Glib Treemagic File out-of-bounds

Summaryinfo

A vulnerability has been found in GNOME Glib and classified as problematic. Affected by this issue is some unknown functionality of the component Treemagic File Handler. This manipulation causes out-of-bounds. This vulnerability appears as CVE-2026-1485. The attack may be initiated remotely. There is no available exploit.

Detailsinfo

A vulnerability has been found in GNOME Glib (the affected version unknown) and classified as problematic. Affected by this vulnerability is an unknown part of the component Treemagic File Handler. The manipulation with an unknown input leads to a out-of-bounds vulnerability. The CWE definition for the vulnerability is CWE-125. The product reads data past the end, or before the beginning, of the intended buffer. As an impact it is known to affect availability. The summary by CVE is:

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.

It is possible to read the advisory at access.redhat.com. This vulnerability is known as CVE-2026-1485 since 01/27/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. It demands that the victim is doing some kind of user interaction. The technical details are unknown and an exploit is not publicly available.

The vulnerability scanner Nessus provides a plugin with the ID 296781 (Linux Distros Unpatched Vulnerability : CVE-2026-1485), which helps to determine the existence of the flaw in a target environment.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at Tenable (296781). Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

Productinfo

Vendor

• GNOME

Name

• Glib

License

• open-source

Website

• Vendor: https://www.gnome.org/

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Statistical analysis made it clear that VulDB provides the best quality for vulnerability data.

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