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CVE-2026-1489

Glib: glib: memory corruption via integer overflow in unicode case conversion

CVSS 3.1 5.4 MEDIUMCheck source for fixed versionsKEV status unknown
Original advisory

cve-program · CVE-2026-1489

Published

A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.

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Affected versions, risk and source history

Exploitation and risk

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cve-program · CVE-2026-1489

Published

Glib: glib: memory corruption via integer overflow in unicode case conversion

A flaw was found in GLib. An integer overflow vulnerability in its Unicode case conversion implementation can lead to memory corruption. By processing specially crafted and extremely large Unicode strings, an attacker could trigger an undersized memory allocation, resulting in out-of-bounds writes. This could cause applications utilizing GLib for string conversion to crash or become unstable.

Source published
27 Jan 2026 14:26:47 UTC
Source modified
6 Nov 2026 07:51:43 UTC
Saved here
6 Nov 2026 08:36:20 UTC
Source terms
CVE Program Terms of Use

Original source record · Cite this exact observation · Complete original publisher JSON

Source: cve-program · CVE Program Terms of Use. The publisher's wording is preserved. ChangeIntel groups the information and labels changes. The JSON record includes additional source fields.

CVSS 3.1 · 5.4 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L

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