CVE-2026-1489— Glib: glib: memory corruption via integer overflow in unicode case conversion
Quick assessment
Affected
Red Hat Red Hat Enterprise Linux 10
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.
glib是GNOME项目的一个通用的、可移植的实用程序库。提供了许多有用的数据类型、宏、类型转换、字符串实用程序、文件实用程序、主循环抽象等。 glib存在缓冲区错误漏洞，该漏洞源于Unicode大小写转换实现中存在整数溢出，可能导致内存损坏和越界写入，造成应用程序崩溃或变得不稳定。
Possible ATT&CK Techniques 1 AI
T1190 · Exploit Public-Facing ApplicationAffected Version Matrix 16
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | any |
affected |
any |
affected | ||
any |
affected | ||
any |
affected | ||
any |
affected | ||
any |
affected | ||
any |
affected | ||
| Red Hat | Red Hat Enterprise Linux 6 | any |
affected |
| Red Hat | Red Hat Enterprise Linux 7 | any |
affected |
| Red Hat | Red Hat Enterprise Linux 8 | any |
affected |
any |
affected | ||
any |
affected | ||
| Red Hat | Red Hat Enterprise Linux 9 | any |
affected |
any |
affected | ||
any |
affected | ||
any |
affected |
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I. Basic Information for CVE-2026-1489
Vulnerability Information
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Vulnerability Title
Glib: glib: memory corruption via integer overflow in unicode case conversion
Source: CVE Program / CVE List V5
Vulnerability Description
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: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:L
Source: CVE Program / CVE List V5
Vulnerability Type
跨界内存写
Source: CVE Program / CVE List V5
Vulnerability Title
glib 缓冲区错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
glib是GNOME项目的一个通用的、可移植的实用程序库。提供了许多有用的数据类型、宏、类型转换、字符串实用程序、文件实用程序、主循环抽象等。 glib存在缓冲区错误漏洞，该漏洞源于Unicode大小写转换实现中存在整数溢出，可能导致内存损坏和越界写入，造成应用程序崩溃或变得不稳定。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
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| Red Hat | Red Hat Enterprise Linux 10 | - |
cpe:/o:redhat:enterprise_linux:10
|
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| Red Hat | Red Hat Enterprise Linux 6 | - |
cpe:/o:redhat:enterprise_linux:6
|
|
| Red Hat | Red Hat Enterprise Linux 7 | - |
cpe:/o:redhat:enterprise_linux:7
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 8 | - |
cpe:/o:redhat:enterprise_linux:8
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
| Red Hat | Red Hat Enterprise Linux 9 | - |
cpe:/o:redhat:enterprise_linux:9
|
|
II. Public POCs for CVE-2026-1489
| # | POC Description | Source Link | Shenlong Link |
|---|
AI-Generated POC
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No public POC found.
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Vendor Advisories for CVE-2026-1489 (1)
Same Patch Batch · Red Hat · 2026-01-27 · 4 CVEs total
| CVE-2026-1467 | 5.8 MEDIUM | Libsoup: libsoup: http header injection via specially crafted urls when an http proxy is c |
| CVE-2026-1484 | 4.2 MEDIUM | Glib: integer overflow leading to buffer underflow and out-of-bounds write in glib g_base6 |
| CVE-2026-1485 | 2.8 LOW | Glib: glib: local denial of service via buffer underflow in content type parsing |
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-
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Same weakness: CWE-787
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Security vulnerabilities have been found in IBM Verify Ident
V. Comments for CVE-2026-1489
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