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Vulnerability · Published Oct 7, 2026 · Assigned by redhat

CVE-2026-107170M17n-lib: null dereference in minput_open_im() after failed m17n_init()

Low 2.9

In plain English

A low-severity null pointer dereference in Red Hat Enterprise Linux 10 from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 1% of all known vulnerabilities).

Severity (CVSS 3.1)2.9Low
Exploit odds (30 days)0.1%top 99.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

A flaw was found in m17n-lib. A partial failure during library initialization can leave an internal driver pointer uninitialized. Under specific error conditions, such as system resource exhaustion or database corruption, an application attempting to open an input method dereferences this null pointer without proper validation. This issue causes the application to crash, resulting in a Denial of Service (DoS).

Affected packages & fixed versions

EcosystemPackageFixed inAdvisory
Debian:12m17n-libno fix listedDEBIAN-CVE-2026-107170
Debian:13m17n-libno fix listedDEBIAN-CVE-2026-107170
Debian:14m17n-libno fix listedDEBIAN-CVE-2026-107170
Ubuntu:22.04:LTSm17n-libno fix listedUBUNTU-CVE-2026-107170
Ubuntu:24.04:LTSm17n-libno fix listedUBUNTU-CVE-2026-107170
Ubuntu:26.04:LTSm17n-libno fix listedUBUNTU-CVE-2026-107170
Ubuntu:26.10m17n-libno fix listedUBUNTU-CVE-2026-107170

Affected products (as reported)

VendorProductVersions
Red Hat Red Hat Enterprise Linux 10 see references
Red Hat Red Hat Enterprise Linux 6 see references
Red Hat Red Hat Enterprise Linux 7 see references
Red Hat Red Hat Enterprise Linux 8 see references
Red Hat Red Hat Enterprise Linux 9 see references

Weakness: CWE-476 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L

References