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CVE-2026-107170

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

2.9 LowFix available

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).

Attack profile

How easy it is to exploit

Attack vector
Local
Complexity
High
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
Low

Exploit likelihood

0.10%Unchanged since Oct 8, 2026
90%50%10%1%

What each source reports

CVE List Score used 2.9

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

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).

Record
CVE-2026-107170
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-476
Updated
2026-11-06
EUVDEUVD-2026-94315 2.9

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).

Record
EUVD-2026-94315
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-06
GitHub AdvisoriesGHSA-68gr-gg8g-xpjj 2.9

A flaw was found in m17n-lib. A partial failure during library initialization can leave an...

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).

Record
GHSA-68gr-gg8g-xpjj
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-476
Updated
2026-11-02
NVD 2.9

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).

Record
CVE-2026-107170
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Weakness
CWE-476
Updated
2026-11-06
OSVDEBIAN-CVE-2026-107170 2.9

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).

Record
DEBIAN-CVE-2026-107170
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-07
OSVUBUNTU-CVE-2026-107170 2.9

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).

Record
UBUNTU-CVE-2026-107170
CVSS 3.1
2.9 LowCVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L
Updated
2026-11-02
OSVopenSUSE-SU-2026:12213-1 No score

ibus-typing-booster-2.31.2-1.1 on GA media

These are all security issues fixed in the ibus-typing-booster-2.31.2-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:12213-1
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
m17n-lib
Debian:12
 All versions, plus listed versions
1.8.0-61.8.2-11.8.3-11.8.3-21.8.4-1
Show 4 moreShow less
1.8.4-21.8.5-11.8.6-11.8.7-1
 None known
m17n-lib
Debian:13
 All versions, plus listed versions
1.8.5-11.8.6-11.8.7-1
 None known
m17n-lib
Debian:14
 All versions, plus listed versions
1.8.5-11.8.6-11.8.7-1
 None known
m17n-lib
Ubuntu:16.04:LTS
 All versions, plus listed versions
1.6.4-31.7.0-11.7.0-21.7.0-3
 None known
m17n-lib
Ubuntu:18.04:LTS
 All versions, plus listed versions
1.7.0-31.7.0-3build1
 None known
m17n-lib
Ubuntu:20.04:LTS
 All versions, plus listed versions
1.8.0-2
 None known
m17n-lib
Ubuntu:22.04:LTS
 All versions, plus listed versions
1.8.0-2build11.8.0-31.8.0-3build11.8.0-3.11.8.0-4
 None known
m17n-lib
Ubuntu:24.04:LTS
 All versions, plus listed versions
1.8.4-11.8.4-1build11.8.4-1build2
 None known
m17n-lib
Ubuntu:26.10
 All versions, plus listed versions
1.8.6-1
 None known
m17n-lib
Ubuntu:26.04:LTS
 All versions, plus listed versions
1.8.5-1build11.8.6-1
 None known
ibus-typing-booster
openSUSE:Tumbleweed
 before 2.31.2-1.1
2.31.2-1.1

History

History
RecordedChangedSources
affectedEUVD, NVD, OSV
factsCVE List
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-107170 is a low vulnerability (CVSS 2.9) in Red Hat Enterprise Linux 10, published October 7, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.10%, the 0th percentile. Fixed in ibus-typing-booster 2.31.2-1.1.

References

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