CVE catalog
CVE-2026-109854
A flaw was found in m17n-lib. An attacker who supplies crafted input to an application processing ISO-2022 encoded text can cause the library to read uninitialized memory from the stack. If the applic
- Severity
- Low · CVSS 2.5
CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:N - Published
- Updated
- Source
- [NVD] · [CVE record]
- EPSS
- 0.12% · Oct 25, 2026
A flaw was found in m17n-lib. An attacker who supplies crafted input to an application processing ISO-2022 encoded text can cause the library to read uninitialized memory from the stack. If the application exposes or returns the decoded output, this flaw can result in unexpected behavior and limited information disclosure.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | m17n-lib | sid | 1.8.7-1 | fixed |
| Debian | m17n-lib | forky | 1.8.7-1 | fixed |
| Debian | m17n-lib | trixie | 1.8.5-1 | vulnerable |
| Debian | m17n-lib | bookworm | 1.8.0-6 | vulnerable |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | m17n-lib | source | sid | 1.8.7-1 | not yet assigned | Not reported | [1150903] |
| Debian | m17n-lib | source | forky | 1.8.7-1 | not yet assigned | Not reported | [1150903] |
| Debian | m17n-lib | source | trixie | (unfixed) | not yet assigned | Not reported | [1150903] |
| Debian | m17n-lib | source | bookworm | (unfixed) | not yet assigned | Not reported | [1150903] |
Notes
[trixie] m17n-lib: Minor issue [bookworm] m17n-lib: Minor issue; can be fixed in next update
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [libm17n-0]Affected
Source package: [m17n-lib]
Details (2)
1.8.0-6· amd64 · bookwormAffected
nvd · m17n-lib · debian · bookworm; nvd · m17n-lib · debian · 12
1.8.0-6· arm64 · bookwormAffected
nvd · m17n-lib · debian · bookworm; nvd · m17n-lib · debian · 12
- [libm17n-dev]Affected
Source package: [m17n-lib]
Details (2)
1.8.0-6· amd64 · bookwormAffected
nvd · m17n-lib · debian · bookworm; nvd · m17n-lib · debian · 12
1.8.0-6· arm64 · bookwormAffected
nvd · m17n-lib · debian · bookworm; nvd · m17n-lib · debian · 12
- [m17n-lib-bin]Affected
Source package: [m17n-lib]
Details (2)
1.8.0-6· amd64 · bookwormAffected
nvd · m17n-lib · debian · bookworm; nvd · m17n-lib · debian · 12
1.8.0-6· arm64 · bookwormAffected
nvd · m17n-lib · debian · bookworm; nvd · m17n-lib · debian · 12
- [m17n-lib-mimx]Affected
Source package: [m17n-lib]
Details (2)
1.8.0-6· amd64 · bookwormAffected
nvd · m17n-lib · debian · bookworm; nvd · m17n-lib · debian · 12
1.8.0-6· arm64 · bookwormAffected
nvd · m17n-lib · debian · bookworm; nvd · m17n-lib · debian · 12
[Debian 13 (Trixie)]
- [libm17n-0]Affected
Source package: [m17n-lib]
Details (2)
1.8.5-1· amd64 · trixieAffected
nvd · m17n-lib · debian · 13
1.8.5-1· arm64 · trixieAffected
nvd · m17n-lib · debian · 13
- [libm17n-dev]Affected
Source package: [m17n-lib]
Details (2)
1.8.5-1· amd64 · trixieAffected
nvd · m17n-lib · debian · 13
1.8.5-1· arm64 · trixieAffected
nvd · m17n-lib · debian · 13
- [m17n-lib-bin]Affected
Source package: [m17n-lib]
Details (2)
1.8.5-1· amd64 · trixieAffected
nvd · m17n-lib · debian · 13
1.8.5-1· arm64 · trixieAffected
nvd · m17n-lib · debian · 13
- [m17n-lib-mimx]Affected
Source package: [m17n-lib]
Details (2)
1.8.5-1· amd64 · trixieAffected
nvd · m17n-lib · debian · 13
1.8.5-1· arm64 · trixieAffected
nvd · m17n-lib · debian · 13
Observed:
References
- [https://nvd.nist.gov/vuln/detail/CVE-2026-109854]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2026-109854]
- [https://security-tracker.debian.org/tracker/CVE-2026-109854]
- [https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-109854.json]
[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]