CVE-2026-88371
ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6()...
ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- None
- Integrity
- None
- Availability
- High
Exploit likelihood
What each source reports
CVE List Score used
ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.
- Record
CVE-2026-88371- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-682
- Updated
- 2026-11-02
EUVDEUVD-2026-86270
ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.
- Record
EUVD-2026-86270- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
GitHub AdvisoriesGHSA-437j-8v4m-47vv
ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6()...
ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.
- Record
GHSA-437j-8v4m-47vv- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-682
- Updated
- 2026-11-02
NVD
ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.
- Record
CVE-2026-88371- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Weakness
- CWE-682
- Updated
- 2026-11-02
OSVDEBIAN-CVE-2026-88371
ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.
- Record
DEBIAN-CVE-2026-88371- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2026-88371
ZBar commit 2ea2ca58 contains an undefined-behavior vulnerability in the Code 128 decode6() function. When processing specially crafted Code 128 input, decode_e() can return -1 for an invalid edge pattern, and decode6() subsequently left-shifts this negative signed value while constructing the edge signature. The operation invokes undefined behavior and can terminate trap-mode UBSan builds with SIGILL, resulting in denial of service.
- Record
UBUNTU-CVE-2026-88371- CVSS 3.1
- 5.5 Medium
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H - Updated
- 2026-11-02
OSVopenSUSE-SU-2026:12146-1 No score
libzbar-devel-0.23.95-2.1 on GA media
These are all security issues fixed in the libzbar-devel-0.23.95-2.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2026:12146-1- Updated
- 2026-11-02
Affected packages
| Package | Affected | Fixed |
|---|---|---|
zbarDebian:12 |
All versions, plus listed versions 0.23.92-70.23.92-7+deb12u10.23.92-80.23.92-90.23.93-1 Show 13 moreShow less0.23.93-1.10.23.93-1.1~exp10.23.93-100.23.93-20.23.93-30.23.93-40.23.93-50.23.93-60.23.93-70.23.93-80.23.93-90.23.95-10.23.95-2 |
None known |
zbarDebian:13 |
All versions, plus listed versions 0.23.93-100.23.93-80.23.93-90.23.95-10.23.95-2 |
None known |
zbarDebian:14 |
before 0.23.95-1, plus listed versions 0.23.93-100.23.93-80.23.93-9 |
0.23.95-1 |
zbarUbuntu:14.04:LTS |
All versions, plus listed versions 0.10+doc-90.10+doc-9build1 |
None known |
zbarUbuntu:Pro:16.04:LTS |
All versions, plus listed versions 0.10+doc-10build10.10+doc-10build20.10+doc-10ubuntu10.10+doc-10ubuntu1+esm1 |
None known |
zbarUbuntu:Pro:18.04:LTS |
All versions, plus listed versions 0.10+doc-10.1build20.10+doc-10.1ubuntu0.1~esm1 |
None known |
zbarUbuntu:Pro:20.04:LTS |
All versions, plus listed versions 0.23-1.10.23-1.20.23-1.30.23-1.3ubuntu0.1~esm1 |
None known |
zbarUbuntu:Pro:22.04:LTS |
All versions, plus listed versions 0.23.90-10.23.92-40.23.92-4build20.23.92-4ubuntu0.1~esm1 |
None known |
zbarUbuntu:24.04:LTS |
All versions, plus listed versions 0.23.92-80.23.92-90.23.93-10.23.93-1build10.23.93-4build10.23.93-4build20.23.93-4build3 |
None known |
zbarUbuntu:26.10 |
All versions, plus listed versions 0.23.93-9ubuntu10.23.93-9ubuntu2 |
None known |
zbarUbuntu:26.04:LTS |
All versions, plus listed versions 0.23.93-80.23.93-9ubuntu1 |
None known |
zbaropenSUSE:Tumbleweed |
before 0.23.95-2.1 | 0.23.95-2.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| first indexed | CVE List, EUVD, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2026-88371 is a medium vulnerability (CVSS 5.5) in zbar, published September 24, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.16%, the 5th percentile. Fixed in zbar 0.23.95-1.
References
github.com/mchehab/zbar/issues/336
nvd.nist.gov/vuln/detail/CVE-2026-88371
security-tracker.debian.org/tracker/CVE-2026-88371
ubuntu.com/security/CVE-2026-88371
cve.org/CVERecord?id=CVE-2026-88371
suse.com/security/cve/CVE-2026-88371