Vulnerability · Published Oct 15, 2026 · Assigned by VulnCheck
CVE-2026-111142Zziplib through 0.13.80 Out-of-Bounds Read via zzip_disk_findfirst
Medium 5.5
In plain English
A medium-severity out-of-bounds read in zziplib from gdraheim. 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 2% of all known vulnerabilities).
Severity (CVSS 3.1)5.5Medium
Exploit odds (30 days)0.1%top 97.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official description
Zziplib through 0.13.80 contains an out-of-bounds read vulnerability in zzip/mmapped.c that allows attackers to over-read heap memory via a crafted ZIP central directory. Attackers can craft an end-of-central-directory record placing the first entry near the buffer end, causing zzip_disk_entry_strdup_name to read past the buffer and crash the application.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian:12 | zziplib | no fix listed | DEBIAN-CVE-2026-111142 |
| Debian:13 | zziplib | no fix listed | DEBIAN-CVE-2026-111142 |
| Debian:14 | zziplib | no fix listed | DEBIAN-CVE-2026-111142 |
| Ubuntu:22.04:LTS | zziplib | no fix listed | UBUNTU-CVE-2026-111142 |
| Ubuntu:24.04:LTS | zziplib | no fix listed | UBUNTU-CVE-2026-111142 |
| Ubuntu:26.04:LTS | zziplib | no fix listed | UBUNTU-CVE-2026-111142 |
| Ubuntu:26.10 | zziplib | no fix listed | UBUNTU-CVE-2026-111142 |
Affected products (as reported)
Weakness: CWE-125 · Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H
References
- https://hackmd.io/@haind-pwn/zziplib-zip-central-directory-oob-read technical-description
- https://github.com/gdraheim/zziplib/blob/f58313c1f65f46bf73f3526d1afd4d6bb46cc4ae/zzip/mmapped.c#L420-L497 technical-description
- https://github.com/gdraheim/zziplib/blob/f58313c1f65f46bf73f3526d1afd4d6bb46cc4ae/zzip/mmapped.c#L323-L352 technical-description
- https://github.com/gdraheim/zziplib product
- VulnCheck Advisory: Zziplib through 0.13.80 Out-of-Bounds Read via zzip_disk_findfirst third-party-advisory