CVE-2026-114105
Description
A flaw was found in adm-zip. This vulnerability allows an attacker to achieve privilege escalation when an archive is extracted with the option to preserve original permissions enabled. By providing a specially crafted ZIP archive containing elevated permission attributes, unmasked execution flags are applied to the extracted files. If the extraction is performed by an administrative or privileged account, an attacker can subsequently run these files to gain unauthorized elevated access.
Statement
This vulnerability is rated as Moderate severity because exploitation requires non-default settings alongside privileged execution, limiting the blast radius in standard production environments. The flaw can only be triggered if an application specifically enables preservation of original file permissions and unpacks an untrusted archive under an administrative context such as root. In typical Red Hat deployments, containerized workloads and services execute with restricted user privileges, preventing untrusted binaries from acquiring setuid or elevated rights.
Mitigation
Update bundled adm-zip to ≥ 0.6.1; avoid enabling keepOriginalPermission; or perform extractions as an unprivileged user.
Common Vulnerability Scoring System (CVSS) Score Details
Info alert:Important note
CVSS scores for open source components depend on vendor-specific factors (e.g. version or build chain). Therefore, Red Hat's score and impact rating can be different from NVD and other vendors. Red Hat remains the authoritative CVE Naming Authority (CNA) source for its products and services (see Red Hat classifications).
The following CVSS metrics and score provided are preliminary and subject to review.
CVSS v3 Score Breakdown
| Red Hat | NVD | cve.org | |
|---|---|---|---|
| Base Score | 6.2 | N/A | 6.2 |
| Attack Vector | Local | N/A | Local |
| Attack Complexity | Low | N/A | Low |
| Privileges Required | None | N/A | None |
| User Interaction | None | N/A | None |
| Scope | Unchanged | N/A | Unchanged |
| Confidentiality | None | N/A | None |
| Integrity Impact | High | N/A | High |
| Availability Impact | None | N/A | None |
Vector
Red Hat: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
cve.org: CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Understanding the Weakness (CWE)
Confidentiality,Integrity
Technical Impact: Read Application Data; Modify Application Data
Frequently Asked Questions
Not sure what something means? Check out our Security Glossary.
Want to get errata notifications? Sign up here.
