CVE-2026-1386 Vulnerability Analysis & Exploit Details

CVE-2026-1386
Vulnerability Scoring

6.0

/10

Significant Risk

Security assessments indicate that CVE-2026-1386 presents a notable risk, potentially requiring prompt mitigation.

Attack Complexity Details

Attack Complexity: Low
Exploits can be performed without significant complexity or special conditions.
Attack Vector: Local
Vulnerability requires local system access.
Privileges Required: High
High-level privileges are required for exploitation.
Scope: Unchanged
Exploit remains within the originally vulnerable component.
User Interaction: None
No user interaction is necessary for exploitation.

CVE-2026-1386 Details

Status: Analyzed

Last updated: 🕟 30 Jan 2026, 16:57 UTC
Originally published on: 🕘 23 Jan 2026, 21:15 UTC

Time between publication and last update: 6 days

CVSS Release: version 3

CVSS3 Source

ff89ba41-3aa1-4d27-914a-91399e9639e5

CVSS3 Type

Secondary

CVSS3 Vector

CVSS:3.1/AV:L/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:H

CVE-2026-1386 Vulnerability Summary

CVE-2026-1386: A UNIX symbolic link following issue in the jailer component in Firecracker version v1.13.1 and earlier and 1.14.0 on Linux may allow a local host user with write access to the pre-created jailer directories to overwrite arbitrary host files via a symlink attack during the initialization copy at jailer startup, if the jailer is executed with root privileges. To mitigate this issue, users should upgrade to version v1.13.2 or 1.14.1 or above.

Assessing the Risk of CVE-2026-1386

Access Complexity Graph

The exploitability of CVE-2026-1386 depends on two key factors: attack complexity (the level of effort required to execute an exploit) and privileges required (the access level an attacker needs).

Exploitability Analysis for CVE-2026-1386

The exploitability of CVE-2026-1386 is influenced by multiple factors. Security teams should analyze system configurations and apply appropriate countermeasures to mitigate threats.

Understanding AC and PR

A lower complexity and fewer privilege requirements make exploitation easier. Security teams should evaluate these aspects to determine the urgency of mitigation strategies, such as patch management and access control policies.

Attack Complexity (AC) measures the difficulty in executing an exploit. A high AC means that specific conditions must be met, making an attack more challenging, while a low AC means the vulnerability can be exploited with minimal effort.

Privileges Required (PR) determine the level of system access necessary for an attack. Vulnerabilities requiring no privileges are more accessible to attackers, whereas high privilege requirements limit exploitation to authorized users with elevated access.

CVSS Score Breakdown Chart

Above is the CVSS Sub-score Breakdown for CVE-2026-1386, illustrating how Base, Impact, and Exploitability factors combine to form the overall severity rating. A higher sub-score typically indicates a more severe or easier-to-exploit vulnerability.

CIA Impact Analysis

Below is the Impact Analysis for CVE-2026-1386, showing how Confidentiality, Integrity, and Availability might be affected if the vulnerability is exploited. Higher values usually signal greater potential damage.

Confidentiality: None
CVE-2026-1386 has no significant impact on data confidentiality.
Integrity: High
CVE-2026-1386 could allow unauthorized modifications to data, potentially affecting system reliability and trust.
Availability: High
CVE-2026-1386 can disrupt system operations, potentially causing complete denial of service (DoS).

CVE-2026-1386 References

External References

CWE Common Weakness Enumeration

CWE-61

CAPEC Common Attack Pattern Enumeration and Classification

Leveraging Race Conditions via Symbolic Links CAPEC-27 This attack leverages the use of symbolic links (Symlinks) in order to write to sensitive files. An attacker can create a Symlink link to a target file not otherwise accessible to them. When the privileged program tries to create a temporary file with the same name as the Symlink link, it will actually write to the target file pointed to by the attackers' Symlink link. If the attacker can insert malicious content in the temporary file they will be writing to the sensitive file by using the Symlink. The race occurs because the system checks if the temporary file exists, then creates the file. The attacker would typically create the Symlink during the interval between the check and the creation of the temporary file.

Vulnerable Configurations

cpe:2.3:a:amazon:firecracker:-:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:-:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.1.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.1.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.1.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.2.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.3.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.4.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.5.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.6.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.7.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.7.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.8.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.8.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.9.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.9.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.10.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.10.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.10.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.10.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.11.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.11.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.12.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.12.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.13.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.13.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.14.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.14.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.15.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.15.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.15.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.15.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.15.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.15.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.16.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.16.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.17.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.17.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.18.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.18.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.18.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.18.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.19.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.19.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.19.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.19.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.20.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.20.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.20.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.20.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.21.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.21.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.21.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.21.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.21.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.21.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.21.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.21.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.4:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.22.4:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.4:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.4:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.5:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.23.5:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.4:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.4:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.5:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.5:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.6:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.24.6:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.25:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.25:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.25.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.25.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.25.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.25.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.25.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.25.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.26:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:0.26:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.0.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.0.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.0.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.1.4:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.2.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.2.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.3.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.3.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.3.2:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.3.3:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.4.0:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.4.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.5.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.5.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.5.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.5.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.5.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.6.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.6.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.6.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.6.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.7.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.7.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.7.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.7.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.8.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.8.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.8.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.8.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.9.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.9.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.9.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.9.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.9.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.9.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.10.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.10.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.10.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.10.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.10.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.10.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.11.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.11.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.12.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.12.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.12.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.12.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.12.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.12.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.13.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.13.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.13.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.13.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.13.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.13.1:*:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.14.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.14.0:-:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.14.0:dev:*:*:*:*:*:*
cpe:2.3:a:amazon:firecracker:1.14.0:dev:*:*:*:*:*:*

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