BIT-vault-2025-4166
Privilege Escalation vulnerability in vault (Go)
What is BIT-vault-2025-4166 About?
This is a Privilege Escalation Vulnerability in Hashicorp Vault. It allows an attacker to gain elevated access beyond their intended permissions. The specific details of exploitation are not provided but gaining higher privileges can lead to significant compromise of the system.
Affected Software
Technical Details
This vulnerability affects Hashicorp Vault (github.com/hashicorp/vault) and enables privilege escalation. While specific technical details are not provided in the description, privilege escalation vulnerabilities typically arise from flaws in authorization checks, improper handling of security contexts, or vulnerabilities in specific features that allow a user with lower privileges to assume higher privileges. This could involve manipulating API requests, exploiting misconfigurations, or leveraging bugs in permission enforcement logic. The attack vector would involve an authenticated user (or potentially an unauthenticated user if combined with another vulnerability) interacting with a specific function or endpoint within Vault in a way that bypasses its intended authorization model, thereby gaining escalated permissions.
What is the Impact of BIT-vault-2025-4166?
Successful exploitation may allow attackers to gain unauthorized elevated privileges, access sensitive data, modify system configurations, and potentially achieve full control over the affected system.
What is the Exploitability of BIT-vault-2025-4166?
Exploitation complexity for privilege escalation vulnerabilities in Vault can range from medium to high, often requiring an understanding of Vault's internal authorization mechanisms. Authentication is typically required, as an attacker would need an existing, lower-privileged account to escalate from. The exploitation generally occurs either locally through an improperly configured environment or remotely if the vulnerable endpoint is exposed. Key risk factors include misconfigurations of policies or roles, or specific bugs in Vault's permission enforcement logic that can be leveraged by an authenticated user.
What are the Known Public Exploits?
| PoC Author | Link | Commentary |
|---|---|---|
| No known exploits | ||
What are the Available Fixes for BIT-vault-2025-4166?
Available Upgrade Options
- github.com/hashicorp/vault
- >0.3.0, <1.19.3 → Upgrade to 1.19.3
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Book a demoAdditional Resources
- https://osv.dev/vulnerability/GO-2025-3663
- https://github.com/advisories/GHSA-gcqf-f89c-68hv
- https://pkg.go.dev/vuln/GO-2025-3663
- https://nvd.nist.gov/vuln/detail/CVE-2025-4166
- https://github.com/hashicorp/vault
- https://osv.dev/vulnerability/GHSA-gcqf-f89c-68hv
- https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin
- https://discuss.hashicorp.com/t/hcsec-2025-09-vault-may-expose-sensitive-information-in-error-logs-when-processing-malformed-data-with-the-kv-v2-plugin
What are Similar Vulnerabilities to BIT-vault-2025-4166?
Similar Vulnerabilities: CVE-2020-1748 , CVE-2021-39294 , CVE-2022-2468 , CVE-2023-25555 , CVE-2024-2904
