Nixpkgs security tracker

Try the new UI
Login with GitHub

Suggestion detail

Untriaged
Permalink CVE-2026-71543
7.5 HIGH
  • CVSS version (CVSS): 4.0
  • Attack Vector (AV): Network (N)
  • Attack Complexity (AC): Low (L)
  • Attack Requirement (AT): Present (P)
  • Privileges Required (PR): High (H)
  • User Interaction (UI): None (N)
  • Vulnerable System Impact Confidentiality (VC): High (H)
  • Vulnerable System Impact Integrity (VI): High (H)
  • Vulnerable System Impact Availability (VA): High (H)
  • Subsequent System Impact Confidentiality (SC): None (N)
  • Subsequent System Impact Integrity (SI): None (N)
  • Subsequent System Impact Availability (SA): None (N)
  • Modified Attack Vector (MAV): Network (N)
  • Modified Attack Complexity (MAC): Low (L)
  • Modified Attack Requirement (MAT): Present (P)
  • Modified Privileges Required (MPR): High (H)
  • Modified User Interaction (MUI): None (N)
  • Modified Vulnerable System Impact Confidentiality (MVC): High (H)
  • Modified Vulnerable System Impact Integrity (MVI): High (H)
  • Modified Vulnerable System Impact Availability (MVA): High (H)
  • Modified Subsequent System Impact Confidentiality (MSC): Negligible (N)
  • Modified Subsequent System Impact Integrity (MSI): Negligible (N)
  • Modified Subsequent System Impact Availability (MSA): Negligible (N)
  • Safety (S): Not Defined (X)
  • Automatable (AU): Not Defined (X)
  • Recovery (R): Not Defined (X)
  • Value Density (V): Not Defined (X)
  • Vulnerability Response Effort (RE): Not Defined (X)
  • Provider Urgency (U): Not Defined (X)
  • Confidentiality Req. (CR): Not Defined (X)
  • Integrity Req. (IR): Not Defined (X)
  • Availability Req. (AR): Not Defined (X)
  • Exploit Maturity (E): Not Defined (X)
created 6 days, 1 hour ago Activity log
  • Created suggestion 6 days, 1 hour ago
OpenBao's Templated Policies Allow Privilege Escalation via Wildcard Characters

OpenBao is an open source identity-based secrets management system. Prior to 2.6.0, templated ACL, PKI, and SSH policies could substitute attacker-controlled identity data without rejecting syntax-significant characters. In ACL templated policies, asterisks, plus signs, and slashes could alter path matching. In PKI allowed_uri_sans_template and allowed_domains policies, an asterisk could broaden certificate issuance to unauthorized domains. In SSH allowed_users and allowed_domains policies, a comma could add unauthorized principals. Exploitation requires a deployment to use templated policy data that users can freely modify; templates based on the randomly generated identity.entity.id value are not affected. This could allow privilege escalation, unauthorized access, and unauthorized certificate issuance. This issue is fixed in version 2.6.0.

Affected products

openbao
  • ==<2.6.0

Matching in nixpkgs

pkgs.openbao

Open source, community-driven fork of Vault managed by the Linux Foundation

  • nixos-unstable -
    • nixos-unstable-small 2.7.0
  • nixos-26.05 -
    • nixos-26.05-small 2.6.2

pkgs.openbaoPlugins.auth-gcp

OpenBao auth plugin to authenticate using Google Cloud Platform credentials

  • nixos-unstable -

pkgs.openbaoPlugins.secrets-aws

OpenBao secrets plugin to generate AWS access credentials based on IAM policies

  • nixos-unstable -
    • nixos-unstable-small 0.3.1

pkgs.openbaoPlugins.secrets-gcp

OpenBao secrets plugin to generate GCP service account keys and OAuth tokens based on IAM policies

  • nixos-unstable -

pkgs.openbaoPlugins.secrets-azure

OpenBao secrets plugin to generate Azure service principals with role and group assignments

  • nixos-unstable -

Package maintainers