CVE•Published 2026-05-01•Modified 2026-07-15•0 articles on news•4 live references•NVD data

CVE-2026-43001Openstack · Keystone

Vulnerability data via NVD (ingested)

CVSS v3.1

7.9

HIGH

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

EPSS percentile

Exploit Prediction Scoring System · top 64% of all CVEs

Weaknesses (CWE)

CWE-863Incorrect Authorization CWE-1288Improper Validation of Consistency within Input

Description

An issue was discovered in OpenStack Keystone before 29.0.2. POST /v3/credentials did not validate that the caller-supplied project_id for an EC2-type credential matched the project of the authenticating application credential. This allowed an attacker holding an unrestricted application credential for project A to create an EC2 credential targeting project B; a subsequent /v3/ec2tokens exchange would then issue a Keystone token scoped to project B while still carrying the original app_cred_id, enabling cross-project lateral movement within the credential owner's role footprint.

Timeline

Published 2026-05-01

Modified 2026-07-15

External references

NVD MITRE Exploit-DB VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common). Live host counts are a Premium feature.

Shodan · vuln tag

vuln:CVE-2026-43001

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Openstack Keystone"

All exposed Openstack Keystone instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Keystone"

HTTP body or banner mentions "Keystone" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-43001