EUVD-2026-48302

| CVE-2026-15615 HIGH

Insufficient Verification of Data Authenticity (CWE-345)

2026-07-23 cret@cert.org

GHSA-vxqj-8hg5-3v79

Denial Of Service

7.5

CVSS 3.1 · Vendor: cert

Severity by source

Vendor (cert) PRIMARY

7.5 HIGH

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

Primary rating from Vendor (cert) · only source for this CVE.

CVSS VectorVendor: cert

Attack Vector

Network

Attack Complexity

Low

Privileges Required

None

User Interaction

None

Scope

Unchanged

Confidentiality

None

Integrity

High

Availability

None

Lifecycle Timeline

Analysis Generated

Jul 27, 2026 - 16:22 vuln.today

CVSS changed

Jul 27, 2026 - 16:22 NVD

7.5 (HIGH)

CVE Published

Jul 23, 2026 - 16:17 cve.org

UNKNOWN (no severity yet)

CVE Published

Jul 23, 2026 - 16:17 cve.org

HIGH 7.5

DescriptionCVE.org

Logto omits validation of the SAML <Conditions> element, enabling attackers to strip time and audience restrictions and replay assertions indefinitely.

AnalysisAI

Remote attackers can bypass SAML assertion time and audience restrictions in Logto versions 1.12.0 through 1.37.1, enabling indefinite replay of modified assertions and unauthorized persistent access. No active exploitation or public exploit code has been identified, and EPSS indicates a low exploitation probability (0.13%).