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CVE-2026-15614

IdP-initiated SAML sessions not reliably invalidated (replay)

HIGH
7.5
CVSS Score
Published: July 23, 2026 at 03:44 PM UTC
Updated: July 27, 2026 at 04:27 PM UTC
1 product affected across 1 vendorLogto

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Severity
HIGH7.5
Exploit prediction
EPSS 0.3%
SSVC
No known exploit

Description

Logto silently fails to delete IdP-initiated SAML sessions, enabling session replay and reuse within the session’s validity window.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Logto· Logto
60%
1.21.0 ≤ v ≤ 1.37.11.21.0

Remediation

No guide yet

No remediation guidance has been written for this CVE yet, and no fixed version or vendor advisory is recorded against it.

References (1)

Source: cverecord
https://github.com/logto-io/logto/blob/ea3ede35028dfd0bbb6d7b239623ce0e7f6cdff8/packages/core/src/libraries/verification-helpers/single-sign-on.ts#L81-L99

SSVC — Action Prioritization

SSVCNo known exploitAutomatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.5HIGHCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
HIGH
Availability
NONE
Vector?

Quick Info

StatusDEFERRED
CWE
CWE-294

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