---
id: CVE-2026-88819
title: >-
  In Siglet current and past versions the refresh token handler do not enforce
  proof of possession of the issuer DID.
summary: >-
  In Siglet current and past versions the refresh token handler do not enforce
  proof of possession of the issuer DID.
severity: medium
cvss: 6.3
cvssVector: 'CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N'
cwe:
  - CWE-290
  - CWE-345
vendor: Eclipse Foundation
product: Eclipse Data Plane Core
affected:
  - >-
    eclipse_data_plane_core >= a6f7d4cc0093931287c349e1e546ad2932c08e8d <
    882fe22db42bc67abfd0304c4cdb141b762c35d1
  - eclipse_data_plane_core >= 0.1.0 <= 0.1.3
published: '2026-09-14'
updated: '2026-09-16'
sourceUpdated: '2026-09-16T20:38:33.883'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-88819'
references:
  - url: 'https://gitlab.eclipse.org/security/vulnerability-reports/-/work_items/931'
    label: emo@eclipse.org
tags:
  - nvd
  - cve.org
epss: 0.00169
epssPercentile: 0.05523
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-09-14T19:12:37.702936Z'
cvssSource: cna
ingestedAt: '2026-09-14T17:11:16.566Z'
---

## Overview

In Siglet current and past versions the refresh token handler do not enforce proof of possession of the issuer DID.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.