---
schema_version: '1.0'
id: security-20260705-556164
url: https://osv.dev/vulnerability/DEBIAN-CVE-2026-28389
url_hash: 556164da8ca7b0c32ef9d96736ca3d54dba20e9bceee6c32de8f1b344baaf682
canonical_url: https://osv.dev/vulnerability/DEBIAN-CVE-2026-28389
source: osv:debian
category: security/os
category_raw: cve/os
region: null
tags:
- cve
- DEBIAN-CVE-2026-28389
- severity:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
- openssl
- Debian
lang: en
published_at: '2026-04-07T22:16:21Z'
fetched_at: '2026-07-05T15:34:34Z'
updated_at: '2026-07-05T15:36:29Z'
status: published
content_hash: 05fba8e9831e0fdf70188977f614b41e53011241f7ca4d010a80bbbb28b14c53
license_note: full
summary: 'Issue summary: During processing of a crafted CMS EnvelopedData message
  with KeyAgreeRecipientInfo a NULL pointer dereference can happen.  Impact summary:
  Applications that process attacker-controlled CMS data may crash before authentication
  or cryptographic operations occur resu'
summary_source: rss
summary_en: 'Issue summary: During processing of a crafted CMS EnvelopedData message
  with KeyAgreeRecipientInfo a NULL pointer dereference can happen.  Impact summary:
  Applications that process attacker-controlled CMS data may crash before authentication
  or cryptographic operations occur resu'
entities: []
key_facts: []
related: []
related_auto: []
title: DEBIAN-CVE-2026-28389 — openssl
---

# DEBIAN-CVE-2026-28389 — openssl

## TL;DR
Issue summary: During processing of a crafted CMS EnvelopedData message with KeyAgreeRecipientInfo a NULL pointer dereference can happen.  Impact summary: Applications that process attacker-controlled CMS data may crash before authentication or cryptographic operations occur resu

## Key Points
- cve / DEBIAN-CVE-2026-28389 / severity:CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H / openssl / Debian

## Details
**Severity:** CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
**Advisory:** DEBIAN-CVE-2026-28389

**Affected (your watchlist):**
- `Debian:openssl` 3.0.11-1~deb12u2 → no fixed version listed [rpi]

**Details:**
Issue summary: During processing of a crafted CMS EnvelopedData message with KeyAgreeRecipientInfo a NULL pointer dereference can happen.  Impact summary: Applications that process attacker-controlled CMS data may crash before authentication or cryptographic operations occur resulting in Denial of Service.  When a CMS EnvelopedData message that uses KeyAgreeRecipientInfo is processed, the optional parameters field of KeyEncryptionAlgorithmIdentifier is examined without checking for its presence. This results in a NULL pointer dereference if the field is missing.  Applications and services that call CMS_decrypt() on untrusted input (e.g., S/MIME processing or CMS-based protocols) are vulnerable.  The FIPS modules in 3.6, 3.5, 3.4, 3.3 and 3.0 are not affected by this issue, as the affected code is outside the OpenSSL FIPS module boundary.

**References:**
- https://security-tracker.debian.org/tracker/CVE-2026-28389

_Data: OSV.dev (upstream: debian) — https://osv.dev/vulnerability/DEBIAN-CVE-2026-28389_

## Source
元記事: [DEBIAN-CVE-2026-28389 — openssl](https://osv.dev/vulnerability/DEBIAN-CVE-2026-28389) — published 2026-04-07T22:16:21Z