CVE-2026-9150 — Libsolv Buffer Overflow
CVE-2026-9150 — A flaw was found in libsolv. This stack-based buffer overflow vulnerability occurs in libsolv's Debian metadata parser when processing specially crafted Debian repository metadata. An attacker could exploit this by providing malicious SHA384 or SHA512 checksum tags, leading to memory
What This Means For You
- If your environment is affected by CWE-121, review your exposure and prioritize patching based on your environment. Monitor vendor advisories for CVE-2026-9150 updates and patches.
Related ATT&CK Techniques
🛡️ Detection Rules
3 rules · 6 SIEM formats3 detection rules auto-generated for this incident, mapped to MITRE ATT&CK. Sigma YAML is free — export to any SIEM format via the Intel Bot.
CVE-2026-9150 Libsolv Debian Metadata Parser Stack Overflow
title: CVE-2026-9150 Libsolv Debian Metadata Parser Stack Overflow
id: scw-2026-05-20-ai-1
status: experimental
level: critical
description: |
Detects attempts to exploit CVE-2026-9150 by observing requests containing specific malicious checksum tags (SHA384 or SHA512) within the query parameters. This indicates an attempt to trigger the stack-based buffer overflow in libsolv's Debian metadata parser.
author: SCW Feed Engine (AI-generated)
date: 2026-05-20
references:
- https://shimiscyberworld.com/posts/nvd-CVE-2026-9150/
tags:
- attack.initial_access
- attack.t1190
logsource:
category: webserver
detection:
selection:
cs-uri-query|contains:
- 'SHA384'
- 'SHA512'
condition: selection
falsepositives:
- Legitimate administrative activity
Source: Shimi's Cyber World · License & reuse
Indicators of Compromise
| ID | Type | Indicator |
|---|---|---|
| CVE-2026-9150 | vulnerability | CVE-2026-9150 |
| CWE-121 | weakness | CWE-121 |
Written by SCW Vulnerability Desk
Source & Attribution
| Source Platform | NVD |
| Channel | National Vulnerability Database |
| Published | May 21, 2026 at 02:16 UTC |
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