CVE-2026-9150
MEDIUMA 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 corruption and...
Full CISO analysis pending enrichment.
What systems are affected?
How severe is it?
What is the attack surface?
What should I do?
No patch available
Monitor for updates. Consider compensating controls or temporary mitigations.
Which compliance frameworks are affected?
Compliance analysis pending. Sign in for full compliance mapping when available.
Frequently Asked Questions
What is 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 corruption and a denial of service (DoS) in the affected system.
Is CVE-2026-9150 actively exploited?
No confirmed active exploitation of CVE-2026-9150 has been reported, but organizations should still patch proactively.
How to fix CVE-2026-9150?
No patch is currently available. Monitor vendor advisories for updates.
What is the CVSS score for CVE-2026-9150?
CVE-2026-9150 has a CVSS v3.1 base score of 6.5 (MEDIUM).
What are the technical details?
Original Advisory
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 corruption and a denial of service (DoS) in the affected system.
Weaknesses (CWE)
CWE-121 — Stack-based Buffer Overflow: The product writes past the end of a buffer that was allocated on the stack.
- [Operation, Build and Compilation] Use automatic buffer overflow detection mechanisms that are offered by certain compilers or compiler extensions. Examples include: the Microsoft Visual Studio /GS flag, Fedora/Red Hat FORTIFY_SOURCE GCC flag, StackGuard, and ProPolice, which provide various mechanisms including canary-based detection and range/index checking. D3-SFCV (Stack Frame Canary Validation) from D3FEND [REF-1334] discusses canary-based detection in detail.
- [Architecture and Design] Use an abstraction library to abstract away risky APIs. Not a complete solution.
Source: MITRE CWE corpus.
CVSS Vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:HReferences
- access.redhat.com/errata/RHSA-2026:21333vendor-advisoryx_refsource_REDHAT
- access.redhat.com/errata/RHSA-2026:28236vendor-advisoryx_refsource_REDHAT
- access.redhat.com/errata/RHSA-2026:30649vendor-advisoryx_refsource_REDHAT
- access.redhat.com/errata/RHSA-2026:48818vendor-advisoryx_refsource_REDHAT
- access.redhat.com/security/cve/CVE-2026-9150vdb-entryx_refsource_REDHAT
- bugzilla.redhat.com/show_bug.cgiissue-trackingx_refsource_REDHAT
- github.com/openSUSE/libsolv/pull/616
Timeline
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