CVE-2026-123338
Last modified
CVE-2026-123338 is a vulnerability of currently unknown severity. Out-of-bounds Write vulnerability in Apache DataSketches C++. An application that deserializes a REQ sketch from an untrusted source can have heap memory corrupted by a crafted sketch, because the serialized compactor headers were not validated. This issue affects Apache DataSketches C++: from 3.0.0 through 5.3.0. Users are recommended to upgrade to version 5.3.1, which fixes the issue..
Description
Out-of-bounds Write vulnerability in Apache DataSketches C++. An application that deserializes a REQ sketch from an untrusted source can have heap memory corrupted by a crafted sketch, because the serialized compactor headers were not validated. This issue affects Apache DataSketches C++: from 3.0.0 through 5.3.0. Users are recommended to upgrade to version 5.3.1, which fixes the issue.
Weakness Enumeration
Affected Software
Source: CNA advisory (CVE.org). NVD analysis pending.
| Vendor | Product | Versions |
|---|---|---|
| Apache Software Foundation | Apache DataSketches C++ | >= 3.0.0, <= 5.3.0 |
References
Timeline
- Published
- Last Modified
- Status
- Received
Frequently Asked Questions
What is CVE-2026-123338?
How severe is CVE-2026-123338?
How do I fix CVE-2026-123338?
How Strix Helps
- How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-123332In JetBrains YouTrack before 2026.2.19562 missing authorizat…4.7
- CVE-2026-123333In JetBrains YouTrack before 2026.2.19562 sprint creation al…3.8
- CVE-2026-123334In JetBrains YouTrack before 2026.2.19562 project admins of …3.8
- CVE-2026-123335In JetBrains YouTrack before 2026.2.19562, 2026.1.14137, 2…3.5
- CVE-2026-123336In JetBrains YouTrack before 2026.2.19728 the attachment siz…3.1
- CVE-2026-123337In JetBrains YouTrack before 2026.2.19656 users without upda…3.1
- CVE-2026-123339Improper trust of forwarded headers in RouterListener::onKer…2.3
- CVE-2026-123341Adobe Experience Manager is affected by a reflected Cross-Si…5.4
- CVE-2026-123356GROBID is machine learning software for extracting informati…7.5
- CVE-2026-123357GROBID is machine learning software for extracting informati…0
- CVE-2026-123364OctoPrint provides a web interface for controlling consumer …2.4
- CVE-2026-123367Thor Vector Graphics (ThorVG) is a production-ready vector g…7.4
Are you affected by CVE-2026-123338?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST