CVE-2026-48042
Last modified
CVE-2026-48042 is a high-severity vulnerability rated 7.5/10 on the CVSS scale. Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, destructor of JSON Object results in stack overflow when deeply O(100K) nested objects are present. EPSS estimates a 0.53% chance of exploitation in the next 30 days.
Description
Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.35.11, 1.36.7, 1.37.3, and 1.38.1, destructor of JSON Object results in stack overflow when deeply O(100K) nested objects are present. This vulnerability is fixed in 1.35.11, 1.36.7, 1.37.3, and 1.38.1.
Metrics
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Envoyproxy | Envoy | >= 1.18.0, < 1.35.13 |
| Envoyproxy | Envoy | >= 1.36.0, < 1.36.9 |
| Envoyproxy | Envoy | >= 1.37.0, < 1.37.5 |
| Envoyproxy | Envoy | >= 1.38.0, < 1.38.3 |
References
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-f24p-rxw2-g6pvExploit, Vendor Advisory
- https://github.com/envoyproxy/envoy/security/advisories/GHSA-f24p-rxw2-g6pvExploit, Vendor Advisory
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-48042?
How severe is CVE-2026-48042?
How do I fix CVE-2026-48042?
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-2026-48036Hulumi is an open-source toolkit that ships secure-by-defaul…8.4
- CVE-2026-48037Hulumi is an open-source toolkit that ships secure-by-defaul…6.3
- CVE-2026-48038joi is a schema description language and data validator for …5.3
- CVE-2026-48039Meta Ads MCP is a Model Context Protocol (MCP) server that l…9.1
- CVE-2026-4804The Zakra theme for WordPress is vulnerable to Stored Cross-…6.4
- CVE-2026-48040The netty incubator codec.bhttp is a java language binary ht…9.1
- CVE-2026-48043Netty is a network application framework for development of …7.5
- CVE-2026-48044Envoy is an open source edge and service proxy designed for …7.5
- CVE-2026-48045Zeroconf is a pure Python implementation of multicast DNS se…6.5
- CVE-2026-48046Streambert is a cross-platform Electron Desktop App to strea…9.3
- CVE-2026-48047XWiki Platform WebJars API is a package for XWiki, a generic…5.9
- CVE-2026-48048XWiki Platform is a generic wiki platform. XWiki discovered …7.5
Are you affected by CVE-2026-48042?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST