7.5

CVE-2026-48042: envoyproxy envoy Excessively Deep Nesting

CVSS: 7.5v3.1HighAnalyzed
Published 26-06-2026Last modified 29-06-2026
Open JSON

Vulnerability summary

CVE-2026-48042 is a high (CVSS 7.5) Excessively Deep Nesting vulnerability in envoyproxy envoy. EPSS estimates a 0.56% chance of exploitation in the next 30 days, higher than 45.6% of scored vulnerabilities. 1 public exploit is recorded.

Overall risk
40/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.5/10
010
High · v3.1 (CVE.org)
EPSS score
0.56%
0%100%
Low · 0.00 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits1github

Advisory lineage

Upstream 0 · Downstream 1 · Related 1
OPENSUSE-SU-2026:11141-1

Timeline

  1. 26-06-2026
    PublishedVulnerability first disclosed.
  2. 29-06-2026
    Last modifiedVulnerability information updated.

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.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.56%

Chance of exploitation in the next 30 days

Percentile

46%

Versus all other CVEs

30-day change

0.00 pp

From 0.56% on 22-09-2026

22-09-202622-10-2026
EPSS score
0.56%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

1 found
  • githubUnverified

    Envoy

    Maturity: poc

Weaknesses

CWE · root cause

Affected systems

Envoyproxy1 product
  • envoy≥ 1.38.0, < 1.38.1 | ≥ 1.37.0, < 1.37.3 | ≥ 1.36.0, < 1.36.7 | < 1.35.11 | ≥ 1.18.0, < 1.35.13 | ≥ 1.36.0, < 1.36.9 | ≥ 1.37.0, < 1.37.5 | ≥ 1.38.0, < 1.38.3

1 vendor · 1 product

References

2 links