6.1

CVE-2026-41715: spring reactor netty Insufficiently Protected Credentials

CVSS: 6.1v3.1MediumAwaiting analysis
AliasesGHSA-pfc9-2cqg-9wq6
Published 09-06-2026Last modified 23-06-2026
Open JSON

Vulnerability summary

CVE-2026-41715 is a medium (CVSS 6.1) Insufficiently Protected Credentials vulnerability in spring reactor netty. EPSS estimates a 0.24% chance of exploitation in the next 30 days, higher than 14.1% of scored vulnerabilities.

Overall risk
24/100
0100
Low · default modelHow is this calculated?
CVSS score
6.1/10
010
Medium · v3.1 (CVE.org)
EPSS score
0.24%
0%100%
Low · +0.07 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 09-06-2026
    PublishedVulnerability first disclosed.
  2. 23-06-2026
    Last modifiedVulnerability information updated.

Description

In specific scenarios involving HTTP redirects from a secure to an insecure endpoint, the Reactor Netty HTTP client may leak credentials. In order for this to happen, the HTTP client must have been explicitly configured to follow redirects. Affected versions: Reactor Netty 1.0.0 through 1.0.51; 1.1.0 through 1.1.35; 1.2.0 through 1.2.17; 1.3.0 through 1.3.5.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

0.24%

Chance of exploitation in the next 30 days

Percentile

14%

Versus all other CVEs

30-day change

+0.07 pp

From 0.17% on 19-09-2026

19-09-202619-10-2026
EPSS score
0.24%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Io.projectreactor.netty1 product
  • reactor-netty≥ 1.3.0, < 1.3.6 | ≥ 1.2.0, < 1.2.18 | ≥ 1.1.0, ≤ 1.1.31 | ≥ 1.0.0, ≤ 1.0.48
Spring1 product
  • reactor netty≥ 1.0.0, < 1.0.52 | ≥ 1.1.0, < 1.1.36 | ≥ 1.2.0, < 1.2.17.1 | ≥ 1.3.0, < 1.3.15.1

2 vendors · 2 products

References

6 links