9.8

CVE-2026-50628: apache software foundation apache cxf Improper Input Validation

CVSS: 9.8v3.1CriticalModified
AliasesGHSA-g5v7-jchf-7jrr
Published 12-06-2026Last modified 10-08-2026
Open JSON

Vulnerability summary

CVE-2026-50628 is a critical (CVSS 9.8) Improper Input Validation vulnerability in apache software foundation apache cxf. EPSS estimates a 1.02% chance of exploitation in the next 30 days, higher than 62.9% of scored vulnerabilities.

Overall risk
70/100
0100
High · default modelHow is this calculated?
CVSS score
9.8/10
010
Critical · v3.1 (CVE.org)
EPSS score
1.02%
0%100%
Low · +0.34 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 12-06-2026
    PublishedVulnerability first disclosed.
  2. 10-08-2026
    Last modifiedVulnerability information updated.

Description

A logic error in OAuthRequestFilter rejects legitimate requests originating from the bound IP address, while blindly allowing requests from any other IP address. Enabling this security feature inadvertently creates an inverse security check. Users are recommended to upgrade to versions 4.2.2 or 4.1.7 or 3.6.12, which fixes this issue.

CVSS metrics

3 scores · 3 sources · 1 version

EPSS trend

Probability

1.02%

Chance of exploitation in the next 30 days

Percentile

63%

Versus all other CVEs

30-day change

+0.34 pp

From 0.68% on 19-09-2026

19-09-202619-10-2026
EPSS score
1.02%

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

Apache1 product
  • cxf< 4.1.7 | ≥ 4.2.0, < 4.2.2
Apache software foundation1 product
  • apache cxf≥ 4.2.0, < 4.2.2 | ≥ 4.0.0, < 4.1.7 | < 3.6.12
Org.apache.cxf1 product
  • cxf-rt-rs-security-oauth2≥ 4.2.0, < 4.2.2 | < 4.1.7

3 vendors · 3 products

References

8 links