9.8

CVE-2026-68079: apache software foundation apache cxf Authentication Bypass by Capture-replay

CVSS: 9.8v3.1CriticalModified
Published 06-08-2026Last modified 07-08-2026
Open JSON

Vulnerability summary

CVE-2026-68079 is a critical (CVSS 9.8) Authentication Bypass by Capture-replay vulnerability in apache software foundation apache cxf. EPSS estimates a 0.68% chance of exploitation in the next 30 days, higher than 51.5% 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
0.68%
0%100%
Low · +0.29 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Timeline

  1. 06-08-2026
    PublishedVulnerability first disclosed.
  2. 07-08-2026
    Last modifiedVulnerability information updated.

Description

In Apache CXF's DefaultEncryptingCodeDataProvider, a captured authorization code can be redeemed an unlimited number of times due to a flaw in the implementation of the removeCodeGrant functionality. This violates the RFC requirement that "The authorization code MUST NOT be used more than once." Users are recommended to upgrade to versions 4.2.3 or 4.1.8 or 3.6.12, which fix this issue.

CVSS metrics

2 scores · 2 sources · 1 version

EPSS trend

Probability

0.68%

Chance of exploitation in the next 30 days

Percentile

52%

Versus all other CVEs

30-day change

+0.29 pp

From 0.40% on 18-09-2026

18-09-202618-10-2026
EPSS score
0.68%

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< 3.6.12 | ≥ 4.0.0, < 4.1.8 | ≥ 4.2.0, < 4.2.3
Apache software foundation1 product
  • apache cxf≥ 4.2.0, < 4.2.3 | ≥ 4.0.0, < 4.1.8 | < 3.6.12

2 vendors · 2 products

References

2 links