Skip to main content
VulnerabilityPublished

CVE-2026-68079: Apache CXF · Authentication Bypass by Capture-replay

Affects Apache CXFSource CVE Database V5

0
Compare

Not known to be exploited · CVSS 9.8 Critical · fixed in 4.2.3 : patch Apache CXF as a priority.

Data as of 5 Nov 2026, 00:01 UTC

CVSS 3.1 base score
9.8Critical
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.6% chance of exploitation in 30 days – higher than 52% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 4.2.3, 4.1.8, 3.6.12
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 6 Aug 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 5 Nov 2026.

What to do

Upgrade Apache to 4.2.3, 4.1.8 or 3.6.12.

Affected software

ProductAffectedFixed in
Apache Software FoundationApache CXFAffected
  • >=4.2.0 <4.2.3
Fixed in
  • 4.2.3
Apache Software FoundationApache CXFAffected
  • >=4.0.0 <4.1.8
Fixed in
  • 4.1.8
Apache Software FoundationApache CXFAffected
  • <3.6.12
Fixed in
  • 3.6.12
MavenApache Software Foundation/org.apache.cxf:cxf-rt-rs-security-oauth2pkg:maven/Apache Software Foundation/org.apache.cxf:cxf-rt-rs-security-oauth2Other threatsAffected
  • >=4.2.0 <4.2.3
  • >=4.0.0 <4.1.8
  • <3.6.12
Fixed in
  • 4.2.3
  • 4.1.8
  • 3.6.12

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

AI-suggested

Users are strongly advised to upgrade Apache CXF to versions 4.2.3, 4.1.8, or 3.6.12 where this issue is fixed. No other mitigation or temporary workaround is indicated. Patch status is confirmed by the vendor's recommended upgrade versions.

Description

CVE-2026-68079 is a critical authentication bypass vulnerability in Apache CXF's DefaultEncryptingCodeDataProvider. The flaw allows a captured authorization code to be redeemed multiple times, violating the RFC requirement that authorization codes must only be used once. This issue affects multiple versions of Apache CXF prior to 4.2.3, 4.1.8, and 3.6.12, which contain the fixes.

References

Community reviews

Loading reviews…