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CVE-2026-68079Suited to automated attack · CISA

Apache CXF: DefaultEncryptingCodeDataProvider allows unlimited authorization code replay

CVSS score

9.8

EPSS probability

%0.7

Risk score

0.1

Published

2 mo ago

OverviewPublic Exploits (0)NewsroomVulnerability Timeline
Patch status has not yet been verified

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Vulnerability description

CVE AI research

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DayBreach AI Explanation

Verified against sources

Apache CXF Authorization Code Replay Vulnerability (CVE-2026-68079)

Sources read

2

Source agreement

Tam uyum

Evidence confidence

%58

Short explanation

CVE-2026-68079 in Apache CXF allows unlimited authorization code reuse due to a flaw in removeCodeGrant. No active exploitation is confirmed. Patch status is UNKNOWN. Affected versions are 4.2.0 < 4.2.3, 4.0.0 < 4.1.8, and 0 < 3.6.12.

Why does it matter?

This flaw enables attackers to reuse authorization codes, potentially leading to unauthorized access. It affects authentication flows and undermines security of OAuth-based systems. Patching is recommended but patch status is UNKNOWN.

What should be done?

  • Upgrade to Apache CXF 4.2.3, 4.1.8, or 3.6.12
  • Follow vendor advisory for version-specific patch guidance
  • No patch status assessment available in evidence
Note on uncertainty

The sources give limited detail on some technical conditions. Review the chain of evidence below before deciding how to act.

Chain of evidence and sources3 verified claims

Apache CXF'nin DefaultEncryptingCodeDataProvider'sında, removeCodeGrant işlevinin hatalı uygulanması nedeniyle yetkili kodun sınırsız şekilde tekrar kullanılması mümkündür ve RFC gerekliliklerini ihlal eder.

S0 · daybreach-canonical

Etkilenen sürümler, Apache CXF 4.2.0 < 4.2.3, 4.0.0 < 4.1.8 ve 0 < 3.6.12'dir. Yama durumu, mevcut kanıtla bilinemez.

S0 · daybreach-canonical

Bu ele geçirme aktif istismar olarak doğrulanmamıştır ve kanıtta herhangi bir açık kaynak PoC veya istismar bulunmamaktadır.

S0 · daybreach-canonical
Show the technical text from the sources

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 vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

CWE: CWE-294

Explanation produced with the local qwen3:4b-instruct model. Numerical metrics and the KEV, patch and exploit statuses are not determined by AI.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-68079 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Apache Software FoundationApache CXF View
2apachecxf View
3apachecxf View
4apachecxf View
Total affected vendors: 2|Products: 4

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
9.8CVSS V3_1CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HCVE ADP
9.8CVSS V31CRITICALCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:HNVD

Patch and Remediation Guide

Solution & Remediation Advisory

Patch status unknown

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Until a patch is confirmed, follow the vendor advisory; do not read an unknown status as “no patch”.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-68079 is associated with the following CWEs:

CWE-294: Common Weakness Enumeration Entry CWE-294

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-68079 weaknesses.

CAPEC-66: SQL InjectionCAPEC-126: Path TraversalCAPEC-28: OS Command Injection

Attack Vector and Accessibility

ExposureAğ üzerinden
PermissionsGerekmiyor
UserGerekmiyor

Official Sources and Advisories

https://lists.apache.org/thread/6m06gdqz4rxhy9g90qz9lyqx2gqmf13ovendor-advisoryhttp://www.openwall.com/lists/oss-security/2026/08/06/24nvd

CVSS Vector Radar Chart

9.8 / 10
Attack VectorNetworkComplexityLowPrivilegesNoneUser Interact.NoneConfidentialityLowIntegrityNoneAvailabilityHigh

Vulnerability Scoring Details

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Attack VectorNetwork
Attack ComplexityLow
Privileges RequiredNone required
User InteractionNone required
Confidentiality (Gizlilik)Low
Integrity (Bütünlük)None
Availability (Erişilebilirlik)High

Yama durumu bilinmiyor

İncelenen resmî kaynaklarda yama durumu doğrulanamadı. Bu sonuç “yama yok” anlamına gelmez.

Follow the vendor

AS
Apache Software Foundation logo
Apache Software Foundation
A
apache logo
apache

Weakness Type (CWE & CAPEC)

CWE-294

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