Apache Neethi: Uncontrolled recursion in policy processing
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA. Impact type from CWE-400.
Summary
Apache Neethi is vulnerable to uncontrolled recursion when parsing policies that lack policy Ids or with deeply nested structures, which may lead to a denial of service attack when parsing policies due to runtime memory exhaustion. Users are recommended to upgrade to version 3.2.3, which fixes this issue.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA Apache Neethi (Apache Software Foundation) Fixed in 3.2.3
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Apache Neethi 3.2.3
3 records Highest priority Priority MEDIUM 3 MEDIUM
Other records, highest priority first
- TI-2026-47067 Apache Neethi: Remote PolicyReference fetch lacks resource boundsPriority MEDIUM 40
- TI-2026-47066 Apache Neethi: Missing global alternative-output budget across policy computation pathsPriority MEDIUM 40
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-66142
- 2026-10-03 Alias added: GHSA-vfqj-r56j-g77w
- 2026-11-06 Affected versions changed · Red Hat
- 2026-11-06 CVSS score added · Red Hat
References
More Apache Neethi vulnerabilities
- TI-2026-62055 Apache Neethi: Crafted policies cause unbounded work during intersection leading to denial of service CVSS 3.1HIGH 7.5
- TI-2026-62054 Apache Neethi: Crafted policy references cause exponential expansion during normalization leading to denial of service CVSS 3.1HIGH 7.5
- TI-2026-62053 Apache Neethi: Crafted WS-Policy documents bypass element/attribute limits causing memory exhaustion CVSS 3.1HIGH 7.5
- TI-2026-62052 Apache Neethi: Uncontrolled recursion while parsing crafted WS-Policy documents allows denial of service CVSS 3.1HIGH 7.5
- TI-2026-47067 Apache Neethi: Remote PolicyReference fetch lacks resource bounds CVSS 3.1HIGH 7.5
- TI-2026-47066 Apache Neethi: Missing global alternative-output budget across policy computation paths CVSS 3.1HIGH 7.5
Sources
- CVE-2026-66142 · CVE Program
- CVE-2026-66142 · NVD
- FIRST EPSS
- GHSA-vfqj-r56j-g77w · GitHub Advisory Database · CC BY 4.0
- CVE-2026-66142 · Red Hat security data · CC BY 4.0
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