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CVE-2026-42403

Apache Neethi: Circular Policy Reference Infinite Loop

7.5 HighFix available

Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains circular policy references (where Policy A references Policy B which references Policy A), the policy normalization process can enter an infinite loop or cause excessive recursion, leading to a stack overflow or application hang. An attacker can craft malicious policy documents with circular references to cause a Denial of Service condition

Users are recommended to upgrade to version 3.2.2, which fixes this issue.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
None
Integrity
None
Availability
High

Exploit likelihood

0.76%Up 0.8 points since May 1, 2026
90%50%10%1%

What each source reports

CVE List Score used 7.5

Apache Neethi: Circular Policy Reference Infinite Loop

Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains circular policy references (where Policy A references Policy B which references Policy A), the policy normalization process can enter an infinite loop or cause excessive recursion, leading to a stack overflow or application hang. An attacker can craft malicious policy documents with circular references to cause a Denial of Service condition

Users are recommended to upgrade to version 3.2.2, which fixes this issue.

Record
CVE-2026-42403
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
EUVDEUVD-2026-26486 7.5

Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains circular policy references (where Policy A references Policy B which references Policy A), the policy normalization process can enter an infinite loop or cause excessive recursion, leading to a stack overflow or application hang. An attacker can craft malicious policy documents with circular references to cause a Denial of Service condition

Users are recommended to upgrade to version 3.2.2, which fixes this issue.

Record
EUVD-2026-26486
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-2hfh-9h53-qc24 7.5

Apache Neethi does not properly detect circular references in policy definitions.

Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains circular policy references (where Policy A references Policy B which references Policy A), the policy normalization process can enter an infinite loop or cause excessive recursion, leading to a stack overflow or application hang. An attacker can craft malicious policy documents with circular references to cause a Denial of Service condition

Users are recommended to upgrade to version 3.2.2, which fixes this issue.

Record
GHSA-2hfh-9h53-qc24
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
NVD 7.5

Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains circular policy references (where Policy A references Policy B which references Policy A), the policy normalization process can enter an infinite loop or cause excessive recursion, leading to a stack overflow or application hang. An attacker can craft malicious policy documents with circular references to cause a Denial of Service condition

Users are recommended to upgrade to version 3.2.2, which fixes this issue.

Record
CVE-2026-42403
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSV 7.5

Apache Neethi: Circular Policy Reference Infinite Loop

Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains circular policy references (where Policy A references Policy B which references Policy A), the policy normalization process can enter an infinite loop or cause excessive recursion, leading to a stack overflow or application hang. An attacker can craft malicious policy documents with circular references to cause a Denial of Service condition

Users are recommended to upgrade to version 3.2.2, which fixes this issue.

Record
CVE-2026-42403
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
OSVGHSA-2hfh-9h53-qc24 7.5

Apache Neethi does not properly detect circular references in policy definitions.

Apache Neethi does not properly detect circular references in policy definitions. When a WS-Policy document contains circular policy references (where Policy A references Policy B which references Policy A), the policy normalization process can enter an infinite loop or cause excessive recursion, leading to a stack overflow or application hang. An attacker can craft malicious policy documents with circular references to cause a Denial of Service condition

Users are recommended to upgrade to version 3.2.2, which fixes this issue.

Record
GHSA-2hfh-9h53-qc24
CVSS 3.1
7.5 HighCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Weakness
CWE-400
Updated
2026-11-02
Show 4 moreShow less
OSVCLSA-2026-1784682823 No score

TuxCare security update for org.apache.neethi:neethi (1 CVE)

TuxCare rebuilt org.apache.neethi:neethi to address 1 CVE. Fixed in 3.1.1-tuxcare.2.

Record
CLSA-2026-1784682823
Updated
2026-11-02
OSVCLSA-2026-1793138734 No score

TuxCare security update for org.apache.neethi:neethi (1 CVE)

TuxCare rebuilt org.apache.neethi:neethi to address 1 CVE. Fixed in 3.0.3-tuxcare.1.

Record
CLSA-2026-1793138734
Updated
2026-11-02
OSVCLSA-2026-1793138829 No score

TuxCare security update for org.apache.neethi:neethi (1 CVE)

TuxCare rebuilt org.apache.neethi:neethi to address 1 CVE. Fixed in 3.0.1-tuxcare.1.

Record
CLSA-2026-1793138829
Updated
2026-11-02
OSVCLSA-2026-1793198730 No score

TuxCare security update for org.apache.neethi:neethi (2 CVEs)

TuxCare rebuilt org.apache.neethi:neethi to address 2 CVEs. Fixed in 3.2.0-tuxcare.1.

Record
CLSA-2026-1793198730
Updated
2026-11-02

Affected products

Affected packages

Affected packages
PackageAffectedFixed
org.apache.neethi:neethi
Maven
before 3.2.2
3.2.2
org.apache.neethi:neethi
TuxCare:Maven
3.1.1 up to 3.1.1-tuxcare.2, plus listed versions
3.1.1-tuxcare.1
3.1.1-tuxcare.2
org.apache.neethi:neethi
TuxCare:Maven
3.0.3 up to 3.0.3-tuxcare.1
3.0.3-tuxcare.1
org.apache.neethi:neethi
TuxCare:Maven
3.0.1 up to 3.0.1-tuxcare.1
3.0.1-tuxcare.1
org.apache.neethi:neethi
TuxCare:Maven
From an advisory covering 2 CVEs
3.2.0 up to 3.2.0-tuxcare.1
3.2.0-tuxcare.1
org.apache.neethi:neethi
Maven
before 3.2.2, plus listed versions
2.02.0.12.0.22.0.32.0.4
Show 9 moreShow less
2.0.53.0.03.0.13.0.23.0.33.1.03.1.13.2.03.2.1
3.2.2

History

History
RecordedChangedSources
affected, facts
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-42403 is a high vulnerability (CVSS 7.5) in Apache Neethi, published May 1, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. Fixed in org.apache.neethi:neethi 3.2.2.

References

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