How severe is CVE-2026-91867?

CVE-2026-91867 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.

Is CVE-2026-91867 being actively exploited?

It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (41st percentile), an estimate of the probability of exploitation in the next 30 days.

What products are affected by CVE-2026-91867?

CVE-2026-91867 affects Apache Neethi. See the affected-products list for the exact vulnerable versions.

How do I fix CVE-2026-91867?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.

When was CVE-2026-91867 published?

CVE-2026-91867 was published on 2026-09-21 and last updated on 2026-09-25.

CVE-2026-91867

CVE-2026-91867 is a medium-severity vulnerability in Apache Neethi with a CVSS 3.x base score of 4.3. It is not currently listed as actively exploited by CISA, and its EPSS exploit-prediction score is low. The underlying weakness is classified as CWE-400.

Key facts

Severity: Medium (CVSS 3.x base score 4.3)
EPSS exploit prediction: 0% (41st percentile)
Actively exploited: Not listed in CISA KEV
Weakness: CWE-400
Affected product: Apache Neethi
Published: 2026-09-21
Last modified: 2026-09-25

Description

When Neethi fetches a remote policy reference, it only limits the time per read, not the whole transfer, so a server that trickles bytes slowly can keep the fetch alive indefinitely and tie up the calling thread (denial of service). Users are recommended to upgrade to version 3.2.4, which fixes this issue.

Frequently asked questions

What is CVE-2026-91867?: When Neethi fetches a remote policy reference, it only limits the time per read, not the whole transfer, so a server that trickles bytes slowly can keep the fetch alive indefinitely and tie up the calling thread (denial of service). Users are recommended to upgrade to version 3.2.4, which fixes this issue.
How severe is CVE-2026-91867?: CVE-2026-91867 has a CVSS 3.x base score of 4.3, rated medium severity. It is exploitable over network with low attack complexity, requires no privileges and user interaction. Impact on confidentiality is none, integrity none, and availability low.
Is CVE-2026-91867 being actively exploited?: It is not currently listed in CISA's KEV catalog. Its EPSS exploit-prediction score is 0% (41st percentile), an estimate of the probability of exploitation in the next 30 days.
What products are affected by CVE-2026-91867?: CVE-2026-91867 affects Apache Neethi. See the affected-products list for the exact vulnerable versions.
How do I fix CVE-2026-91867?: Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround.
When was CVE-2026-91867 published?: CVE-2026-91867 was published on 2026-09-21 and last updated on 2026-09-25.

References

Affected products (1)

cpe:2.3:a:apache:neethi:*:*:*:*:*:*:*:*

More vulnerabilities in Apache Neethi

CVE-2026-91866 — High (CVSS 7.5): A specially crafted pair of WS-Policy documents can force Neethi's policy-intersection to do exponential amounts of…
CVE-2026-91865 — High (CVSS 7.5): A small WS-Policy document using repeated policy references can force Neethi to re-expand the same references…
CVE-2026-91864 — High (CVSS 7.5): A specially crafted WS-Policy document can pack unlimited content inside a policy assertion, which Neethi copies into…
CVE-2026-91863 — High (CVSS 7.5): A specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and…
CVE-2026-66144 — High (CVSS 7.5): Although remote policy references are not retrieved during policy normalization, if they are manually retrieved via the…
CVE-2026-66143 — High (CVSS 7.5): It is possible to bypass the maximum number of normalized policy alternatives that was introduced in Apache Neethi…

All CVEs affecting Apache Neethi →

Other CWE-400 (Uncontrolled Resource Consumption) vulnerabilities

CVE-2026-46775 — Critical (CVSS 9.9): Vulnerability in Oracle REST Data Services (component: Core). Supported versions that are affected are 24.2.0-26.1.0.…
CVE-2025-61303 — Critical (CVSS 9.8): Hatching Triage Sandbox Windows 10 build 2004 (2025-08-14) and Windows 10 LTSC 2021(2025-08-14) contains a…
CVE-2025-43193 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.6, macOS Sonoma 14.7.7,…
CVE-2025-24269 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4. An app may be able to…
CVE-2025-24264 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in Safari 18.4, iOS 18.4 and iPadOS 18.4,…
CVE-2025-24260 — Critical (CVSS 9.8): The issue was addressed with improved memory handling. This issue is fixed in macOS Sequoia 15.4, macOS Sonoma 14.7.5,…

Browse all CWE-400 (Uncontrolled Resource Consumption) vulnerabilities →