Apache Neethi vulnerabilities

11 CVEs affecting Apache Neethi, 0 known to be exploited (CISA KEV), with EPSS scores. Latest: CVE-2026-91867, published 2026-09-21.

Highest priority

Known exploited (CISA KEV) first, then by EPSS exploit probability.

CVE-2026-66143, published 2026-07-24. High severity, CVSS 7.5. EPSS: 0.9% chance of exploitation in the next 30 days. It is possible to bypass the maximum number of normalized policy alternatives that was introduced in Apache Neethi 3.2.2 via certain crafted policies, which may lead to a denial of service attack via…
CVE-2026-42403, published 2026-05-01. High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days. 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…
CVE-2026-91863, published 2026-09-21. High severity, CVSS 7.5. EPSS: 0.8% chance of exploitation in the next 30 days. A specially crafted WS-Policy document with deeply nested policy elements can bypass Neethi's nesting-depth limit and exhaust the thread stack, crashing the parser (denial of service). Users are…
CVE-2026-91866, published 2026-09-21. High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days. A specially crafted pair of WS-Policy documents can force Neethi's policy-intersection to do exponential amounts of work, pinning the CPU for a long time (denial of service). Users are recommended to…
CVE-2026-91865, published 2026-09-21. High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days. A small WS-Policy document using repeated policy references can force Neethi to re-expand the same references exponentially during normalization, consuming huge amounts of CPU and memory (denial of…
CVE-2026-91864, published 2026-09-21. High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days. A specially crafted WS-Policy document can pack unlimited content inside a policy assertion, which Neethi copies into memory without counting it against its size limits, exhausting the heap (denial…
CVE-2026-66144, published 2026-07-24. High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days. Although remote policy references are not retrieved during policy normalization, if they are manually retrieved via the API it can cause a denial of service attack if a huge policy is retrieved.…
CVE-2026-66142, published 2026-07-24. High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days. 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…
CVE-2026-42402, published 2026-05-01. High severity, CVSS 7.5. EPSS: 0.7% chance of exploitation in the next 30 days. Apache Neethi is vulnerable to a Denial of Service attack through algorithmic complexity in policy normalization. Specially crafted WS-Policy documents can trigger an exponential Cartesian…
CVE-2026-42404, published 2026-05-01. High severity, CVSS 7.2. EPSS: 0.6% chance of exploitation in the next 30 days. Apache Neethi does not impose any restrictions on URIs when manually fetching remote policy references through the PolicyReference API. When an application explicitly calls the API to retrieve a…

Latest

CVE-2026-91867, published 2026-09-21. Medium severity, CVSS 4.3. EPSS: 0.5% chance of exploitation in the next 30 days. 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…