PatchTheCVECVE-2026-42404: Apache Neethi does not impose any restrictions on URIs when manually fetching remote policy references through
CVE-2026-42404 is a medium-severity flaw (CVSS 6.5) affecting neethi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 policy from a remote URI, an outbound request is made for arbitrary protocols and internal IP adddresses. From 3.2.2, only http or https URIs are allowed, and link-local/multicast/any-local addresses are forbidden. Users are recommended to upgrade to ver
Why this priority
- Remotely exploitable, no login, no user action
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 6.5 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.5% (top 58%) |
| CISA exploited list | No |
| Weakness | CWE-918 |
| Published | 2026-05-01 |
| Last modified | 2026-10-26 |
Last updated 2026-10-26 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2026-42404?
neethi: upgrade to 3.2.2. Exact commands for each OS are on this page.
Is CVE-2026-42404 being exploited?
CVE-2026-42404 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2026-42404 affect?
CVE-2026-42404 affects neethi. Severity is medium (CVSS 6.5). 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 policy from a remote URI, an outbound request
How urgent is CVE-2026-42404?
Priority 43/100. Remotely exploitable, no login, no user action; On your watchlist
Related CVEs
- CVE-2026-42402 HIGH 7.5 UPGRADE Apache Neethi is vulnerable to a Denial of Service attack through algorithmic complexity in policy normalizati
- CVE-2026-42403 HIGH 7.5 UPGRADE Apache Neethi does not properly detect circular references in policy definitions
- CVE-2026-66143 HIGH 7.5 DOWNGRADE It is possible to bypass the maximum number of normalized policy alternatives that was introduced in Apache Ne
- CVE-2026-66142 HIGH 7.5 UPGRADE Apache Neethi is vulnerable to uncontrolled recursion when parsing policies that lack policy Ids or with deepl
- CVE-2026-66144 HIGH 7.5 UPGRADE Although remote policy references are not retrieved during policy normalization, if they are manually retrieve