PatchTheCVECVE-2026-91867: When Neethi fetches a remote policy reference, it only limits the time per read, not the whole transfer, so a
CVE-2026-91867 is a medium-severity flaw (CVSS 4.3) affecting neethi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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.
Why this priority
- On your watchlist
A fixed release or distro patch exists.
Risk facts
| CVSS score | 4.3 (Medium) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | Required |
| EPSS exploit chance | 0.5% (top 58%) |
| CISA exploited list | No |
| Weakness | CWE-400 |
| Published | 2026-09-21 |
| Last modified | 2026-09-25 |
Last updated 2026-09-25 · 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-2026-91867?
neethi: upgrade to 3.2.4. Exact commands for each OS are on this page.
Is CVE-2026-91867 being exploited?
CVE-2026-91867 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-2026-91867 affect?
CVE-2026-91867 affects neethi. Severity is medium (CVSS 4.3). 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 a
How urgent is CVE-2026-91867?
Priority 31/100. On your watchlist
Related CVEs
- CVE-2026-42404 MEDIUM 6.5 UPGRADE Apache Neethi does not impose any restrictions on URIs when manually fetching remote policy references through
- 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