CVE-2026-66142: Apache Neethi is vulnerable to uncontrolled recursion when parsing policies that lack policy Ids or with deepl

Q: How do I fix CVE-2026-66142?

neethi: upgrade to 3.2.3. Exact commands for each OS are on this page.

Q: Is CVE-2026-66142 being exploited?

CVE-2026-66142 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.

Q: What does CVE-2026-66142 affect?

CVE-2026-66142 affects neethi. Severity is high (CVSS 7.5). 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 due to runtime memory exhaustion. Users ar

Q: How urgent is CVE-2026-66142?

Priority 50/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

This month

HIGH 7.5REMOTEWATCHLISTUPGRADE

CVE-2026-66142 is a high-severity flaw (CVSS 7.5) affecting neethi. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.

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 due to runtime memory exhaustion. Users are recommended to upgrade to version 3.2.3, which fixes this issue.

Why this priority

High severity
Remotely exploitable, no login, no user action
On your watchlist

A fixed release or distro patch exists.

Risk facts

CVSS score	7.5 (High)
Attack vector	Network (remote)
Attack complexity	Low
Privileges needed	None
User interaction	None
EPSS exploit chance	0.7% (top 46%)
CISA exploited list	No
Weakness	CWE-400
Published	2026-07-24
Last modified	2026-10-24

Publisher (CNA): Apache Software Foundation · Vendor: apache

Last updated 2026-10-24 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score

Am I affected?

Timeline

2026-07-24 13:18 UTCPublished CVE record published
2026-10-24 13:10 UTCUpdated Record last modified

apache neethi UPGRADE

Affected: < 3.2.3

Fixed in: 3.2.3

Safe to downgrade to: no unaffected older release

1. Check installed version

apt-cache policy neethi || rpm -q neethi || neethi --version

2. UPGRADE to 3.2.3 (Debian / Ubuntu)

sudo apt update && sudo apt install --only-upgrade neethi

2. UPGRADE (RHEL / Amazon Linux / Fedora)

sudo dnf upgrade neethi

Note

Distros often backport fixes without changing the version number. Confirm with the distro advisory or changelog.

Exact fixes by distribution

Fedora 46 · gnome-shell-extension-tiling-assistant · FIXED · 56-1.fc46 · FEDORA-2026-ebf66a5321 · source

sudo dnf upgrade --advisory=FEDORA-2026-ebf66a5321

Verify at the official source NVD · CVE Program · Report a problem with this page
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-2026-66142?

neethi: upgrade to 3.2.3. Exact commands for each OS are on this page.

Is CVE-2026-66142 being exploited?

CVE-2026-66142 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-2026-66142 affect?

CVE-2026-66142 affects neethi. Severity is high (CVSS 7.5). 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 due to runtime memory exhaustion. Users ar

How urgent is CVE-2026-66142?

Priority 50/100. High severity; Remotely exploitable, no login, no user action; On your watchlist

Related CVEs

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-2026-66144 HIGH 7.5 UPGRADE Although remote policy references are not retrieved during policy normalization, if they are manually retrieve

References

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