There is no fixed version for RHEL:8 openshift4/ose-monitoring-plugin-rhel9 .

Improper Neutralization in openshift4/ose-monitoring-plugin-rhel9 | CVE-2026-110910

Note: Versions mentioned in the description apply only to the upstream openshift4/ose-monitoring-plugin-rhel9 package and not the openshift4/ose-monitoring-plugin-rhel9 package as distributed by RHEL. See How to fix? for RHEL:8 relevant fixed versions and status.

Summary

qs.stringify with allowEmptyArrays: true writes the key of an empty array without encoding it, even though keys are encoded by default. A key that contains & (or the configured delimiter), =, or # therefore becomes query string syntax instead of data, so a caller-supplied key name can add parameters to the serialized query string, or cut it short.

Details

In lib/stringify.js, the allowEmptyArrays branch returns adjustedPrefix + '[]' early, before the code that passes every other key through encoder and formatter. So { "x&k=v": ["1"] } serializes as x%26k%3Dv%5B0%5D=1, but { "x&k=v": [] } serializes as x&k=v[]. The early return applies at any depth ({ "a": { "b&k=v": [] } } gives a[b&k=v][]), under every arrayFormat, with allowDots, and with a custom encoder, which is never called for that key. With encode: false or encodeValuesOnly: true, keys are intentionally left unencoded on every path; those configurations are not affected.

PoC




var qs = require(&#34;qs&#34;);
var query = qs.stringify({ q: &#34;hi&#34;, &#34;x&amp;apiKey=evil&amp;y&#34;: [] }, { allowEmptyArrays: true });
// &#34;q=hi&amp;x&amp;apiKey=evil&amp;y[]&#34;
qs.parse(query);
// { q: &#34;hi&#34;, x: &#34;&#34;, apiKey: &#34;evil&#34;, y: [&#34;&#34;] }
qs.stringify({ &#34;x#&#34;: [], z: &#34;1&#34; }, { allowEmptyArrays: true });
// &#34;x#[]&amp;z=1&#34;: in a URL, everything after &#34;#&#34; becomes the fragment

Fix

Applied in 234d505 on main and released as v6.17.0, and backported to v6.16.2, v6.15.4, v6.14.3, v6.13.4, and v6.12.6: the key of an empty array goes through encoder and formatter exactly as the key of any other value does, so { "x&apiKey=evil&y": [] } now serializes as x%26apiKey%3Devil%26y[]. Keys that need no encoding serialize as before, with two exceptions that match every other path: the brackets of a nested key are now encoded (a[b][] becomes a%5Bb%5D[], which qs.parse reads identically), and with encodeDotInKeys, a dot in the key becomes %252E instead of %2E (which decodeDotInKeys previously misread as nesting).

Affected versions

>=6.12.0 <6.12.6, fixed in v6.12.6
>=6.13.0 <6.13.4, fixed in v6.13.4
>=6.14.0 <6.14.3, fixed in v6.14.3
>=6.15.0 <6.15.4, fixed in v6.15.4
>=6.16.0 <6.16.2, fixed in v6.16.2

v6.17.0 and later are not affected.

allowEmptyArrays was introduced in f22b2bc and first shipped in v6.12.0, with this early return. Earlier versions have no allowEmptyArrays option and are not affected.

Impact

An application that passes an object whose key names come from untrusted input to qs.stringify with allowEmptyArrays: true (for example, to forward a parsed JSON body or user-selected fields to an upstream service) can have parameters injected into the resulting query string. The injected parameters are not keys of the object, so deleting or overwriting a key on the object (such as setting a trusted apiKey after copying the user's fields) does not remove them; whether the attacker's value or the application's wins depends on how the receiving side handles a duplicate parameter. A # in such a key ends the query string early when the result is placed in a URL. allowEmptyArrays is off by default, and only keys whose value (after any filter) is an empty array are affected.

Improper Neutralization Affecting openshift4/ose-monitoring-plugin-rhel9 package, versions *

Severity

Threat Intelligence

Do your applications use this vulnerable package?

Introduced: 27 Oct 2026

How to fix?

NVD Description

Summary

Details

PoC

Fix

Affected versions

Impact

References

CVSS Base Scores

Red Hat