CVE-2026-22022
Privilege escalation via misconfigured Solr RuleBasedAuthorizationPlugin enables unauthorized API access.
Is CVE-2026-22022 being exploited?
Not confirmed. CVE-2026-22022 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.50% probability of exploitation in the next 30 days.
How severe is CVE-2026-22022?
CVE-2026-22022 is rated High with a CVSS score of 8.2. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-22022?
Yes. A fix has been recorded for CVE-2026-22022. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-22022 affect?
CVE-2026-22022 affects Apache Solr 5.3.0-9.10.0 with RuleBasedAuthorizationPlugin. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-22022?
Upgrade to Solr 9.10.1 or fix config to grant 'all' to admin.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Unauthorized access to Solr APIs via misconfigured RuleBasedAuthorizationPlugin; potential privilege escalation.
Patch when possible
- affected>= 5.3 and <= 9.10.0
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.