Affects a widely used network monitoring tool; SQLi could lead to data breach and DB manipulation.
CVE-2026-26988
SQL injection in LibreNMS ajax_table.php via IPv6 search; remote DB access possible.
Is CVE-2026-26988 being exploited?
Not confirmed. CVE-2026-26988 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 7.4% probability of exploitation in the next 30 days.
How severe is CVE-2026-26988?
CVE-2026-26988 is rated Critical with a CVSS score of 9.3. 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-2026-26988?
Yes. A fix has been recorded for CVE-2026-26988. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-26988 affect?
CVE-2026-26988 affects LibreNMS (<=25.12.0). Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-26988?
Upgrade to 26.2.0; apply patch; test in staging.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
SQLi via IPv6 search; attacker can read/modify database through web endpoint.
Patch when possible
- affected< 26.2.0
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.